.page-contact {
  background: var(--ink-900);
  color: var(--cream);
  font-family: var(--font-body);
  line-height: 1.75;
  overflow-x: hidden;
}

.page-contact .pc-wrap {
  width: 100%;
  max-width: var(--shell-max);
  margin-inline: auto;
  padding-inline: 20px;
}

.page-contact h1,
.page-contact h2,
.page-contact h3 {
  font-family: var(--font-display);
  letter-spacing: -0.01em;
  line-height: 1.2;
  margin: 0;
}

.page-contact p {
  margin: 0;
}

.page-contact .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: 22px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--teal);
}

.page-contact .breadcrumbs a {
  color: var(--gold-soft);
  text-decoration: none;
}

.page-contact .breadcrumbs a:hover {
  color: var(--gold);
}

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

.page-contact .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-contact .eyebrow::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--gold);
  display: block;
}

/* ---------- 首屏 ---------- */

.page-contact .contact-intro {
  position: relative;
  overflow: hidden;
  background: var(--ink-900);
  padding-bottom: 52px;
}

.page-contact .contact-intro::after {
  content: "";
  position: absolute;
  top: -70px;
  right: -20%;
  width: 64%;
  height: 250px;
  background: linear-gradient(120deg, rgba(201, 145, 63, 0), rgba(201, 145, 63, 0.22));
  transform: skewY(-6deg);
  pointer-events: none;
}

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

.page-contact .intro-grid {
  display: grid;
  gap: 32px;
  padding-top: 26px;
}

.page-contact .intro-copy h1 {
  margin-top: 16px;
  font-size: clamp(30px, 6.4vw, 54px);
  font-weight: 900;
}

.page-contact .intro-copy .lead {
  margin-top: 20px;
  max-width: 34em;
  font-size: 16px;
  color: var(--mist);
}

.page-contact .quick-flags {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .quick-flags li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  padding-left: 14px;
  border-left: 2px solid var(--line-strong);
  font-size: 14px;
  color: var(--cream);
}

.page-contact .quick-flags .k8-num {
  color: var(--gold-soft);
  font-size: 11.5px;
}

.page-contact .intro-figure {
  margin: 0;
  border-radius: var(--radius);
  box-shadow: 14px 14px 0 -1px rgba(201, 145, 63, 0.18);
}

.page-contact .intro-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  object-fit: cover;
}

.page-contact .intro-figure figcaption {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--teal);
}

/* ---------- 三条通路 ---------- */

.page-contact .contact-channels {
  background: var(--paper);
  color: var(--charcoal);
  padding-block: 52px;
}

.page-contact .contact-channels .eyebrow {
  color: var(--brick);
}

.page-contact .contact-channels .eyebrow::before {
  background: var(--brick);
}

.page-contact .section-head {
  max-width: 46em;
  margin-bottom: 30px;
}

.page-contact .section-head h2 {
  margin-top: 12px;
  font-size: clamp(24px, 4.4vw, 34px);
}

.page-contact .section-head p {
  margin-top: 12px;
  font-size: 15px;
  opacity: 0.82;
}

.page-contact .channel-row {
  display: grid;
  gap: 22px;
}

.page-contact .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 26px 22px 22px;
  background: var(--cream);
  color: var(--charcoal);
  border-radius: var(--radius);
  border-top: 4px solid var(--gold);
  box-shadow: 0 18px 34px -26px rgba(11, 27, 43, 0.9);
  transition: transform 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.page-contact .channel-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 26px 42px -28px rgba(11, 27, 43, 0.95);
}

.page-contact .channel-card__no {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--brick);
}

.page-contact .channel-card h3 {
  font-size: 22px;
}

.page-contact .channel-card__fit {
  font-size: 14px;
  color: var(--charcoal);
  opacity: 0.74;
}

.page-contact .channel-card__value {
  margin-top: 4px;
  padding-top: 12px;
  border-top: 1px dashed var(--line-ink);
  font-family: var(--font-mono);
  font-size: 14.5px;
  letter-spacing: 0.02em;
  color: var(--ink-900);
  word-break: break-word;
}

.page-contact .copy-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: auto;
  padding-top: 6px;
}

.page-contact .copy-btn {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  padding: 9px 18px;
  border-radius: 999px;
  border: 1px solid var(--gold);
  background: transparent;
  color: var(--ink-900);
  cursor: pointer;
  transition: background 0.18s var(--ease), color 0.18s var(--ease);
}

.page-contact .copy-btn:hover {
  background: var(--gold);
}

.page-contact .copy-btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.page-contact .copy-btn.is-copied {
  background: var(--gold);
}

.page-contact .copy-feedback {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--brick);
  min-height: 1em;
}

/* ---------- 问题归类 ---------- */

.page-contact .contact-route {
  background: var(--ink-900);
  color: var(--cream);
  padding-block: 52px;
}

.page-contact .contact-route .section-head p {
  color: var(--mist);
}

.page-contact .filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 26px;
}

.page-contact .filter-btn {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--cream);
  cursor: pointer;
  transition: background 0.18s var(--ease), color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-contact .filter-btn:hover {
  border-color: var(--gold-soft);
}

.page-contact .filter-btn[aria-pressed="true"] {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink-900);
}

.page-contact .filter-btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.page-contact .filter-count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--teal);
}

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

.page-contact .prep-item {
  background: var(--ink-700);
  border-left: 3px solid var(--gold);
  border-radius: var(--radius);
  padding: 22px 20px;
}

.page-contact .prep-item h3 {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  font-size: 19px;
}

.page-contact .prep-item h3 span {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--gold-soft);
}

