.page-contact {
  --pc-surface: rgba(11, 29, 51, 0.72);
  --pc-hair: rgba(234, 242, 255, 0.14);
  --pc-hair-strong: rgba(234, 242, 255, 0.28);
  --pc-glow-rose: radial-gradient(58% 62% at 84% 6%, rgba(255, 61, 127, 0.18), transparent 68%);
  --pc-glow-mint: radial-gradient(52% 58% at 4% 0%, rgba(95, 227, 195, 0.13), transparent 72%);
  background: var(--ink-900);
  color: var(--ice);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

.page-contact img {
  max-width: 100%;
  height: auto;
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  position: relative;
  padding-block: var(--space-3) var(--space-4);
  background-image: var(--pc-glow-mint), var(--pc-glow-rose);
  background-repeat: no-repeat;
  background-position: left top, right top;
}

.page-contact .pc-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-3);
  align-items: start;
}

.page-contact .pc-hero__lead {
  min-width: 0;
}

.page-contact .pc-hero h1 {
  margin: 14px 0 20px;
  max-width: 20ch;
  font-size: clamp(32px, 7vw, 66px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.025em;
  color: var(--ice);
}

.page-contact .pc-hero__intro {
  margin: 0 0 28px;
  max-width: 58ch;
  font-size: 16.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .pc-hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 22px;
}

.page-contact .pc-hero__link {
  color: var(--mint);
  font-size: 15px;
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(95, 227, 195, 0.5);
  transition: border-color var(--dur) var(--ease);
}

.page-contact .pc-hero__link:hover {
  border-bottom-color: var(--mint);
}

.page-contact .pc-hero__link:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 3px;
}

/* ---------- 联系信息卡 ---------- */
.page-contact .pc-card {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(22px, 3.2vw, 34px);
  border: 1px solid var(--pc-hair-strong);
  background: linear-gradient(158deg, rgba(18, 45, 74, 0.96), rgba(6, 16, 31, 0.98));
}

.page-contact .pc-card__texture {
  position: absolute;
  right: -16%;
  bottom: -22%;
  width: min(76%, 320px);
  height: auto;
  opacity: 0.2;
  mix-blend-mode: screen;
  pointer-events: none;
  z-index: 0;
}

.page-contact .pc-card__body {
  position: relative;
  z-index: 1;
  min-width: 0;
}

.page-contact .pc-card h2 {
  margin: 8px 0 20px;
  font-size: clamp(21px, 2.6vw, 29px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ice);
}

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

.page-contact .pc-info__row {
  display: grid;
  gap: 6px;
  padding: 15px 0;
  border-bottom: 1px dashed var(--pc-hair);
}

.page-contact .pc-info__row:first-child {
  padding-top: 0;
}

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

.page-contact .pc-info__key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-contact .pc-info__value {
  font-family: var(--font-mono);
  font-size: clamp(13px, 3.6vw, 15px);
  line-height: 1.6;
  color: var(--ice);
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
  user-select: all;
}

.page-contact .pc-info__value--mail {
  color: var(--mint);
}

.page-contact .pc-info__value--tel {
  letter-spacing: 0.05em;
}

.page-contact .pc-info__value--addr {
  font-family: var(--font-sans);
  font-size: 15px;
  user-select: auto;
}

.page-contact .pc-card__note {
  display: flex;
  gap: 9px;
  align-items: flex-start;
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--pc-hair);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .pc-card__note .status-dot {
  margin-top: 7px;
  flex: 0 0 auto;
}

/* ---------- 通用章节 ---------- */
.page-contact .pc-section {
  padding-block: var(--space-4);
  border-top: 1px solid var(--pc-hair);
}

.page-contact .pc-section__head {
  display: grid;
  gap: 12px;
  margin-bottom: var(--space-3);
  max-width: 66ch;
}

.page-contact .pc-section h2 {
  margin: 0;
  font-size: clamp(25px, 3.6vw, 40px);
  font-weight: 700;
  line-height: 1.16;
  letter-spacing: -0.015em;
  color: var(--ice);
}

.page-contact .pc-section__lead {
  margin: 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 反馈类型 ---------- */
.page-contact .pc-types {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-contact .pc-type {
  position: relative;
  min-width: 0;
  padding: 22px 20px 24px;
  background: var(--pc-surface);
  border: 1px solid var(--pc-hair);
  border-top: 2px solid var(--pc-type-accent, var(--pc-hair-strong));
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .pc-type--rose { --pc-type-accent: var(--rose); }
.page-contact .pc-type--mint { --pc-type-accent: var(--mint); }
.page-contact .pc-type--gold { --pc-type-accent: var(--gold); }

.page-contact .pc-type:hover {
  transform: translateY(-4px);
  border-color: var(--pc-hair-strong);
}

.page-contact .pc-type__num {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--pc-type-accent, var(--rose));
}

.page-contact .pc-type h3 {
  margin: 0 0 9px;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ice);
}

.page-contact .pc-type p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--mist);
}

