.page-contact {
  --pc-ink: #061A12;
  --pc-ink-soft: #41524B;
  --pc-line-light: rgba(6, 26, 18, .14);
  --pc-warn: var(--alert);
  background: var(--mist);
  color: var(--pc-ink);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-contact h2,
.page-contact h3 {
  font-family: var(--font-display);
}

/* ---------- 面包屑 ---------- */
.page-contact .pc-crumb {
  padding-top: clamp(1rem, 3vw, 1.75rem);
}

.page-contact .pc-crumb ul {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: .82rem;
}

.page-contact .pc-crumb li {
  display: flex;
  align-items: center;
  gap: .4rem;
}

.page-contact .pc-crumb li + li::before {
  content: "/";
  color: rgba(244, 247, 245, .34);
}

.page-contact .pc-crumb a {
  color: rgba(244, 247, 245, .74);
  text-decoration: none;
}

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

.page-contact .pc-crumb li[aria-current] {
  color: var(--signal);
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  position: relative;
  background:
    radial-gradient(circle at 84% 8%, rgba(25, 227, 209, .16), transparent 48%),
    linear-gradient(158deg, var(--turf) 0%, var(--night) 82%);
  color: var(--mist);
  padding-bottom: clamp(2.5rem, 6vw, 4.5rem);
  overflow: hidden;
}

.page-contact .pc-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(61, 220, 132, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(61, 220, 132, .07) 1px, transparent 1px);
  background-size: 72px 72px;
  pointer-events: none;
}

.page-contact .pc-hero > .wrap {
  position: relative;
  z-index: 1;
}

.page-contact .pc-hero__grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
  align-items: start;
  padding-top: clamp(1.5rem, 4vw, 2.5rem);
}

.page-contact .pc-eyebrow {
  color: var(--cyan);
  letter-spacing: .2em;
  font-size: .78rem;
  margin: 0;
}

.page-contact .pc-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.85rem, 4.6vw, 3.3rem);
  line-height: 1.16;
  letter-spacing: -.01em;
  color: #fff;
  margin: .65rem 0 0;
}

.page-contact .pc-hero__intro {
  margin: 1.1rem 0 0;
  max-width: 46ch;
  font-size: clamp(1rem, 1.5vw, 1.07rem);
  line-height: 1.9;
  color: rgba(244, 247, 245, .82);
}

.page-contact .pc-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin: 1.5rem 0 0;
}

/* ---------- 快速联系卡 ---------- */
.page-contact .pc-quick {
  position: relative;
  border: 1px solid rgba(61, 220, 132, .28);
  background: linear-gradient(180deg, rgba(7, 26, 43, .88), rgba(11, 61, 46, .7));
  padding: clamp(1.25rem, 3vw, 1.75rem);
  box-shadow: 0 22px 48px -30px rgba(0, 0, 0, .95);
}

.page-contact .pc-quick::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 64px;
  height: 3px;
  background: var(--signal);
}

.page-contact .pc-quick__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .2em;
  color: var(--signal);
}

.page-contact .pc-quick__list {
  margin: 1.1rem 0 0;
  display: grid;
  gap: .85rem;
}

.page-contact .pc-quick__row {
  display: grid;
  gap: .2rem;
  padding-bottom: .75rem;
  border-bottom: 1px solid rgba(148, 163, 184, .18);
}

.page-contact .pc-quick__row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .pc-quick__row dt {
  font-size: .74rem;
  letter-spacing: .12em;
  color: var(--neutral);
}

.page-contact .pc-quick__row dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .95rem;
  word-break: break-all;
  color: var(--mist);
}

.page-contact .pc-quick__row dd a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(25, 227, 209, .4);
}

.page-contact .pc-quick__row dd a:hover {
  color: #fff;
  border-bottom-color: #fff;
}

.page-contact .pc-quick__hint {
  margin: 1.1rem 0 0;
  font-size: .84rem;
  line-height: 1.7;
  color: rgba(244, 247, 245, .68);
}

