.page-contact {
  --pc-cut: 16px 0 8px 0;
  --pc-hair: rgba(14, 35, 55, 0.13);
  background: var(--cream);
  color: var(--body-ink);
}

/* ---------- 面包屑 ---------- */
.page-contact .contact-crumb {
  padding-top: var(--sp-3);
}

.page-contact .crumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--stone);
}

.page-contact .crumb a {
  color: var(--stone);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.page-contact .crumb a:hover {
  color: var(--gold);
}

.page-contact .crumb span[aria-current="page"] {
  color: var(--deep);
}

.page-contact .crumb li + li::before {
  content: "/";
  margin-right: 6px;
  color: var(--mist);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding: var(--sp-3) 0 var(--sp-5);
}

.page-contact .contact-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--sp-3);
}

.page-contact .contact-card {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: var(--sp-4) var(--sp-3);
  border: 1px solid var(--line-gold);
  border-radius: 16px 0 8px 0;
  background: var(--deep);
  color: var(--cream);
}

.page-contact .contact-card__bg {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
}

.page-contact .contact-card::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(160deg, rgba(14, 35, 55, 0.68), rgba(10, 12, 14, 0.93));
  pointer-events: none;
}

.page-contact .contact-card__kicker {
  color: var(--gold);
}

.page-contact .contact-card__title {
  margin: 0 0 var(--sp-3);
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 500;
  line-height: 1.35;
  letter-spacing: 0.01em;
  color: var(--cream);
}

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

.page-contact .contact-line {
  padding: var(--sp-2) 0;
  border-top: 1px solid var(--line-soft);
}

.page-contact .contact-line__label {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--celadon);
}

.page-contact .contact-line__value {
  margin: 0;
  font-size: 15px;
  line-height: 1.65;
  color: var(--cream);
  overflow-wrap: anywhere;
}

.page-contact .contact-line__value--mono {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--gold-glow);
}

.page-contact .contact-card__note {
  margin: var(--sp-3) 0 0;
  padding-top: var(--sp-2);
  border-top: 1px dashed var(--line-soft);
  font-size: 13px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .contact-hero__main h1 {
  margin: var(--sp-2) 0 var(--sp-3);
  font-family: var(--font-display);
  font-size: clamp(30px, 5.4vw, 52px);
  font-weight: 500;
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--deep);
}

.page-contact .contact-hero__lead {
  max-width: 62ch;
  margin: 0 0 var(--sp-3);
  font-size: 16px;
  line-height: 1.85;
  color: var(--body-ink);
}

.page-contact .contact-facts {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2) var(--sp-4);
  margin: 0 0 var(--sp-3);
  padding: var(--sp-3) 0;
  border-top: 1px solid var(--pc-hair);
  border-bottom: 1px solid var(--pc-hair);
  list-style: none;
}

.page-contact .contact-facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-contact .contact-facts__num {
  font-family: var(--font-mono);
  font-size: 20px;
  letter-spacing: 0.02em;
  color: var(--gold);
}

.page-contact .contact-facts__txt {
  font-size: 13px;
  color: var(--stone);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
}

/* ---------- 合作方式 ---------- */
.page-contact .ways__head {
  max-width: 62ch;
  margin-bottom: var(--sp-4);
}

.page-contact .ways__head h2 {
  margin: var(--sp-2) 0 var(--sp-2);
  font-family: var(--font-display);
  font-size: clamp(24px, 3.6vw, 36px);
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--deep);
}

.page-contact .ways__lead {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--stone);
}

.page-contact .ways__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--pc-hair);
}

.page-contact .way {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--sp-2);
  padding: var(--sp-3) var(--sp-2);
  border-bottom: 1px solid var(--pc-hair);
  border-left: 2px solid transparent;
  transition: border-color var(--dur) var(--ease),
              background-color var(--dur) var(--ease),
              transform var(--dur) var(--ease);
}

.page-contact .way:hover,
.page-contact .way:focus-within {
  border-left-color: var(--gold);
  background: rgba(200, 161, 90, 0.07);
  transform: translateX(4px);
}

