.page-contact {
  --pc-cut: 15deg;
  --pc-pad: clamp(20px, 4vw, 40px);
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 20px var(--gutter) 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--ink-54);
}

.page-contact .breadcrumb a {
  color: var(--ink-70);
  text-decoration: none;
  transition: color var(--t-fast);
}

.page-contact .breadcrumb a:hover {
  color: var(--flame);
}

.page-contact .breadcrumb__sep {
  color: var(--hair);
}

.page-contact .breadcrumb__here {
  color: var(--flame);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  background: var(--paper);
  padding: clamp(22px, 4vw, 46px) 0 clamp(40px, 6vw, 76px);
  overflow: hidden;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(115deg, transparent 0 50%, rgba(255, 77, 28, .10) 50% 66%, transparent 66%),
    linear-gradient(115deg, transparent 0 74%, rgba(78, 107, 133, .11) 74% 86%, transparent 86%);
}

.page-contact .contact-hero__shell {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 46px);
  align-items: end;
}

.page-contact .contact-hero__eyebrow {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .10em;
  color: var(--flame);
}

.page-contact .contact-hero h1 {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 8.4vw, 78px);
  line-height: 1.06;
  letter-spacing: -.022em;
  color: var(--ink);
  max-width: 16ch;
}

.page-contact .contact-hero__lede {
  margin: 0 0 28px;
  max-width: 54ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--ink-70);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 34px;
}

.page-contact .contact-hero__facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  background: var(--line-light);
  border-top: 1px solid var(--line-light);
  border-bottom: 1px solid var(--line-light);
}

.page-contact .contact-hero__facts div {
  background: var(--paper);
  padding: 14px 12px 14px 0;
}

.page-contact .contact-hero__facts div + div {
  padding-left: 14px;
}

.page-contact .contact-hero__facts dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .09em;
  color: var(--ink-54);
  margin-bottom: 6px;
}

.page-contact .contact-hero__facts dd {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(17px, 2.4vw, 24px);
  font-variant-numeric: tabular-nums;
  color: var(--ink);
}

.page-contact .contact-hero__media {
  margin: 0;
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  border-left: 3px solid var(--flame);
}

.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  max-width: 100%;
  height: auto;
  object-position: center;
}

/* ---------- 章节通用 ---------- */
.page-contact .section-num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(52px, 11vw, 118px);
  line-height: .82;
  letter-spacing: -.045em;
  color: var(--ink);
  opacity: .16;
  margin-bottom: 10px;
}

.page-contact .section--indigo .section-num,
.page-contact .section--ink .section-num {
  color: var(--paper);
  opacity: .17;
}

.page-contact .section h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 4.6vw, 42px);
  line-height: 1.2;
  letter-spacing: -.015em;
  color: var(--ink);
}

.page-contact .section--indigo h2,
.page-contact .section--ink h2 {
  color: var(--paper);
}

/* ---------- 合作方向 ---------- */
.page-contact .contact-paths {
  background: var(--paper);
}

.page-contact .contact-paths__head {
  max-width: 62ch;
  margin-bottom: clamp(28px, 4vw, 48px);
}

.page-contact .contact-paths__lede {
  margin: 0;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--ink-70);
}

.page-contact .path-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-contact .path-card {
  --pc-tint: rgba(255, 77, 28, .07);
  --pc-edge: var(--flame);
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 24px 20px 22px;
  background-color: var(--paper);
  background-image: linear-gradient(180deg, var(--pc-tint), transparent 72%);
  border: 1px solid var(--line-light);
  border-top: 3px solid var(--pc-edge);
  border-radius: var(--radius);
  transition: transform var(--t-base), box-shadow var(--t-base), border-color var(--t-base);
}

.page-contact .path-card--flame { --pc-tint: rgba(255, 77, 28, .09); --pc-edge: var(--flame); }
.page-contact .path-card--away { --pc-tint: rgba(78, 107, 133, .10); --pc-edge: var(--away); }
.page-contact .path-card--wine { --pc-tint: rgba(110, 30, 44, .09); --pc-edge: var(--wine); }
.page-contact .path-card--indigo { --pc-tint: rgba(27, 42, 68, .09); --pc-edge: var(--indigo); }

