.page-contact {
  --pc-pad-block: clamp(48px, 8vw, 104px);
  --pc-head-gap: clamp(28px, 5vw, 48px);
  background: var(--paper);
  color: var(--text);
}

.page-contact .eyebrow {
  color: var(--teal);
  letter-spacing: 0.14em;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--paper);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--line-dark) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line-dark) 1px, transparent 1px);
  background-size: 72px 72px;
  pointer-events: none;
}

.page-contact .contact-hero__inner {
  position: relative;
  display: grid;
  gap: clamp(30px, 6vw, 56px);
  padding-block: clamp(44px, 8vw, 96px);
}

.page-contact .contact-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 clamp(18px, 4vw, 32px);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: rgba(244, 246, 248, 0.55);
}

.page-contact .contact-crumbs a {
  color: inherit;
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

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

.page-contact .contact-hero .eyebrow {
  margin: 0 0 14px;
  color: var(--cyan);
}

.page-contact .contact-hero__title {
  margin: 0 0 20px;
  font-size: clamp(2.15rem, 7.2vw, 4.2rem);
  font-weight: 900;
  line-height: 1.07;
  letter-spacing: -0.03em;
}

.page-contact .contact-hero__lead {
  max-width: 34em;
  margin: 0 0 14px;
  font-size: clamp(0.98rem, 1.8vw, 1.1rem);
  line-height: 1.9;
  color: rgba(244, 246, 248, 0.78);
}

.page-contact .contact-hero__note {
  max-width: 34em;
  margin: 0 0 26px;
  font-size: 0.9rem;
  line-height: 1.8;
  color: rgba(244, 246, 248, 0.55);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: clamp(26px, 5vw, 40px);
}

.page-contact .contact-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin: 0;
  padding-top: 20px;
  border-top: 1px solid var(--line-dark);
}

.page-contact .contact-hero__stats dt {
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: rgba(244, 246, 248, 0.52);
}

.page-contact .contact-hero__stats dd {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(1.25rem, 3vw, 1.85rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--cyan);
}

.page-contact .contact-hero__visual {
  display: grid;
  place-items: center;
  min-width: 0;
  color: var(--grid);
}

.page-contact .contact-hero__svg {
  display: block;
  width: 100%;
  max-width: 560px;
  height: auto;
}

/* ---------- 章节通用 ---------- */
.page-contact .contact-directions,
.page-contact .contact-flow,
.page-contact .contact-routes,
.page-contact .contact-qa {
  padding-block: var(--pc-pad-block);
}

.page-contact .contact-section__head {
  max-width: 44rem;
  margin-bottom: var(--pc-head-gap);
}

.page-contact .contact-section__title {
  margin: 10px 0 14px;
  font-size: clamp(1.6rem, 4.4vw, 2.6rem);
  font-weight: 900;
  line-height: 1.22;
  letter-spacing: -0.025em;
}

.page-contact .contact-section__desc {
  margin: 0;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 合作方向 ---------- */
.page-contact .contact-tabs {
  display: grid;
  gap: clamp(20px, 4vw, 40px);
}

.page-contact .contact-tabs__list {
  display: grid;
  gap: 2px;
  min-width: 0;
  border-top: 1px solid var(--line-light);
}

.page-contact .contact-tabs__tab {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 3px 14px;
  position: relative;
  padding: 16px 16px 16px 18px;
  text-align: left;
  cursor: pointer;
  border: 0;
  border-bottom: 1px solid var(--line-light);
  background: none;
  color: var(--text);
  font-family: var(--font-sans);
  transition: background 200ms var(--ease);
}

.page-contact .contact-tabs__tab::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 3px;
  background: var(--orange);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 200ms var(--ease);
}

.page-contact .contact-tabs__tab:hover {
  background: rgba(15, 167, 155, 0.06);
}

.page-contact .contact-tabs__tab[aria-selected="true"] {
  background: rgba(15, 167, 155, 0.1);
}

.page-contact .contact-tabs__tab[aria-selected="true"]::before {
  transform: scaleY(1);
}

