.page-contact {
  position: relative;
  isolation: isolate;
  overflow-x: hidden;
  color: var(--c-body);
  background:
    radial-gradient(120% 55% at 88% 0%, rgba(40, 240, 200, 0.09) 0%, transparent 62%),
    var(--c-carbon);
}

.page-contact::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    90deg,
    var(--line-soft) 0 1px,
    transparent 1px 88px
  );
  opacity: 0.6;
}

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

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumbs {
  padding: 18px 0 0;
  font-size: 12px;
  letter-spacing: 0.08em;
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  padding: 30px 0 42px;
  border-bottom: 1px solid var(--line);
}

.page-contact .pc-hero .eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--c-cyan);
  margin: 0 0 14px;
}

.page-contact .pc-hero-title {
  margin: 0 0 18px;
  font-size: clamp(28px, 6.2vw, 56px);
  line-height: 1.12;
  letter-spacing: -0.01em;
  font-weight: 800;
  color: var(--c-mist);
  max-width: 17em;
}

.page-contact .pc-hero-lede {
  margin: 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--c-body);
}

/* ---------- 章节骨架 ---------- */
.page-contact .pc-section {
  padding: 42px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .pc-section:last-of-type {
  border-bottom: 0;
}

.page-contact .pc-section .section-head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  margin: 0 0 24px;
}

.page-contact .section-index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--c-cyan);
}

.page-contact .section-title {
  margin: 0;
  font-size: clamp(21px, 3.4vw, 32px);
  line-height: 1.25;
  font-weight: 700;
  color: var(--c-mist);
}

.page-contact .section-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-neutral);
}

/* ---------- 01 渠道卡 ---------- */
.page-contact .pc-channels {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-contact .pc-channel {
  position: relative;
  padding: 22px 20px 20px;
  border: 1px solid var(--glass-line);
  border-radius: var(--radius);
  background: var(--glass);
  backdrop-filter: blur(6px);
  outline: none;
  transition:
    transform var(--t-fast) ease,
    background var(--t-base) ease,
    border-color var(--t-base) ease,
    box-shadow var(--t-fast) ease;
}

.page-contact .pc-channel:hover {
  transform: translateY(-3px);
  background: rgba(40, 240, 200, 0.16);
  border-color: rgba(40, 240, 200, 0.45);
}

.page-contact .pc-channel:focus-visible {
  box-shadow: 0 0 0 2px var(--c-cyan);
  background: rgba(40, 240, 200, 0.16);
  border-color: rgba(40, 240, 200, 0.45);
}

.page-contact .pc-channel-no {
  display: block;
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--c-neutral);
}

.page-contact .pc-channel-name {
  margin: 0 0 12px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--c-mist);
}

.page-contact .pc-channel-value {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1.5;
  color: var(--c-mist);
  word-break: break-word;
  font-variant-numeric: tabular-nums;
}

.page-contact .pc-channel--mail .pc-channel-value--main {
  font-size: clamp(15px, 2.6vw, 21px);
  color: var(--c-cyan);
}

.page-contact .pc-channel--addr .pc-channel-value--addr {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-body);
}

.page-contact .pc-channel-desc {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-body);
}

.page-contact .pc-channel-desc:last-child {
  margin-bottom: 0;
}

/* ---------- 02 问题分派 ---------- */
.page-contact .pc-routes {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .pc-route {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 4px 14px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line-soft);
  align-items: start;
}

.page-contact .pc-route-no {
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-orange);
}

.page-contact .pc-route-body {
  grid-column: 2;
  min-width: 0;
}

.page-contact .pc-route-title {
  margin: 0 0 8px;
  font-size: 17px;
  line-height: 1.4;
  color: var(--c-mist);
}

.page-contact .pc-route-body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-body);
}

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

.page-contact .pc-route-body a:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 2px;
}

.page-contact .pc-route-to {
  grid-column: 2;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--c-neutral);
}

/* ---------- 03 来信要点 ---------- */
.page-contact .pc-brief-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

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

.page-contact .pc-brief-list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 15px;
}

.page-contact .pc-brief-list li {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
}

.page-contact .pc-brief-num {
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  border-radius: 50%;
  background: var(--c-cyan);
  color: var(--c-carbon);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
}

.page-contact .pc-brief-list strong {
  display: block;
  margin: 0 0 4px;
  font-size: 15px;
  font-weight: 600;
  color: var(--c-mist);
}

.page-contact .pc-brief-list p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-neutral);
}

.page-contact .pc-example {
  margin: 0 0 16px;
  padding: 16px 18px;
  border: 1px solid var(--glass-line);
  border-radius: var(--radius);
  background: var(--glass);
}

.page-contact .pc-example summary {
  cursor: pointer;
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--c-cyan);
}

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

.page-contact .pc-example-body {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  display: grid;
  gap: 8px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-body);
}