.page-contact .path-card:hover,
.page-contact .path-card:focus-within {
  transform: translateY(-4px);
  box-shadow: var(--shadow-soft);
  border-color: var(--pc-edge);
}

.page-contact .path-card__no {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--pc-edge);
  margin-bottom: 14px;
}

.page-contact .path-card h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 2vw, 21px);
  line-height: 1.3;
  color: var(--ink);
}

.page-contact .path-card > p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-70);
}

.page-contact .path-card__need {
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  margin-top: 0;
  transition: max-height var(--t-base), opacity var(--t-base), margin-top var(--t-base);
}

.page-contact .path-card:hover .path-card__need,
.page-contact .path-card:focus-within .path-card__need {
  max-height: 320px;
  opacity: 1;
  margin-top: 16px;
}

.page-contact .path-card__need .label {
  display: block;
  color: var(--pc-edge);
  margin-bottom: 8px;
}

.page-contact .path-card__need ul {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-light);
}

.page-contact .path-card__need li {
  position: relative;
  padding: 9px 0 9px 16px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ink-70);
  border-bottom: 1px solid var(--line-light);
}

.page-contact .path-card__need li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 17px;
  width: 6px;
  height: 1px;
  background: var(--pc-edge);
}

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

.page-contact .contact-flow::after {
  content: "";
  position: absolute;
  top: -20%;
  right: -12%;
  width: 46%;
  height: 150%;
  background: linear-gradient(180deg, rgba(255, 77, 28, .16), rgba(255, 77, 28, 0) 70%);
  transform: skewX(calc(-1 * var(--pc-cut)));
  pointer-events: none;
}

.page-contact .contact-flow .shell {
  position: relative;
  z-index: 1;
}

.page-contact .contact-flow__head {
  max-width: 58ch;
  margin-bottom: clamp(28px, 4vw, 46px);
}

.page-contact .contact-flow__lede {
  margin: 0;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--paper-72);
}

.page-contact .flow-track {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
}

.page-contact .flow-step {
  position: relative;
  margin-left: 8px;
  padding: 0 0 30px 42px;
  border-left: 1px solid var(--line-dark);
}

.page-contact .flow-step:last-child {
  padding-bottom: 4px;
}

.page-contact .flow-step::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 6px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(245, 184, 65, .18);
}

.page-contact .flow-step__idx {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--gold);
  margin-bottom: 8px;
}

.page-contact .flow-step__name {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.3;
  color: var(--paper);
}

.page-contact .flow-step__body {
  margin: 0;
  max-width: 34ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--paper-72);
}

.page-contact .contact-flow__more {
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--line-dark);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--paper-72);
}

.page-contact .contact-flow__more a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(245, 184, 65, .5);
  transition: border-color var(--t-fast), color var(--t-fast);
}

.page-contact .contact-flow__more a:hover {
  color: var(--paper);
  border-bottom-color: var(--paper);
}

/* ---------- 联系信息 ---------- */
.page-contact .contact-reach {
  position: relative;
  background: var(--ink);
  overflow: hidden;
  padding-top: clamp(52px, 7vw, 88px);
  padding-bottom: clamp(52px, 7vw, 88px);
}

.page-contact .contact-reach__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .22;
  filter: saturate(.72) contrast(1.05);
  pointer-events: none;
}

.page-contact .contact-reach::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(18, 16, 14, .86), rgba(18, 16, 14, .94));
  pointer-events: none;
}

.page-contact .contact-reach__shell {
  position: relative;
  z-index: 1;
}

.page-contact .contact-reach__head {
  max-width: 58ch;
  margin-bottom: clamp(26px, 4vw, 44px);
}

.page-contact .contact-reach__lede {
  margin: 0;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--paper-72);
}

.page-contact .reach-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line-dark);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .reach-card {
  background: rgba(18, 16, 14, .78);
  padding: 22px 20px 24px;
  border-left: 3px solid transparent;
  transition: border-color var(--t-base), background-color var(--t-base);
}

.page-contact .reach-card--wide {
  border-left-color: var(--flame);
}

.page-contact .reach-card:hover {
  background: rgba(18, 16, 14, .92);
}

.page-contact .reach-card .label {
  display: block;
  color: var(--slate);
  margin-bottom: 12px;
}

