.page-contact {
  --pc-line: rgba(94, 106, 114, 0.45);
  --pc-line-strong: rgba(241, 235, 221, 0.18);
  --pc-body: rgba(241, 235, 221, 0.78);
  --pc-faint: rgba(241, 235, 221, 0.58);
  background: var(--ink);
  color: var(--bone);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.8;
  overflow-x: hidden;
}

.page-contact h1,
.page-contact h2,
.page-contact h3 {
  font-family: var(--font-title);
  margin: 0;
  line-height: 1.22;
}

.page-contact p {
  margin: 0;
}

.page-contact .shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

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

/* 面包屑 */
.page-contact .pc-crumb {
  padding-top: 18px;
}

.page-contact .pc-crumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--pc-faint);
}

.page-contact .pc-crumb a {
  color: var(--pc-faint);
  text-decoration: none;
  transition: color 0.18s var(--ease);
}

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

.page-contact .pc-crumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--pc-line-strong);
}

/* 首屏 */
.page-contact .pc-hero {
  position: relative;
  padding: 26px 0 46px;
  border-bottom: 1px solid var(--pc-line-strong);
  background:
    radial-gradient(120% 90% at 8% 0%, rgba(53, 197, 192, 0.14), transparent 56%),
    radial-gradient(80% 70% at 96% 6%, rgba(217, 154, 43, 0.16), transparent 62%);
}

.page-contact .pc-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(94, 106, 114, 0.16) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(94, 106, 114, 0.16) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: 0.7;
}

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

.page-contact .pc-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

.page-contact .pc-eyebrow {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--amber);
}

.page-contact .pc-hero h1 {
  font-size: clamp(34px, 7vw, 64px);
  font-weight: 900;
  letter-spacing: -0.02em;
  max-width: 15em;
}

.page-contact .pc-lede {
  margin-top: 18px;
  max-width: 40ch;
  font-size: 16px;
  color: var(--pc-body);
}

/* 准备清单 */
.page-contact .prep-card {
  margin-top: 26px;
  padding: 18px 16px 20px;
  background: var(--ink-2);
  border: 2px solid var(--bone);
  box-shadow: var(--shadow-hard);
}

.page-contact .prep-card__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--pc-line-strong);
}

.page-contact .prep-card__title {
  font-size: 17px;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.page-contact .prep-card__count {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--amber);
}

.page-contact .prep-list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .prep-item {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 11px 12px;
  border: 1px solid var(--pc-line);
  background: rgba(11, 27, 43, 0.55);
  cursor: pointer;
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-contact .prep-item:hover {
  border-color: var(--cyan);
}

.page-contact .prep-item input {
  appearance: none;
  -webkit-appearance: none;
  position: relative;
  width: 18px;
  height: 18px;
  margin: 5px 0 0;
  border: 1.5px solid var(--stone);
  background: transparent;
  cursor: pointer;
  transition: background 0.15s var(--ease), border-color 0.15s var(--ease);
}

.page-contact .prep-item input:checked {
  background: var(--green);
  border-color: var(--green);
}

.page-contact .prep-item input:checked::after {
  content: "✓";
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-size: 12px;
  font-weight: 900;
  color: var(--ink);
}

.page-contact .prep-item:focus-within {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .prep-item__body {
  display: block;
  min-width: 0;
}

.page-contact .prep-item__name {
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: var(--bone);
}

.page-contact .prep-item__hint {
  display: block;
  margin-top: 2px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--pc-faint);
}

.page-contact .pc-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-contact .copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 18px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  color: var(--bone);
  background: transparent;
  border: 1px solid var(--cyan);
  cursor: pointer;
  transition: transform 0.18s var(--ease), background 0.18s var(--ease), color 0.18s var(--ease);
}

.page-contact .copy-btn:hover {
  transform: translateY(-2px);
  background: var(--cyan);
  color: var(--ink);
}

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

/* 首屏动线 */
.page-contact .pc-hero__flow {
  border: 1px solid var(--pc-line);
  background: rgba(18, 40, 61, 0.72);
  padding: 14px;
  box-shadow: var(--shadow-soft);
}

.page-contact .pc-flow__figure {
  margin: 0;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--pc-line-strong);
  background:
    linear-gradient(rgba(11, 27, 43, 0.35), rgba(11, 27, 43, 0.35)),
    repeating-linear-gradient(45deg, rgba(94, 106, 114, 0.14) 0 1px, transparent 1px 12px);
}

.page-contact .pc-flow__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.85);
  mix-blend-mode: luminosity;
  opacity: 0.92;
}