.page-contact .pc-example-body p {
  margin: 0;
}

.page-contact .pc-example-key {
  display: inline-block;
  min-width: 5.5em;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-neutral);
}

.page-contact .pc-brief-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--c-neutral);
}

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

.page-contact .pc-brief-media {
  margin: 0;
}

.page-contact .pc-brief-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-contact .pc-brief-media .media-caption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--c-neutral);
}

/* ---------- 04 回复时段 ---------- */
.page-contact .pc-hours {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line);
}

.page-contact .pc-hour {
  padding: 20px 18px;
  background: var(--c-ink);
}

.page-contact .pc-hour h3 {
  margin: 0 0 10px;
  font-size: 15px;
  font-weight: 600;
  color: var(--c-mist);
}

.page-contact .pc-hour-line {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-cyan);
}

.page-contact .pc-hour p:last-child {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-body);
}

/* ---------- 05 自助入口 ---------- */
.page-contact .pc-self {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-contact .pc-self-card {
  display: block;
  padding: 20px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--c-ink);
  color: inherit;
  text-decoration: none;
  outline: none;
  transition:
    transform var(--t-fast) ease,
    border-color var(--t-base) ease,
    background var(--t-base) ease,
    box-shadow var(--t-fast) ease;
}

.page-contact .pc-self-card:hover {
  transform: translateY(-3px);
  border-color: var(--c-cyan);
  background: var(--c-ink-mid);
}

.page-contact .pc-self-card:focus-visible {
  box-shadow: 0 0 0 2px var(--c-cyan);
  border-color: var(--c-cyan);
  background: var(--c-ink-mid);
}

.page-contact .pc-self-no {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--c-neutral);
}

.page-contact .pc-self-card h3 {
  margin: 10px 0 8px;
  font-size: 17px;
  color: var(--c-mist);
}

.page-contact .pc-self-card p {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-body);
}

.page-contact .pc-self-go {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-cyan);
}

.page-contact .pc-self-go::after {
  content: " \2192";
}

/* ---------- 页尾宽幅 ---------- */
.page-contact .pc-outro {
  position: relative;
  margin: 0;
  border-top: 1px solid var(--line);
}

.page-contact .pc-outro img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.85) brightness(0.7);
}

.page-contact .pc-outro-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 22px 20px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--c-mist);
  background: linear-gradient(to top, rgba(11, 15, 14, 0.94), rgba(11, 15, 14, 0));
}

/* ---------- 桌面端栅格 ---------- */
@media (min-width: 768px) {
  .page-contact .pc-section .section-head {
    grid-template-columns: auto minmax(0, 1fr);
    column-gap: 20px;
    row-gap: 8px;
    align-items: baseline;
  }

  .page-contact .section-index {
    grid-column: 1;
    grid-row: 1;
  }

  .page-contact .section-title {
    grid-column: 2;
    grid-row: 1;
  }

  .page-contact .section-desc {
    grid-column: 2;
    grid-row: 2;
  }

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

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

  .page-contact .pc-outro img {
    aspect-ratio: 14 / 6;
  }

  .page-contact .pc-outro-caption {
    padding: 26px 40px;
    font-size: 15px;
  }
}

@media (min-width: 900px) {
  .page-contact .pc-hero {
    padding: 48px 0 56px;
  }

  .page-contact .pc-section {
    padding: 56px 0;
  }

  .page-contact .pc-channels {
    grid-template-columns: repeat(12, 1fr);
    gap: 18px;
    align-items: start;
  }

  .page-contact .pc-channel--mail {
    grid-column: 1 / span 7;
  }

  .page-contact .pc-channel--phone {
    grid-column: 8 / span 5;
    margin-top: 32px;
  }

  .page-contact .pc-channel--addr {
    grid-column: 4 / span 9;
    margin-top: 4px;
  }

  .page-contact .pc-channel {
    padding: 26px 24px 24px;
  }

  .page-contact .pc-route {
    grid-template-columns: 52px minmax(0, 1fr) 200px;
    column-gap: 26px;
    padding: 24px 0;
  }

  .page-contact .pc-route-no {
    grid-column: 1;
    grid-row: 1;
    padding-top: 3px;
  }

  .page-contact .pc-route-body {
    grid-column: 2;
    grid-row: 1;
  }

  .page-contact .pc-route-to {
    grid-column: 3;
    grid-row: 1;
    margin-top: 4px;
    text-align: right;
  }
}

@media (min-width: 1000px) {
  .page-contact .pc-brief-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    gap: 44px;
    align-items: start;
  }

  .page-contact .pc-brief-media {
    position: sticky;
    top: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-channel,
  .page-contact .pc-self-card {
    transition: none;
  }

  .page-contact .pc-channel:hover,
  .page-contact .pc-channel:focus-visible,
  .page-contact .pc-self-card:hover,
  .page-contact .pc-self-card:focus-visible {
    transform: none;
  }
}