.page-contact {
  --pc-pad-y: clamp(38px, 5.5vw, 76px);
  --pc-gap: clamp(14px, 2.2vw, 20px);
  display: block;
  background:
    radial-gradient(120% 78% at 82% -8%, rgba(53, 242, 208, 0.07), transparent 62%),
    radial-gradient(90% 60% at 0% 30%, rgba(255, 122, 61, 0.05), transparent 60%),
    var(--ink-0);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  overflow-x: hidden;
}

.page-contact .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding-block: 18px 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--text-dim);
}

.page-contact .breadcrumb a {
  color: var(--text-dim);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-contact .breadcrumb [aria-current="page"] {
  color: var(--orange);
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  padding-block: clamp(26px, 4vw, 48px) var(--pc-pad-y);
}

.page-contact .pc-hero__grid {
  display: grid;
  gap: clamp(24px, 3.6vw, 48px);
}

.page-contact .pc-hero__title {
  margin: 14px 0 0;
  font-size: clamp(31px, 6.2vw, 60px);
  line-height: 1.06;
  letter-spacing: -0.035em;
  font-weight: 700;
  color: var(--paper);
}

.page-contact .pc-hero__lead {
  margin: 20px 0 0;
  max-width: 54ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--text-dim);
}

.page-contact .pc-quick {
  display: grid;
  gap: 10px;
  margin-top: clamp(22px, 3vw, 30px);
}

.page-contact .pc-quick__btn {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 15px 18px;
  background: var(--ink-1);
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  border-radius: var(--radius);
  text-decoration: none;
  min-width: 0;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .pc-quick__btn:hover,
.page-contact .pc-quick__btn:focus-visible {
  transform: translateY(-2px);
  border-color: var(--cyan);
  background: var(--ink-2);
}

.page-contact .pc-quick__btn--call {
  background: var(--orange);
  border-color: var(--orange);
  border-left-color: var(--paper);
}

.page-contact .pc-quick__btn--call:hover,
.page-contact .pc-quick__btn--call:focus-visible {
  background: #ff8c56;
  border-color: #ff8c56;
}

.page-contact .pc-quick__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--stone);
}

.page-contact .pc-quick__btn--call .pc-quick__label {
  color: rgba(7, 21, 35, 0.72);
}

.page-contact .pc-quick__value {
  font-size: clamp(17px, 2.4vw, 22px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .pc-quick__btn--call .pc-quick__value {
  color: var(--ink-0);
}

.page-contact .pc-quick__value--mail {
  font-size: clamp(13px, 1.7vw, 16px);
  font-weight: 600;
  letter-spacing: 0;
}

.page-contact .pc-hero__figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-1);
}

.page-contact .pc-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* ---------- 通用标题 ---------- */
.page-contact .pc-h2 {
  margin: 0 0 10px;
  font-size: clamp(22px, 3.2vw, 31px);
  line-height: 1.22;
  letter-spacing: -0.02em;
  font-weight: 700;
  color: var(--paper);
}

.page-contact .pc-sub {
  margin: 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-contact .pc-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .pc-tag::before {
  content: "";
  width: 16px;
  height: 2px;
  background: currentColor;
}

.page-contact .pc-tag--orange { color: var(--orange); }
.page-contact .pc-tag--moss { color: var(--moss); }

/* ---------- 渠道 + 响应流程 ---------- */
.page-contact .pc-channels {
  padding-block: var(--pc-pad-y);
  border-top: 1px solid var(--line-soft);
}

.page-contact .pc-channels__grid {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
}

.page-contact .pc-cards {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: var(--pc-gap);
}

.page-contact .pc-card {
  padding: 18px 20px 20px;
  background: var(--ink-1);
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  border-radius: var(--radius);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .pc-card:hover {
  background: var(--ink-2);
}

.page-contact .pc-card--orange { border-left-color: var(--orange); }
.page-contact .pc-card--moss { border-left-color: var(--moss); }