.page-contact .pc-flow__caption {
  position: absolute;
  left: 10px;
  bottom: 8px;
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--cyan);
  background: rgba(11, 27, 43, 0.78);
  padding: 2px 6px;
}

.page-contact .pc-flow__steps {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-contact .pc-flow__steps li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 10px;
  font-size: 13.5px;
  color: var(--pc-body);
  border-left: 2px solid var(--pc-line);
  background: rgba(11, 27, 43, 0.4);
}

.page-contact .pc-flow__steps li span {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--amber);
}

/* 章节通用 */
.page-contact .pc-section {
  padding-block: 44px;
  border-bottom: 1px solid var(--pc-line-strong);
}

.page-contact .pc-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  margin-bottom: 26px;
}

.page-contact .pc-index {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--amber);
  padding-top: 8px;
  border-top: 2px solid var(--amber);
}

.page-contact .pc-title {
  font-size: clamp(23px, 4.4vw, 36px);
  font-weight: 900;
  letter-spacing: -0.01em;
}

.page-contact .pc-sub {
  margin-top: 10px;
  max-width: 54ch;
  font-size: 15px;
  color: var(--pc-body);
}

/* 01 渠道 */
.page-contact .pc-channels {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-contact .pc-channel {
  position: relative;
  padding: 20px 18px;
  background: var(--ink-2);
  border: 1px solid var(--pc-line);
  transition: transform 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-contact .pc-channel:hover {
  transform: translateY(-2px);
}

.page-contact .pc-channel::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 3px;
  background: var(--stone);
}

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

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

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

.page-contact .pc-channel__label {
  margin-top: 14px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--pc-faint);
}

.page-contact .pc-channel__value {
  margin-top: 6px;
  font-size: clamp(22px, 4.6vw, 32px);
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--bone);
  word-break: break-word;
}

.page-contact .pc-channel__value--mail {
  font-size: clamp(15px, 2.6vw, 19px);
  word-break: break-all;
  letter-spacing: 0;
}

.page-contact .pc-channel__value--addr {
  font-family: var(--font-title);
  font-size: 18px;
  font-weight: 800;
  line-height: 1.5;
}

.page-contact .pc-channel .copy-btn {
  margin-top: 14px;
}

.page-contact .pc-channel__note {
  margin-top: 12px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--pc-faint);
}

/* 02 导出 */
.page-contact .pc-section--export {
  background: linear-gradient(180deg, rgba(18, 40, 61, 0.55), transparent 70%);
}

.page-contact .pc-export {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
}

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

.page-contact .pc-step {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
  border-top: 1px solid var(--pc-line-strong);
}

.page-contact .pc-step:last-child {
  border-bottom: 1px solid var(--pc-line-strong);
}

.page-contact .pc-step__num {
  font-size: 15px;
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: 0.08em;
}

.page-contact .pc-step h3 {
  font-size: 17px;
  font-weight: 800;
  color: var(--bone);
}

.page-contact .pc-step p {
  margin-top: 6px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--pc-body);
}

.page-contact .pc-export__panel {
  padding: 20px 18px;
  background: var(--ink-2);
  border: 2px solid var(--bone);
  box-shadow: var(--shadow-hard);
}

.page-contact .pc-export__title {
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--amber);
}

.page-contact .pc-spec {
  margin: 14px 0 0;
  padding: 0;
}

.page-contact .pc-spec__row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 6px 14px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--pc-line);
}

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

.page-contact .pc-spec dt {
  font-size: 13px;
  color: var(--pc-faint);
}

.page-contact .pc-spec dd {
  margin: 0;
  font-size: 14px;
  font-weight: 700;
  color: var(--cyan);
}

.page-contact .pc-export__foot {
  margin-top: 14px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--pc-faint);
}

.page-contact .pc-export__foot a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 03 加急 */
.page-contact .pc-section--urgent {
  background:
    radial-gradient(90% 120% at 100% 0%, rgba(224, 122, 63, 0.14), transparent 62%);
}

.page-contact .pc-urgent {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
}

.page-contact .pc-urgent__card {
  padding: 22px 18px;
  background: rgba(18, 40, 61, 0.85);
  border: 2px solid var(--orange);
  box-shadow: 6px 6px 0 rgba(224, 122, 63, 0.28);
}

.page-contact .pc-urgent__title {
  margin-top: 14px;
  font-size: 20px;
  font-weight: 900;
}

.page-contact .pc-urgent__card p {
  margin-top: 10px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--pc-body);
}

.page-contact .pc-urgent__card .copy-btn {
  margin-top: 16px;
  border-color: var(--amber);
}