.page-contact .contact-tabs__num {
  grid-column: 1;
  align-self: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-contact .contact-tabs__name {
  grid-column: 2;
  font-size: clamp(1.08rem, 2vw, 1.32rem);
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-contact .contact-tabs__tab[aria-selected="true"] .contact-tabs__name {
  color: var(--teal);
}

.page-contact .contact-tabs__sub {
  grid-column: 1 / -1;
  font-size: 0.84rem;
  line-height: 1.6;
  color: var(--muted);
}

.page-contact .contact-tabs__panel {
  min-width: 0;
  padding: clamp(24px, 4vw, 40px);
  background: var(--ink);
  color: var(--paper);
  border-top: 3px solid var(--cyan);
}

.page-contact .contact-tabs__panel + .contact-tabs__panel {
  margin-top: 16px;
}

.page-contact .contact-tabs__kicker {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-contact .contact-tabs__title {
  margin: 0 0 14px;
  font-size: clamp(1.32rem, 3vw, 1.9rem);
  font-weight: 900;
  letter-spacing: -0.02em;
}

.page-contact .contact-tabs__text {
  margin: 0 0 24px;
  font-size: 0.95rem;
  line-height: 1.9;
  color: rgba(244, 246, 248, 0.76);
}

.page-contact .contact-tabs__meta {
  display: grid;
  gap: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--line-dark);
}

.page-contact .contact-tabs__label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--orange);
}

.page-contact .contact-tabs__value {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: rgba(244, 246, 248, 0.85);
}

.page-contact .contact-tabs__deliver {
  margin: 0;
  padding-left: 18px;
  font-size: 0.92rem;
  line-height: 1.8;
  color: rgba(244, 246, 248, 0.85);
}

.page-contact .contact-tabs__deliver li {
  margin-bottom: 5px;
}

.page-contact .contact-tabs__link {
  display: inline-block;
  margin-top: 24px;
  padding-bottom: 2px;
  font-size: 0.9rem;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-contact .contact-tabs__link:hover {
  color: var(--orange);
}

/* ---------- 流程 ---------- */
.page-contact .contact-flow {
  border-top: 1px solid var(--line-light);
}

.page-contact .contact-flow__steps {
  list-style: none;
  margin: 0 0 clamp(28px, 5vw, 44px);
  padding: 0;
  display: grid;
  gap: 0;
}

.page-contact .contact-step {
  padding: 20px 8px 24px 0;
  border-top: 1px solid var(--line-light);
  transition: border-color 180ms var(--ease);
}

.page-contact .contact-step:hover {
  border-top-color: var(--teal);
}

.page-contact .contact-step__num {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--teal);
}

.page-contact .contact-step__title {
  margin: 0 0 8px;
  font-size: 1.06rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-contact .contact-step__time {
  display: inline-block;
  margin: 0 0 10px;
  padding: 3px 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--teal);
  border: 1px solid var(--teal);
}

.page-contact .contact-step__text {
  margin: 0 0 10px;
  font-size: 0.93rem;
  line-height: 1.85;
  color: rgba(10, 17, 24, 0.76);
}

.page-contact .contact-step__deliver {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--muted);
}

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

.page-contact .contact-flow__figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line-light);
  object-fit: cover;
}

.page-contact .media__cap {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--muted);
}

/* ---------- 联系方式 ---------- */
.page-contact .contact-info {
  padding-block: var(--pc-pad-block);
  background: var(--ink);
  color: var(--paper);
}

.page-contact .contact-info .eyebrow {
  color: var(--cyan);
}

.page-contact .contact-info__inner {
  display: grid;
  gap: clamp(30px, 6vw, 64px);
  align-items: start;
}

.page-contact .contact-info__title {
  margin: 10px 0 16px;
  font-size: clamp(1.68rem, 4.6vw, 2.7rem);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.025em;
}

.page-contact .contact-info__lead {
  max-width: 36em;
  margin: 0 0 clamp(24px, 4vw, 36px);
  line-height: 1.9;
  color: rgba(244, 246, 248, 0.72);
}