.page-contact .prep-item ul {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-contact .prep-item li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  color: var(--mist);
}

.page-contact .prep-item li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 8px;
  border: 1px solid var(--gold-soft);
  border-radius: 2px;
}

/* ---------- 来信准备 ---------- */

.page-contact .contact-prepare {
  background: var(--paper);
  color: var(--charcoal);
  padding-block: 52px;
}

.page-contact .contact-prepare .eyebrow {
  color: var(--brick);
}

.page-contact .contact-prepare .eyebrow::before {
  background: var(--brick);
}

.page-contact .prepare-grid {
  display: grid;
  gap: 32px;
}

.page-contact .prepare-copy h2 {
  margin-top: 12px;
  font-size: clamp(24px, 4.4vw, 34px);
}

.page-contact .prepare-lead {
  margin-top: 14px;
  max-width: 40em;
  font-size: 15px;
  color: var(--charcoal);
  opacity: 0.82;
}

.page-contact .check-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .check-item {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 14px;
  background: var(--mist);
  border-radius: 10px;
  font-size: 14.5px;
  color: var(--charcoal);
  cursor: pointer;
  transition: background 0.16s var(--ease);
}

.page-contact .check-item:hover {
  background: var(--cream);
}

.page-contact .check-item:focus-within {
  box-shadow: var(--focus-ring);
}

.page-contact .check-item input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
}

.page-contact .check-box {
  flex: 0 0 18px;
  width: 18px;
  height: 18px;
  margin-top: 3px;
  border: 1px solid var(--line-ink);
  border-radius: 2px;
  background: var(--cream);
  position: relative;
  transition: background 0.16s var(--ease), border-color 0.16s var(--ease);
}

.page-contact .check-item input:checked + .check-box {
  background: var(--gold);
  border-color: var(--gold);
}

.page-contact .check-item input:checked + .check-box::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 10px;
  border-right: 2px solid var(--ink-900);
  border-bottom: 2px solid var(--ink-900);
  transform: rotate(40deg);
}

.page-contact .check-text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-contact .prepare-tip {
  margin-top: 18px;
  padding-left: 14px;
  border-left: 2px solid var(--brick);
  font-size: 13.5px;
  color: var(--brick);
}

.page-contact .prepare-figure {
  margin: 0;
}

.page-contact .prepare-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  object-fit: cover;
  box-shadow: 0 20px 40px -30px rgba(11, 27, 43, 0.9);
}

.page-contact .prepare-figure figcaption {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--charcoal);
  opacity: 0.6;
}

/* ---------- 回复时间 ---------- */

.page-contact .contact-close {
  background: var(--ink-900);
  color: var(--cream);
  padding-block: 52px 60px;
}

.page-contact .close-panel {
  position: relative;
  overflow: hidden;
  padding: 30px 22px;
  background: var(--ink-700);
  border-top: 4px solid var(--gold);
  border-radius: var(--radius);
}

.page-contact .close-panel::before {
  content: "";
  position: absolute;
  right: -12%;
  bottom: -34%;
  width: 54%;
  height: 180px;
  background: rgba(169, 80, 63, 0.18);
  transform: skewY(-6deg);
  pointer-events: none;
}

.page-contact .close-panel > * {
  position: relative;
  z-index: 1;
}

.page-contact .close-panel h2 {
  margin-top: 12px;
  font-size: clamp(23px, 4.2vw, 32px);
}

.page-contact .close-lead {
  margin-top: 12px;
  max-width: 42em;
  font-size: 15px;
  color: var(--mist);
}

.page-contact .close-grid {
  display: grid;
  gap: 18px;
  margin-top: 26px;
}

.page-contact .close-grid > div {
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.page-contact .close-grid .k8-num {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--gold-soft);
}

.page-contact .close-grid h3 {
  margin-top: 8px;
  font-size: 17px;
}

.page-contact .close-grid p {
  margin-top: 8px;
  font-size: 14.5px;
  color: var(--mist);
}

.page-contact .close-team {
  margin-top: 26px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  color: var(--mist);
}

.page-contact .close-links {
  margin-top: 18px;
  font-size: 14.5px;
  color: var(--mist);
}

.page-contact .close-links a {
  color: var(--gold-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  margin-inline: 2px;
}

.page-contact .close-links a:hover {
  border-bottom-color: var(--gold-soft);
}

/* ---------- 响应式 ---------- */

@media (min-width: 760px) {
  .page-contact .contact-channels,
  .page-contact .contact-route,
  .page-contact .contact-prepare,
  .page-contact .contact-close {
    padding-block: 68px;
  }

  .page-contact .channel-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
    gap: 24px;
  }

  .page-contact .channel-card:nth-child(1) {
    min-height: 306px;
  }

  .page-contact .channel-card:nth-child(2) {
    min-height: 276px;
    margin-top: 26px;
  }

  .page-contact .channel-card:nth-child(3) {
    min-height: 246px;
    margin-top: 52px;
  }

  .page-contact .close-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }

  .page-contact .close-panel {
    padding: 38px 34px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-intro {
    padding-bottom: 72px;
  }

  .page-contact .intro-grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: start;
    gap: 52px;
    padding-top: 34px;
  }

  .page-contact .intro-figure {
    margin-top: 18px;
  }

  .page-contact .prepare-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: start;
    gap: 52px;
  }

  .page-contact .prepare-figure {
    margin-top: 30px;
  }

  .page-contact .prep-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }

  .page-contact .prep-item {
    padding: 26px 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .copy-btn,
  .page-contact .filter-btn,
  .page-contact .check-item,
  .page-contact .check-box {
    transition: none;
  }

  .page-contact .channel-card:hover {
    transform: none;
  }
}