.page-contact .pc-urgent__card .copy-btn:hover {
  background: var(--amber);
}

.page-contact .pc-folds {
  align-self: start;
}

.page-contact .pc-fold {
  border: 1px solid var(--pc-line);
  background: rgba(11, 27, 43, 0.6);
}

.page-contact .pc-fold + .pc-fold {
  margin-top: 8px;
}

.page-contact .pc-fold > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  font-family: var(--font-title);
  font-size: 15px;
  font-weight: 700;
  color: var(--bone);
  cursor: pointer;
  list-style: none;
  transition: color 0.18s var(--ease);
}

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

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

.page-contact .pc-fold[open] > summary::after {
  content: "–";
}

.page-contact .pc-fold > summary:hover {
  color: var(--cyan);
}

.page-contact .pc-fold[open] {
  border-color: var(--pc-line-strong);
}

.page-contact .pc-fold__body {
  padding: 0 16px 16px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--pc-body);
}

/* 04 地址 */
.page-contact .pc-addr {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  align-items: start;
}

.page-contact .pc-addr__label {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--clay);
}

.page-contact .pc-addr__value {
  margin-top: 8px;
  font-family: var(--font-title);
  font-size: clamp(19px, 3.4vw, 26px);
  font-weight: 900;
  line-height: 1.5;
  letter-spacing: -0.01em;
  color: var(--bone);
}

.page-contact .pc-addr__list {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .pc-addr__list li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--pc-body);
}

.page-contact .pc-addr__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 9px;
  height: 2px;
  background: var(--cyan);
}

.page-contact .pc-map {
  margin: 0;
  border: 1px solid var(--pc-line);
  background: rgba(18, 40, 61, 0.6);
  padding: 10px;
}

.page-contact .pc-map img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: grayscale(0.6) saturate(0.7);
  opacity: 0.9;
}

.page-contact .pc-map figcaption {
  margin-top: 8px;
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--pc-faint);
}

/* 05 相关入口 */
.page-contact .pc-section--more {
  border-bottom: 0;
  padding-bottom: 56px;
}

.page-contact .pc-more {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

.page-contact .pc-more a {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  text-decoration: none;
  background: rgba(18, 40, 61, 0.6);
  border: 1px solid var(--pc-line);
  border-left: 3px solid var(--cyan);
  transition: transform 0.18s var(--ease), background 0.18s var(--ease);
}

.page-contact .pc-more a:hover {
  transform: translateY(-2px);
  background: rgba(53, 197, 192, 0.12);
}

.page-contact .pc-more__title {
  font-family: var(--font-title);
  font-size: 16px;
  font-weight: 800;
  color: var(--bone);
}

.page-contact .pc-more__desc {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--pc-faint);
}

.page-contact .btn {
  text-decoration: none;
}

/* 平板 */
@media (min-width: 640px) {
  .page-contact .pc-more {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-contact .prep-card {
    padding: 22px 22px 24px;
  }

  .page-contact .pc-crumb {
    padding-top: 24px;
  }
}

/* 桌面 */
@media (min-width: 900px) {
  .page-contact .pc-hero {
    padding: 34px 0 64px;
  }

  .page-contact .pc-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 40px;
  }

  .page-contact .pc-section {
    padding-block: 62px;
  }

  .page-contact .pc-head {
    gap: 22px;
    margin-bottom: 34px;
  }

  .page-contact .pc-head > div {
    padding-left: 6px;
  }

  .page-contact .pc-channels {
    grid-template-columns: minmax(0, 5fr) minmax(0, 4fr) minmax(0, 3.4fr);
    gap: 16px;
  }

  .page-contact .pc-export {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 36px;
  }

  .page-contact .pc-urgent {
    grid-template-columns: minmax(0, 4fr) minmax(0, 6fr);
    gap: 30px;
    align-items: start;
  }

  .page-contact .pc-addr {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: 34px;
    align-items: center;
  }

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

  .page-contact .pc-urgent__card {
    padding: 28px 24px;
    position: sticky;
    top: 24px;
  }
}

@media (min-width: 1180px) {
  .page-contact .pc-hero h1 {
    font-size: clamp(52px, 5.2vw, 68px);
  }

  .page-contact .prep-list {
    gap: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-channel,
  .page-contact .pc-more a,
  .page-contact .copy-btn,
  .page-contact .pc-fold > summary {
    transition: none;
  }

  .page-contact .pc-channel:hover,
  .page-contact .pc-more a:hover,
  .page-contact .copy-btn:hover {
    transform: none;
  }
}