.page-contact .way__index {
  font-size: 14px;
  letter-spacing: 0.12em;
  color: var(--gold);
}

.page-contact .way__title {
  margin: 0 0 var(--sp-2);
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 500;
  line-height: 1.4;
  color: var(--deep);
}

.page-contact .way__meta {
  margin: 0;
}

.page-contact .way__meta-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  margin-top: 10px;
}

.page-contact .way__meta-row dt {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--celadon);
}

.page-contact .way__meta-row dd {
  margin: 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--body-ink);
}

/* ---------- 合作流程 ---------- */
.page-contact .flow .kicker {
  color: var(--gold);
}

.page-contact .flow__figure {
  margin: 0 0 var(--sp-4);
}

.page-contact .flow__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 16px 0 8px 0;
  border: 1px solid var(--line-gold);
  opacity: 0.82;
}

.page-contact .flow__caption {
  margin-top: var(--sp-2);
  font-size: 13px;
  line-height: 1.7;
  letter-spacing: 0.03em;
  color: var(--mist);
}

.page-contact .flow__head {
  max-width: 58ch;
  margin-bottom: var(--sp-4);
}

.page-contact .flow__head h2 {
  margin: var(--sp-2) 0 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.6vw, 36px);
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--cream);
}

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

.page-contact .flow-step {
  position: relative;
  padding: var(--sp-3) 0 var(--sp-3) 46px;
}

.page-contact .flow-step::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 34px;
  bottom: -32px;
  width: 1px;
  background: linear-gradient(to bottom, var(--line-gold), rgba(200, 161, 90, 0.06));
  transform: skewX(-12deg);
  transform-origin: top center;
}

.page-contact .flow-step:last-child::before {
  display: none;
}

.page-contact .flow-step__node {
  position: absolute;
  left: 0;
  top: 31px;
  width: 14px;
  height: 14px;
  background: var(--deep);
  border: 1px solid var(--gold);
  transform: rotate(45deg);
  transition: background-color var(--dur) var(--ease);
}

.page-contact .flow-step:has(details[open]) .flow-step__node {
  background: var(--gold);
}

.page-contact .flow-step__details {
  border-radius: 16px 0 8px 0;
}

.page-contact .flow-step__summary {
  display: flex;
  align-items: baseline;
  gap: var(--sp-2);
  list-style: none;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 500;
  line-height: 1.5;
  color: var(--cream);
  transition: color var(--dur) var(--ease);
}

.page-contact .flow-step__summary::-webkit-details-marker {
  display: none;
}

.page-contact .flow-step__summary:hover {
  color: var(--gold-glow);
}

.page-contact .flow-step__summary::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--gold);
}

.page-contact .flow-step__details[open] .flow-step__summary::after {
  content: "\2212";
}

.page-contact .flow-step__no {
  flex: none;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--gold);
}

.page-contact .flow-step__panel {
  max-width: 66ch;
  padding-top: var(--sp-2);
}

.page-contact .flow-step__panel p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 资料准备 ---------- */
.page-contact .prep__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--sp-4);
}

.page-contact .prep__intro h2 {
  margin: var(--sp-2) 0 var(--sp-2);
  font-family: var(--font-display);
  font-size: clamp(24px, 3.6vw, 34px);
  font-weight: 500;
  line-height: 1.25;
  color: var(--deep);
}

.page-contact .prep__intro > p {
  margin: 0 0 var(--sp-3);
  max-width: 44ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--stone);
}

.page-contact .prep__list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--sp-2);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .prep-item {
  padding: var(--sp-3);
  border: 1px solid rgba(14, 35, 55, 0.1);
  border-radius: 16px 0 8px 0;
  background: rgba(255, 255, 255, 0.66);
}

.page-contact .prep-item h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 500;
  line-height: 1.4;
  color: var(--deep);
}

.page-contact .prep-item h3::before {
  content: "";
  flex: none;
  width: 8px;
  height: 8px;
  border: 1px solid var(--celadon);
  transform: rotate(45deg);
}