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

.page-contact .contact-info__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 6px 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line-dark);
}

.page-contact .contact-info__label {
  grid-column: 1 / -1;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: rgba(244, 246, 248, 0.5);
}

.page-contact .contact-info__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(1.05rem, 4.6vw, 1.8rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .contact-info__value--sm {
  font-size: clamp(0.95rem, 3.2vw, 1.3rem);
  line-height: 1.6;
}

.page-contact .contact-copy {
  grid-row: 2;
  align-self: center;
  padding: 8px 14px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--cyan);
  background: transparent;
  border: 1px solid var(--cyan);
  cursor: pointer;
  transition: background 180ms var(--ease), color 180ms var(--ease);
}

.page-contact .contact-copy:hover {
  background: var(--cyan);
  color: var(--ink);
}

.page-contact .contact-copy[data-copied] {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--ink);
}

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

.page-contact .contact-info__figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line-dark);
  object-fit: cover;
}

/* ---------- 分流通道 ---------- */
.page-contact .contact-routes {
  background: var(--mist);
}

.page-contact .contact-routes__grid {
  display: grid;
  gap: clamp(24px, 3vw, 32px);
  position: relative;
  padding-top: 30px;
}

.page-contact .contact-routes__grid::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--teal), var(--orange));
  opacity: 0.85;
}

.page-contact .contact-route {
  position: relative;
  padding-top: 14px;
  min-width: 0;
}

.page-contact .contact-route::before {
  content: "";
  position: absolute;
  top: -30px;
  left: 0;
  width: 2px;
  height: 30px;
  background: var(--orange);
}

.page-contact .contact-route__tag {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--teal);
}

.page-contact .contact-route h3 {
  margin: 0 0 10px;
  font-size: clamp(1.04rem, 2.2vw, 1.24rem);
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-contact .contact-route p {
  margin: 0 0 14px;
  font-size: 0.93rem;
  line-height: 1.85;
  color: rgba(10, 17, 24, 0.76);
}

.page-contact .contact-route__link {
  display: inline-block;
  padding-bottom: 2px;
  font-size: 0.88rem;
  color: var(--teal);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-contact .contact-route__link:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* ---------- 常见疑问 ---------- */
.page-contact .contact-faq {
  max-width: 900px;
  border-top: 1px solid var(--line-light);
}

.page-contact .contact-faq__item {
  border-bottom: 1px solid var(--line-light);
}

.page-contact .contact-faq .faq__q {
  position: relative;
  padding: 20px 42px 20px 0;
  font-size: clamp(0.98rem, 2vw, 1.1rem);
  font-weight: 700;
  cursor: pointer;
  list-style: none;
}

.page-contact .contact-faq .faq__q::-webkit-details-marker {
  display: none;
}

.page-contact .contact-faq .faq__q::after {
  content: "+";
  position: absolute;
  top: 50%;
  right: 6px;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 1.15rem;
  color: var(--teal);
}

.page-contact .contact-faq__item[open] .faq__q::after {
  content: "–";
}

.page-contact .contact-faq .faq__a {
  padding: 0 0 22px;
}

.page-contact .contact-faq .faq__a p {
  max-width: 42em;
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.9;
  color: rgba(10, 17, 24, 0.76);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .contact-tabs__meta {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 24px;
  }
}

@media (min-width: 880px) {
  .page-contact .contact-flow__steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0 24px;
  }

  .page-contact .contact-step {
    padding-right: 4px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
  }

  .page-contact .contact-tabs {
    grid-template-columns: minmax(0, 320px) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 72px);
    align-items: start;
  }

  .page-contact .contact-tabs__list {
    position: sticky;
    top: calc(var(--bar-h) + 24px);
  }

  .page-contact .contact-tabs__panel + .contact-tabs__panel {
    margin-top: 0;
  }

  .page-contact .contact-info__inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }

  .page-contact .contact-routes__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(24px, 3vw, 40px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}