.page-contact .pc-type__prep {
  margin: 0;
  padding-top: 13px;
  border-top: 1px dashed var(--pc-hair);
  font-size: 13.5px;
  line-height: 1.68;
  color: var(--mint-soft);
}

.page-contact .pc-type__prep span {
  display: inline-block;
  margin-right: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--mint);
}

/* ---------- 纠错要点 ---------- */
.page-contact .pc-checklist {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-contact .pc-check {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 12px;
  padding: 18px 18px 20px;
  background: linear-gradient(180deg, rgba(18, 45, 74, 0.62), rgba(6, 16, 31, 0.18));
  border-left: 2px solid var(--mint);
}

.page-contact .pc-check__idx {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--gold);
  padding-top: 3px;
}

.page-contact .pc-check__body {
  min-width: 0;
}

.page-contact .pc-check h3 {
  margin: 0 0 7px;
  font-size: 17px;
  font-weight: 700;
  color: var(--ice);
}

.page-contact .pc-check p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--mist);
}

/* ---------- 合作方向 ---------- */
.page-contact .pc-coop {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--pc-hair);
  border: 1px solid var(--pc-hair);
}

.page-contact .pc-coop__item {
  min-width: 0;
  padding: 24px 20px 26px;
  background: var(--ink-900);
}

.page-contact .pc-coop__tag {
  display: inline-block;
  margin-bottom: 12px;
  padding: 3px 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--gold);
  border: 1px solid rgba(232, 184, 109, 0.42);
}

.page-contact .pc-coop h3 {
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 700;
  color: var(--ice);
}

.page-contact .pc-coop p {
  margin: 0 0 14px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--mist);
}

.page-contact .pc-coop__need {
  margin: 0;
  padding-top: 12px;
  border-top: 1px dashed var(--pc-hair);
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--mint-soft);
}

/* ---------- 处理流程 ---------- */
.page-contact .pc-flow {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-3);
}

.page-contact .pc-flow__media {
  min-width: 0;
}

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

.page-contact .pc-flow__list {
  position: relative;
  margin: 0;
  padding: 0 0 0 28px;
  list-style: none;
}

.page-contact .pc-flow__list::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 12px;
  bottom: 24px;
  width: 1px;
  background: linear-gradient(180deg, var(--mint), var(--gold), rgba(232, 184, 109, 0));
}

.page-contact .pc-node {
  position: relative;
}

.page-contact .pc-node::before {
  content: "";
  position: absolute;
  left: -28px;
  top: 24px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 4px rgba(95, 227, 195, 0.14);
  transform: translateX(3px);
}

.page-contact .pc-node summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 17px 0;
  list-style: none;
  cursor: pointer;
  border-bottom: 1px solid var(--pc-hair);
}

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

.page-contact .pc-node summary:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 4px;
}

.page-contact .pc-node summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  color: var(--mint);
}

.page-contact details[open] summary::after {
  content: "−";
}

.page-contact .pc-node__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-contact .pc-node__title {
  font-size: 17px;
  font-weight: 700;
  color: var(--ice);
}

.page-contact .pc-node p {
  margin: 0;
  padding: 12px 0 18px;
  max-width: 60ch;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--mist);
}

/* ---------- 渠道分工 ---------- */
.page-contact .pc-channels {
  border-top: 1px solid var(--pc-hair);
}

.page-contact .pc-channel {
  display: grid;
  gap: 7px;
  padding: 18px 0;
  border-bottom: 1px solid var(--pc-hair);
}

.page-contact .pc-channel__name {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--mint);
}

.page-contact .pc-channel__text {
  margin: 0;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.76;
  color: var(--mist);
}

/* ---------- 延伸入口 ---------- */
.page-contact .pc-next {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 24px;
  margin-top: var(--space-3);
  padding: 20px 22px;
  border: 1px solid var(--pc-hair-strong);
  background: linear-gradient(118deg, rgba(255, 61, 127, 0.12), rgba(95, 227, 195, 0.08));
}

.page-contact .pc-next__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--rose-soft);
}

.page-contact .pc-next a {
  color: var(--ice);
  font-size: 14.5px;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .pc-next a:hover {
  color: var(--mint-soft);
  border-bottom-color: var(--mint);
}

.page-contact .pc-next a:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 680px) {
  .page-contact .pc-types {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-contact .pc-checklist {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
}

@media (min-width: 780px) {
  .page-contact .pc-coop {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .pc-channel {
    grid-template-columns: 168px minmax(0, 1fr);
    gap: 24px;
    align-items: baseline;
  }
}

@media (min-width: 960px) {
  .page-contact .pc-hero {
    padding-block: var(--space-4) var(--space-5);
  }

  .page-contact .pc-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    gap: var(--space-4);
  }

  .page-contact .pc-flow {
    grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr);
    gap: var(--space-4);
    align-items: start;
  }

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

  .page-contact .pc-section {
    padding-block: var(--space-5);
  }
}

@media (min-width: 1080px) {
  .page-contact .pc-types {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-type,
  .page-contact .pc-hero__link,
  .page-contact .pc-next a {
    transition: none;
  }

  .page-contact .pc-type:hover {
    transform: none;
  }
}