/* ---------- 章节骨架 ---------- */
.page-contact .pc-sec {
  padding: clamp(2.5rem, 6vw, 5rem) 0;
}

.page-contact .pc-sec--light {
  background: var(--mist);
}

.page-contact .pc-sec--flow {
  padding-top: clamp(1rem, 2vw, 1.5rem);
}

.page-contact .pc-sec--turf {
  background: linear-gradient(165deg, var(--turf) 0%, #06131F 92%);
  color: var(--mist);
}

.page-contact .pc-sec--night {
  background:
    radial-gradient(circle at 12% 0%, rgba(91, 75, 255, .18), transparent 52%),
    var(--night);
  color: var(--mist);
}

.page-contact .pc-head {
  max-width: 62ch;
  margin-bottom: clamp(1.6rem, 4vw, 2.6rem);
}

.page-contact .pc-head .chapter__index {
  font-family: var(--font-mono);
  font-size: .86rem;
  letter-spacing: .2em;
  color: var(--turf);
  margin: 0;
}

.page-contact .pc-head .chapter__title {
  font-weight: 800;
  font-size: clamp(1.45rem, 3.3vw, 2.2rem);
  line-height: 1.25;
  letter-spacing: -.01em;
  margin: .5rem 0 0;
  color: var(--pc-ink);
}

.page-contact .pc-head .chapter__lead {
  margin: .85rem 0 0;
  font-size: clamp(.95rem, 1.4vw, 1.02rem);
  line-height: 1.9;
  color: var(--pc-ink-soft);
}

.page-contact .pc-head--dark .chapter__index {
  color: var(--signal);
}

.page-contact .pc-head--dark .chapter__title {
  color: #fff;
}

.page-contact .pc-head--dark .chapter__lead {
  color: rgba(244, 247, 245, .78);
}

/* ---------- 合作方向标签页 ---------- */
.page-contact .pc-tabs {
  display: grid;
  gap: 1.25rem;
}

.page-contact .pc-tabs__list {
  display: flex;
  gap: .5rem;
  overflow-x: auto;
  padding-bottom: .35rem;
  scrollbar-width: thin;
}

.page-contact .pc-tabs__list .tab {
  flex: none;
  display: flex;
  flex-direction: column;
  gap: .18rem;
  align-items: flex-start;
  min-width: 152px;
  padding: .8rem 1rem;
  border: 1px solid var(--pc-line-light);
  border-left: 3px solid transparent;
  background: #fff;
  color: var(--pc-ink);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: .95rem;
  text-align: left;
  cursor: pointer;
  transition: border-color .2s ease, background .22s ease, color .2s ease;
}

.page-contact .pc-tabs__list .tab:hover {
  border-color: rgba(11, 61, 46, .35);
}

.page-contact .pc-tabs__list .tab:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .pc-tabs__list .tab[aria-selected="true"] {
  border-color: var(--signal);
  border-left-color: var(--signal);
  background: linear-gradient(180deg, rgba(61, 220, 132, .16), rgba(61, 220, 132, .04));
}

.page-contact .pc-tab__sub {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: .72rem;
  color: var(--neutral);
}

.page-contact .pc-tabs__list .tab[aria-selected="true"] .pc-tab__sub {
  color: #2C6B4E;
}

.page-contact .pc-panel {
  background: #fff;
  border: 1px solid var(--pc-line-light);
  border-top: 3px solid var(--signal);
  padding: clamp(1.35rem, 3vw, 2.2rem);
  box-shadow: 0 18px 40px -34px rgba(6, 26, 18, .6);
}

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

.page-contact .pc-panel h3 {
  font-weight: 800;
  font-size: clamp(1.12rem, 2vw, 1.4rem);
  line-height: 1.4;
  margin: 0 0 .7rem;
  color: var(--pc-ink);
}

.page-contact .pc-panel__text {
  margin: 0;
  font-size: .96rem;
  line-height: 1.9;
  color: var(--pc-ink-soft);
}