.page-contact .prep-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--stone);
}

/* ---------- 联系渠道 ---------- */
.page-contact .channels__panel {
  position: relative;
  overflow: hidden;
  padding: var(--sp-4) var(--sp-3);
  border: 1px solid var(--line-gold);
  border-radius: 16px 0 8px 0;
  background: linear-gradient(155deg, var(--night), var(--ink) 82%);
  color: var(--cream);
}

.page-contact .channels__panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    102deg,
    rgba(200, 161, 90, 0.09) 0 1px,
    transparent 1px 72px
  );
  pointer-events: none;
}

.page-contact .channels__head {
  position: relative;
  max-width: 58ch;
  margin-bottom: var(--sp-4);
}

.page-contact .channels .kicker {
  color: var(--gold);
}

.page-contact .channels__head h2 {
  margin: var(--sp-2) 0 var(--sp-2);
  font-family: var(--font-display);
  font-size: clamp(24px, 3.6vw, 34px);
  font-weight: 500;
  line-height: 1.25;
  color: var(--cream);
}

.page-contact .channels__head p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .channels__grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--sp-2);
}

.page-contact .channel {
  padding: var(--sp-3);
  border: 1px solid var(--line-soft);
  border-radius: 16px 0 8px 0;
  background: rgba(255, 255, 255, 0.04);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-contact .channel:hover {
  border-color: var(--line-gold);
  transform: translateY(-3px);
}

.page-contact .channel__label {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--celadon);
}

.page-contact .channel__value {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--cream);
  overflow-wrap: anywhere;
}

.page-contact .channel__value--mono {
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
  color: var(--gold-glow);
}

.page-contact .channel__hint {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .channels__note {
  position: relative;
  max-width: 72ch;
  margin: var(--sp-4) 0 0;
  padding-top: var(--sp-3);
  border-top: 1px solid var(--line-soft);
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .channels__note a {
  color: var(--gold-glow);
  text-decoration: none;
  border-bottom: 1px solid var(--line-gold);
  transition: color var(--dur) var(--ease);
}

.page-contact .channels__note a:hover {
  color: var(--gold);
}

/* ---------- 过渡带 ---------- */
.page-contact .contact-fade {
  height: 88px;
  background: linear-gradient(to bottom, var(--cream), var(--deep));
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-contact .contact-facts {
    gap: var(--sp-2) var(--sp-5);
  }

  .page-contact .prep__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--sp-3);
  }

  .page-contact .prep-item:first-child {
    grid-column: 1 / -1;
  }

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

  .page-contact .channels__panel {
    padding: var(--sp-5) var(--sp-4);
  }

  .page-contact .way__meta-row {
    grid-template-columns: 76px minmax(0, 1fr);
    gap: var(--sp-2);
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-contact .prep__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.45fr);
    gap: var(--sp-5);
    align-items: start;
  }

  .page-contact .prep__intro {
    position: sticky;
    top: 96px;
  }

  .page-contact .contact-hero {
    padding: var(--sp-4) 0 var(--sp-5);
  }

  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(300px, 380px) minmax(0, 1fr);
    gap: var(--sp-5);
    align-items: start;
  }

  .page-contact .contact-card {
    position: sticky;
    top: 96px;
    padding: var(--sp-4) var(--sp-3) var(--sp-5);
  }
}

@media (min-width: 1024px) {
  .page-contact .way {
    grid-template-columns: 84px minmax(0, 1fr);
    gap: var(--sp-3);
    padding: var(--sp-4) var(--sp-2);
  }

  .page-contact .flow-step {
    padding-left: 60px;
  }

  .page-contact .flow-step::before {
    left: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .way,
  .page-contact .channel,
  .page-contact .flow-step__node,
  .page-contact .flow-step__summary {
    transition: none;
  }

  .page-contact .way:hover,
  .page-contact .way:focus-within,
  .page-contact .channel:hover {
    transform: none;
  }
}