.page-contact {
  --pc-radius: var(--radius);
  --pc-space: clamp(20px, 3vw, 30px);
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  margin-bottom: 20px;
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero__grid {
  display: grid;
  gap: var(--gap);
  align-items: start;
}

.page-contact h1 {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(28px, 6.6vw, 52px);
  line-height: 1.07;
  letter-spacing: -0.025em;
  color: var(--ink);
}

.page-contact .pc-hero__lead {
  margin: 16px 0 0;
  max-width: 640px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--stone);
}

.page-contact .pc-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 26px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.page-contact .pc-hero__stat {
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-width: 0;
}

.page-contact .pc-hero__stat .stat__num {
  font-family: var(--font-mono);
  font-size: clamp(24px, 5.4vw, 34px);
  line-height: 1.1;
}

.page-contact .pc-hero__stat .stat__label {
  font-size: 12px;
  line-height: 1.5;
  color: var(--stone);
}

.page-contact .pc-hero__figure {
  margin: 0;
}

@media (min-width: 940px) {
  .page-contact .pc-hero__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    align-items: center;
    gap: clamp(28px, 4vw, 52px);
  }
  .page-contact .pc-hero__stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 对接流程 + 联系卡 ---------- */
.page-contact .pc-flow__grid {
  display: grid;
  gap: clamp(24px, 3.4vw, 34px);
}

@media (min-width: 1040px) {
  .page-contact .pc-flow__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
  }
}

.page-contact .pc-flow__intro {
  margin: 14px 0 0;
  max-width: 680px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--stone);
}

.page-contact .pc-flow__terms {
  position: relative;
  margin-top: 28px;
}

.page-contact .pc-flow__rail {
  display: none;
  position: absolute;
  left: 12.5%;
  right: 12.5%;
  top: 17px;
  height: 8px;
  color: var(--line);
  pointer-events: none;
}

.page-contact .pc-flow__rail svg {
  display: block;
  width: 100%;
  height: 100%;
}

.page-contact .pc-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

@media (min-width: 760px) {
  .page-contact .pc-flow__rail {
    display: block;
  }
  .page-contact .pc-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: clamp(10px, 1.6vw, 22px);
  }
}

.page-contact .pc-step {
  display: block;
  background: transparent;
  border: 0;
}

.page-contact .pc-step > summary {
  list-style: none;
  display: block;
  position: relative;
  padding: 0 30px 0 0;
  cursor: pointer;
}

.page-contact .pc-step > summary::-webkit-details-marker {
  display: none;
}

.page-contact .pc-step > summary::marker {
  content: "";
}

.page-contact .pc-step > summary::after {
  content: "＋";
  position: absolute;
  top: 8px;
  right: 0;
  font-size: 15px;
  line-height: 1;
  color: var(--stone);
  transition: color 0.18s ease;
}

.page-contact .pc-step[open] > summary::after {
  content: "－";
  color: var(--orange);
}

.page-contact .pc-step__no {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--ink);
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
  position: relative;
  z-index: 1;
  transition: background 0.18s ease, color 0.18s ease;
}

.page-contact .pc-step[open] .pc-step__no {
  background: var(--orange);
  color: var(--cream);
}

.page-contact .pc-step__label {
  display: block;
  margin-top: 12px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 16.5px;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-contact .pc-step__time {
  display: inline-block;
  margin-top: 8px;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  background: var(--paper-dim);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--stone);
}

.page-contact .pc-step__body {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-size: 14px;
  line-height: 1.75;
  color: var(--stone);
}

/* 联系卡 */
.page-contact .pc-contact-card {
  position: relative;
  overflow: hidden;
  padding: 26px 22px 24px;
  border: 1px solid var(--ink-line-strong);
  border-radius: var(--radius);
  background: var(--ink);
  color: var(--cream);
  box-shadow: var(--shadow-lift);
}

.page-contact .pc-contact-card::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--orange), var(--amber));
}

.page-contact .pc-contact-card__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-contact .pc-contact-card__title {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(20px, 3.4vw, 26px);
  letter-spacing: -0.015em;
  color: var(--cream);
}

.page-contact .pc-contact-card__text {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--ink-text);
}

.page-contact .pc-contact-card__list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-contact .pc-contact-card__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-text);
}

.page-contact .pc-contact-card__list li::before {
  content: "";
  position: absolute;
  top: 9px;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--amber);
}

.page-contact .pc-contact-card__mail {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--ink-line);
  font-family: var(--font-mono);
  font-size: clamp(14px, 2.7vw, 17px);
  letter-spacing: -0.01em;
  color: var(--cream);
  word-break: break-all;
}

.page-contact .pc-contact-card__hint {
  margin: 8px 0 0;
  font-size: 12.5px;
  line-height: 1.62;
  color: var(--ink-text-dim);
}

/* ---------- 合作方向 ---------- */
.page-contact .pc-directions__intro {
  margin: 14px 0 0;
  max-width: 660px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--stone);
}

.page-contact .pc-direction-grid {
  display: grid;
  gap: var(--gap);
  margin-top: var(--pc-space);
}