.page-contact .reach-card__value {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(15px, 1.6vw, 19px);
  line-height: 1.55;
  color: var(--paper);
  word-break: break-word;
  overflow-wrap: anywhere;
}

.page-contact .reach-card__note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--paper-44);
}

.page-contact .reach-card--meta {
  border-left-color: var(--gold);
}

/* ---------- 写信清单 ---------- */
.page-contact .contact-brief {
  background: var(--paper);
}

.page-contact .brief-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 46px);
}

.page-contact .brief-split__copy h2 {
  margin-bottom: 16px;
}

.page-contact .brief-split__copy > p {
  margin: 0 0 26px;
  max-width: 52ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--ink-70);
}

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

.page-contact .brief-list li {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line-light);
}

.page-contact .brief-list__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--flame);
}

.page-contact .brief-list__val {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-70);
}

.page-contact .brief-split__panel {
  background: var(--ink);
  color: var(--paper);
  padding: 28px 22px 26px;
  border-left: 3px solid var(--gold);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}

.page-contact .brief-split__panel h3 {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.3;
  color: var(--paper);
}

.page-contact .brief-steps {
  margin: 0 0 22px;
  padding: 0;
}

.page-contact .brief-steps > div {
  padding: 14px 0;
  border-bottom: 1px solid var(--line-dark);
}

.page-contact .brief-steps > div:first-child {
  border-top: 1px solid var(--line-dark);
}

.page-contact .brief-steps dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--gold);
  margin-bottom: 6px;
}

.page-contact .brief-steps dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--paper-72);
}

.page-contact .brief-split__tip {
  margin: 0;
  padding-top: 16px;
  border-top: 1px solid var(--line-dark);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--paper-44);
}

/* ---------- 常见问题 ---------- */
.page-contact .contact-faq {
  background: var(--paper);
  padding-top: 0;
}

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

.page-contact .faq-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-light);
}

.page-contact .faq-item {
  padding: 22px 0;
  border-bottom: 1px solid var(--line-light);
}

.page-contact .faq-item dt {
  position: relative;
  margin-bottom: 10px;
  padding-left: 20px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(16px, 1.8vw, 18px);
  line-height: 1.45;
  color: var(--ink);
}

.page-contact .faq-item dt::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 10px;
  height: 2px;
  background: var(--flame);
}

.page-contact .faq-item dd {
  margin: 0;
  padding-left: 20px;
  max-width: 66ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ink-70);
}

.page-contact .faq-item dd a {
  color: var(--flame);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 77, 28, .45);
  transition: border-color var(--t-fast), color var(--t-fast);
}

.page-contact .faq-item dd a:hover {
  color: var(--lava);
  border-bottom-color: var(--lava);
}

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

  .page-contact .reach-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .reach-card--wide {
    grid-column: 1 / -1;
  }

  .page-contact .brief-list li {
    grid-template-columns: minmax(0, 11rem) minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__shell {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-contact .contact-hero__media {
    aspect-ratio: 3 / 4;
  }

  .page-contact .brief-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-contact .flow-track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .flow-step {
    margin-left: 0;
    padding: 30px 24px 0 0;
    border-left: 0;
    border-top: 1px solid var(--line-dark);
  }

  .page-contact .flow-step:last-child {
    padding-right: 0;
  }

  .page-contact .flow-step::before {
    left: 0;
    top: -5px;
  }
}

@media (min-width: 1024px) {
  .page-contact .path-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    align-items: start;
  }

  .page-contact .path-card:nth-child(2),
  .page-contact .path-card:nth-child(4) {
    margin-top: 34px;
  }

  .page-contact .reach-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .reach-card--wide {
    grid-column: span 2;
  }
}

@media (hover: none), (max-width: 900px) {
  .page-contact .path-card__need {
    max-height: none;
    opacity: 1;
    margin-top: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .path-card,
  .page-contact .path-card__need,
  .page-contact .reach-card,
  .page-contact .breadcrumb a,
  .page-contact .faq-item dd a {
    transition: none;
  }

  .page-contact .path-card:hover,
  .page-contact .path-card:focus-within {
    transform: none;
  }
}