.page-contact .pc-list {
  list-style: none;
  margin: 1.1rem 0 0;
  padding: 0;
  display: grid;
  gap: .6rem;
}

.page-contact .pc-list li {
  position: relative;
  padding-left: 1.3rem;
  font-size: .93rem;
  line-height: 1.75;
  color: var(--pc-ink-soft);
}

.page-contact .pc-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: .55rem;
  height: .55rem;
  background: var(--signal);
  transform: skewX(-14deg);
}

.page-contact .pc-fit {
  margin: 1.25rem 0 0;
  padding-top: .9rem;
  border-top: 1px dashed var(--pc-line-light);
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .04em;
  color: var(--turf);
}

/* ---------- 图片 ---------- */
.page-contact .pc-figure {
  margin: clamp(1.75rem, 4vw, 2.75rem) 0 0;
  width: 100%;
}

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

.page-contact .pc-figure--turf {
  margin: 0;
}

/* ---------- 流程 ---------- */
.page-contact .pc-flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.5rem;
}

.page-contact .pc-flow__item {
  position: relative;
  border-top: 2px solid var(--pc-line-light);
  padding-top: 1.15rem;
}

.page-contact .pc-flow__item::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 0;
  width: 9px;
  height: 9px;
  background: var(--cyan);
  transform: skewX(-14deg);
}

.page-contact .pc-flow__num {
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .18em;
  color: var(--turf);
}

.page-contact .pc-flow__title {
  font-weight: 800;
  font-size: 1.05rem;
  margin: .45rem 0 .5rem;
  color: var(--pc-ink);
}

.page-contact .pc-flow__text {
  margin: 0;
  font-size: .92rem;
  line-height: 1.8;
  color: var(--pc-ink-soft);
}

/* ---------- 联系与资料 ---------- */
.page-contact .pc-channels {
  display: grid;
  gap: 1rem;
}

.page-contact .pc-channel {
  border: 1px solid rgba(61, 220, 132, .24);
  background: rgba(7, 26, 43, .58);
  padding: clamp(1.15rem, 3vw, 1.6rem);
  transition: border-color .2s ease;
}

.page-contact .pc-channel:hover {
  border-color: var(--cyan);
}

.page-contact .pc-channel__k {
  margin: 0 0 .5rem;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .16em;
  color: var(--signal);
}

.page-contact .pc-channel__v {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 1rem;
  line-height: 1.5;
  color: #fff;
  word-break: break-word;
}

.page-contact .pc-channel__v a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(25, 227, 209, .4);
}

.page-contact .pc-channel__v a:hover {
  color: #fff;
  border-bottom-color: #fff;
}

.page-contact .pc-channel__note {
  margin: .8rem 0 0;
  font-size: .88rem;
  line-height: 1.8;
  color: rgba(244, 247, 245, .74);
}

.page-contact .pc-channel--wide {
  display: grid;
  gap: 1.25rem;
}

/* ---------- 常见问题 ---------- */
.page-contact .pc-faqs {
  display: grid;
  gap: .75rem;
}

.page-contact .pc-faq {
  background: #fff;
  border: 1px solid var(--pc-line-light);
}

.page-contact .pc-faq summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.2rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--pc-ink);
}

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

.page-contact .pc-faq summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  color: var(--turf);
}

.page-contact .pc-faq[open] summary::after {
  content: "–";
  color: var(--signal);
}

.page-contact .pc-faq[open] summary {
  border-bottom: 1px solid var(--pc-line-light);
}

.page-contact .pc-faq summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-contact .pc-faq p {
  margin: 0;
  padding: 1rem 1.2rem 1.15rem;
  font-size: .94rem;
  line-height: 1.85;
  color: var(--pc-ink-soft);
}

/* ---------- 留言区 ---------- */
.page-contact .pc-enquiry {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  align-items: start;
}