@media (min-width: 960px) {
  .page-contact .pc-direction-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    align-items: start;
  }
  .page-contact .pc-direction--a {
    grid-column: span 7;
  }
  .page-contact .pc-direction--b {
    grid-column: span 5;
  }
  .page-contact .pc-direction--c {
    grid-column: span 5;
  }
  .page-contact .pc-direction--d {
    grid-column: span 7;
  }
}

.page-contact .pc-direction {
  position: relative;
  padding: 22px 20px 24px;
  border: 1px solid var(--line);
  border-top-width: 3px;
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: var(--shadow);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.page-contact .pc-direction--a {
  border-top-color: var(--orange);
}

.page-contact .pc-direction--b {
  border-top-color: var(--moss);
}

.page-contact .pc-direction--c {
  border-top-color: var(--amber);
}

.page-contact .pc-direction--d {
  border-top-color: var(--cyan);
}

.page-contact .pc-direction:hover {
  box-shadow: var(--shadow-lift);
  transform: translateY(-2px);
}

.page-contact .pc-direction__arrow {
  position: absolute;
  top: 20px;
  right: 18px;
  font-size: 18px;
  line-height: 1;
  color: var(--orange);
  opacity: 0;
  transform: translateX(-8px);
  transition: opacity 0.2s ease, transform 0.2s ease;
  pointer-events: none;
}

.page-contact .pc-direction:hover .pc-direction__arrow,
.page-contact .pc-direction:focus-within .pc-direction__arrow {
  opacity: 1;
  transform: translateX(0);
}

.page-contact .pc-direction__title {
  margin: 0;
  padding-right: 26px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(18px, 2.6vw, 22px);
  letter-spacing: -0.015em;
  color: var(--ink);
}

.page-contact .pc-direction__text {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--stone);
}

.page-contact .pc-direction__tags {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* ---------- 地图标注 ---------- */
.page-contact .pc-map__grid {
  display: grid;
  gap: clamp(22px, 3vw, 36px);
  align-items: center;
}

@media (min-width: 900px) {
  .page-contact .pc-map__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  }
}

.page-contact .pc-map__figure {
  margin: 0;
}

.page-contact .pc-map__lead {
  margin: 14px 0 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--stone);
}

.page-contact .pc-map__lead a {
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid var(--orange-soft);
}

.page-contact .pc-map__lead a:hover {
  color: var(--orange-soft);
}

.page-contact .pc-map__points {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-contact .pc-map__points li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.76;
  color: var(--stone);
}

.page-contact .pc-map__points li::before {
  content: "";
  position: absolute;
  top: 9px;
  left: 0;
  width: 9px;
  height: 9px;
  border: 1.5px solid var(--green);
  border-radius: 2px;
}

.page-contact .pc-map__points strong {
  color: var(--ink);
  font-weight: 700;
}

/* ---------- 材料清单 ---------- */
.page-contact .pc-checklist {
  list-style: none;
  margin: var(--pc-space) 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

@media (min-width: 780px) {
  .page-contact .pc-checklist {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px 20px;
  }
}

.page-contact .pc-checklist li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 13px 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--paper);
  font-size: 15px;
  line-height: 1.7;
  color: var(--stone);
}

.page-contact .pc-checklist li::before {
  content: "✓";
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  margin-top: 3px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--cream);
  color: var(--moss);
  font-size: 12px;
  line-height: 1;
}

/* ---------- 问答 ---------- */
.page-contact .pc-faq__grid {
  margin-top: var(--pc-space);
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

@media (min-width: 780px) {
  .page-contact .pc-faq__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-contact .pc-faq__item {
  background: var(--paper);
  padding: 20px 18px 22px;
}

.page-contact .pc-faq__q {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-contact .pc-faq__a {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--stone);
}

.page-contact .pc-faq__a a {
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid var(--orange-soft);
}

.page-contact .pc-faq__a a:hover {
  color: var(--orange-soft);
}

/* ---------- 联系渠道 ---------- */
.page-contact .pc-channels__intro {
  margin: 14px 0 0;
  max-width: 660px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--stone);
}

.page-contact .pc-channels__grid {
  margin-top: var(--pc-space);
  display: grid;
  gap: 12px;
}

@media (min-width: 840px) {
  .page-contact .pc-channels__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-contact .pc-channel {
  position: relative;
  overflow: hidden;
  padding: 24px 20px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: var(--shadow);
}

.page-contact .pc-channel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
}

.page-contact .pc-channel--orange::before {
  background: var(--orange);
}

.page-contact .pc-channel--moss::before {
  background: var(--moss);
}

.page-contact .pc-channel--amber::before {
  background: var(--amber);
}

.page-contact .pc-channel__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--stone);
}

.page-contact .pc-channel__value {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(16px, 2.4vw, 19px);
  line-height: 1.55;
  letter-spacing: -0.01em;
  color: var(--ink);
  word-break: break-word;
}

.page-contact .pc-channel__value--num {
  font-family: var(--font-mono);
  font-size: clamp(20px, 3vw, 25px);
  letter-spacing: 0.01em;
  color: var(--orange);
}

.page-contact .pc-channel__note {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.76;
  color: var(--stone);
}