.page-contact .pc-card__title {
  margin: 0 0 6px;
  font-size: clamp(16px, 2vw, 19px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .pc-card__link {
  display: inline-block;
  margin-bottom: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 242, 208, 0.4);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .pc-card__link--orange {
  color: var(--orange);
  border-bottom-color: rgba(255, 122, 61, 0.45);
}

.page-contact .pc-card__link:hover,
.page-contact .pc-card__link:focus-visible {
  border-bottom-color: currentColor;
}

.page-contact .pc-card__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}

/* 侧边流程 */
.page-contact .pc-flow {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--ink-1), rgba(7, 21, 35, 0.92));
  overflow: hidden;
  align-self: start;
}

.page-contact .pc-map {
  display: block;
  width: 100%;
  height: auto;
  border-bottom: 1px solid var(--line);
  background: var(--ink-0);
}

.page-contact .pc-map__dot {
  animation: pc-dot-blink 2.4s var(--ease) infinite;
}

.page-contact .pc-map__dot--b {
  animation-delay: 0.7s;
}

@keyframes pc-dot-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.page-contact .pc-flow__body {
  padding: 18px 16px 20px;
}

.page-contact .pc-flow__title {
  margin: 0 0 12px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-contact .pc-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-contact .pc-step {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 12px;
  padding: 11px 10px 11px 10px;
  border-left: 2px solid var(--line);
  transition: background var(--dur) var(--ease), border-left-color var(--dur) var(--ease);
}

.page-contact .pc-step:hover,
.page-contact .pc-step:focus-within {
  background: rgba(53, 242, 208, 0.06);
  border-left-color: var(--orange);
}

.page-contact .pc-step__no {
  font-size: 12px;
  color: var(--cyan);
  padding-top: 3px;
}

.page-contact .pc-step__title {
  margin: 0 0 2px;
  font-size: 14px;
  font-weight: 600;
  color: var(--paper);
}

.page-contact .pc-step__text {
  margin: 0;
  font-size: 13px;
  line-height: 1.68;
  color: var(--text-dim);
}

/* ---------- 反馈准备 ---------- */
.page-contact .pc-prep {
  padding-block: var(--pc-pad-y);
  border-top: 1px solid var(--line-soft);
}

.page-contact .pc-prep__grid {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
}

.page-contact .pc-hours {
  margin: 8px 0 8px;
  font-size: clamp(34px, 6vw, 54px);
  line-height: 1;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--cyan);
}

.page-contact .pc-hours__note {
  margin: 0;
  max-width: 34ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-contact .pc-prep__list .pc-sub {
  margin-bottom: 18px;
}

.page-contact .pc-details {
  background: var(--ink-1);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 10px;
  overflow: hidden;
}

.page-contact .pc-details > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 600;
  color: var(--paper);
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}

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

.page-contact .pc-details > summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
}

.page-contact .pc-details[open] > summary::after {
  content: "\2013";
}

.page-contact .pc-details > summary:hover,
.page-contact .pc-details > summary:focus-visible {
  background: var(--ink-2);
}

.page-contact .pc-details__body {
  padding: 0 16px 16px;
  border-top: 1px solid var(--line-soft);
}

.page-contact .pc-bullets {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .pc-bullets li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--text-dim);
}

.page-contact .pc-bullets li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.66em;
  width: 7px;
  height: 7px;
  border: 1px solid var(--cyan);
  transform: rotate(45deg);
}

.page-contact .pc-bullets a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 242, 208, 0.4);
}

.page-contact .pc-bullets a:hover,
.page-contact .pc-bullets a:focus-visible {
  border-bottom-color: var(--cyan);
}

/* ---------- 合作咨询 ---------- */
.page-contact .pc-collab {
  padding-block: var(--pc-pad-y);
  border-top: 1px solid var(--line-soft);
}