.page-contact .pc-formgrid {
  display: grid;
  gap: 1rem;
}

.page-contact .pc-field {
  display: flex;
  flex-direction: column;
  gap: .45rem;
}

.page-contact .pc-field__label {
  font-family: var(--font-mono);
  font-size: .73rem;
  letter-spacing: .12em;
  color: var(--neutral);
}

.page-contact .pc-field input,
.page-contact .pc-field select,
.page-contact .pc-field textarea {
  width: 100%;
  box-sizing: border-box;
  background: rgba(244, 247, 245, .05);
  border: 1px solid rgba(148, 163, 184, .3);
  border-radius: var(--radius);
  color: var(--mist);
  font-family: var(--font-body);
  font-size: .95rem;
  padding: .7rem .85rem;
  transition: border-color .2s ease, background .2s ease;
}

.page-contact .pc-field textarea {
  resize: vertical;
  line-height: 1.7;
}

.page-contact .pc-field input::placeholder,
.page-contact .pc-field textarea::placeholder {
  color: rgba(148, 163, 184, .75);
}

.page-contact .pc-field input:focus,
.page-contact .pc-field select:focus,
.page-contact .pc-field textarea:focus {
  outline: none;
  border-color: var(--cyan);
  background: rgba(25, 227, 209, .07);
}

.page-contact .pc-enquiry__side {
  border-left: 2px solid var(--signal);
  padding-left: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: .9rem;
}

.page-contact .pc-enquiry__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.05rem;
  color: #fff;
}

.page-contact .pc-enquiry__text {
  margin: 0;
  font-size: .93rem;
  line-height: 1.85;
  color: rgba(244, 247, 245, .8);
  word-break: break-word;
}

.page-contact .pc-enquiry__note {
  margin: 0;
  font-size: .84rem;
  line-height: 1.8;
  color: rgba(244, 247, 245, .6);
}

.page-contact .pc-enquiry__note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(25, 227, 209, .4);
}

.page-contact .pc-enquiry__note a:hover {
  color: #fff;
  border-bottom-color: #fff;
}

.page-contact .pc-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-contact .pc-formgrid {
    grid-template-columns: 1fr 1fr;
  }

  .page-contact .pc-field--full {
    grid-column: span 2;
  }
}

@media (min-width: 860px) {
  .page-contact .pc-hero__grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(280px, .85fr);
    gap: clamp(2rem, 4vw, 4rem);
  }

  .page-contact .pc-tabs {
    grid-template-columns: minmax(220px, 258px) minmax(0, 1fr);
    gap: clamp(1.5rem, 3vw, 3rem);
  }

  .page-contact .pc-tabs__list {
    flex-direction: column;
    overflow: visible;
    gap: 0;
    padding-bottom: 0;
  }

  .page-contact .pc-tabs__list .tab {
    min-width: 0;
    width: 100%;
    border: 0;
    border-left: 3px solid transparent;
    background: transparent;
    padding: .85rem 1rem;
  }

  .page-contact .pc-tabs__list .tab + .tab {
    border-top: 1px solid var(--pc-line-light);
  }

  .page-contact .pc-tabs__list .tab[aria-selected="true"] {
    border-left-color: var(--signal);
    background: linear-gradient(90deg, rgba(61, 220, 132, .16), rgba(61, 220, 132, 0));
  }

  .page-contact .pc-flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.5rem;
  }

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

  .page-contact .pc-channel--wide {
    grid-column: span 3;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: center;
    gap: clamp(1.25rem, 3vw, 2.25rem);
  }

  .page-contact .pc-enquiry {
    grid-template-columns: minmax(0, 1.4fr) minmax(260px, .8fr);
  }
}

@media (max-width: 620px) {
  .page-contact .pc-quick__row dd {
    font-size: .88rem;
  }

  .page-contact .pc-enquiry__side {
    border-left-width: 2px;
    padding-left: 1rem;
  }

  .page-contact .pc-actions .btn {
    width: 100%;
    text-align: center;
  }
}