.page-contact .pc-collab__panel {
  position: relative;
  padding: clamp(20px, 3.4vw, 40px);
  background:
    linear-gradient(150deg, rgba(182, 106, 74, 0.14), transparent 46%),
    var(--ink-1);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .pc-collab__panel::after {
  content: "";
  position: absolute;
  right: -40px;
  top: -40px;
  width: 160px;
  height: 160px;
  border: 1px solid var(--line);
  transform: rotate(45deg);
  pointer-events: none;
}

.page-contact .pc-collab__grid {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: var(--pc-gap);
}

.page-contact .pc-collab__item {
  padding: 16px 18px;
  background: rgba(7, 21, 35, 0.55);
  border-top: 2px solid var(--clay);
  border-radius: var(--radius);
}

.page-contact .pc-collab__item h3 {
  margin: 0 0 6px;
  font-size: 15px;
  font-weight: 600;
  color: var(--paper);
}

.page-contact .pc-collab__item p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--text-dim);
}

.page-contact .pc-collab__action {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin: 22px 0 0;
}

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

/* ---------- 地址与备案 ---------- */
.page-contact .pc-visit {
  padding-block: var(--pc-pad-y);
  border-top: 1px solid var(--line-soft);
}

.page-contact .pc-visit__grid {
  display: grid;
  gap: clamp(22px, 3.4vw, 44px);
}

.page-contact .pc-visit__figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-1);
}

.page-contact .pc-visit__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
}

.page-contact .pc-facts {
  margin: 20px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .pc-fact {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 12px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .pc-fact dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--stone);
  padding-top: 3px;
}

.page-contact .pc-fact dd {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .pc-fact__mail {
  font-size: 13.5px !important;
  font-weight: 500 !important;
  color: var(--cyan) !important;
}

.page-contact .pc-visit__note {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--text-dim);
}

.page-contact .pc-visit__note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 242, 208, 0.4);
}

.page-contact .pc-visit__note a:hover,
.page-contact .pc-visit__note a:focus-visible {
  border-bottom-color: var(--cyan);
}

/* ---------- 收尾 ---------- */
.page-contact .pc-tail {
  padding-block: clamp(34px, 4.6vw, 62px);
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, transparent, rgba(12, 34, 56, 0.6));
}

.page-contact .pc-tail__inner {
  border-left: 3px solid var(--orange);
  padding-left: clamp(16px, 2.4vw, 26px);
}

.page-contact .pc-tail__title {
  margin: 0 0 8px;
  font-size: clamp(21px, 2.8vw, 28px);
  line-height: 1.24;
  letter-spacing: -0.02em;
  font-weight: 700;
  color: var(--paper);
}

.page-contact .pc-tail__text {
  margin: 0;
  max-width: 58ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--text-dim);
}

.page-contact .pc-tail__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

/* ---------- 按钮 ---------- */
.page-contact .pc-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 18px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  color: var(--paper);
  background: transparent;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-contact .pc-btn--ghost:hover,
.page-contact .pc-btn--ghost:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
  transform: translateY(-1px);
}

.page-contact .pc-btn--primary {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--ink-0);
}

.page-contact .pc-btn--primary:hover,
.page-contact .pc-btn--primary:focus-visible {
  background: #ff8c56;
  border-color: #ff8c56;
  transform: translateY(-1px);
}

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

/* ---------- 媒体查询 ---------- */
@media (min-width: 560px) {
  .page-contact .pc-quick {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 760px) {
  .page-contact .pc-prep__grid {
    grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
    align-items: start;
  }

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

@media (min-width: 900px) {
  .page-contact .pc-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 1fr);
    align-items: end;
  }

  .page-contact .pc-visit__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    align-items: center;
  }
}

@media (min-width: 980px) {
  .page-contact .pc-channels__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .pc-flow {
    position: sticky;
    top: calc(var(--header-line) + 20px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-map__dot,
  .page-contact .pc-map__dot--b {
    animation: none;
  }

  .page-contact .pc-quick__btn:hover,
  .page-contact .pc-btn:hover {
    transform: none;
  }
}