.page-contact {
  --pc-pad: 56px;
  --pc-panel-bg: var(--c-panel);
}

.page-contact .section {
  padding: var(--pc-pad) 0;
}

.page-contact h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 4.2vw, 40px);
  line-height: 1.16;
  letter-spacing: -.01em;
  color: var(--c-paper);
  margin: 12px 0 14px;
}

.page-contact h3 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(17px, 2.2vw, 20px);
  line-height: 1.35;
  color: var(--c-paper);
  margin: 0 0 8px;
}

.page-contact .contact-lede {
  color: var(--c-body);
  font-size: 16px;
  line-height: 1.8;
  margin: 0;
  max-width: 62ch;
}

.page-contact .contact-fix__note {
  color: var(--c-gray);
  font-size: 14px;
  line-height: 1.8;
  margin: 18px 0 0;
}

.page-contact .contact-fix__note a {
  color: var(--c-mint);
  text-decoration: none;
  border-bottom: 1px solid rgba(20, 224, 177, .4);
}

.page-contact .contact-fix__note a:hover {
  color: var(--c-orange-lift);
  border-bottom-color: var(--c-orange-lift);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--c-line);
}

.page-contact .contact-hero__inner {
  display: grid;
  gap: 36px;
  padding: 36px 0 52px;
}

.page-contact .contact-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 7vw, 66px);
  line-height: 1.05;
  letter-spacing: -.02em;
  color: var(--c-paper);
  margin: 12px 0 18px;
  transform: skewX(-2deg);
  text-shadow: 1px 0 0 rgba(255, 106, 26, .55);
}

.page-contact .contact-hero__lede {
  color: var(--c-body);
  font-size: 17px;
  line-height: 1.8;
  margin: 0;
  max-width: 38em;
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-contact .contact-hero__facts {
  list-style: none;
  margin: 28px 0 0;
  padding: 20px 0 0;
  border-top: 1px solid var(--c-line);
  display: grid;
  gap: 12px;
}

.page-contact .contact-hero__key {
  display: block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--c-gray);
  margin-bottom: 4px;
}

.page-contact .contact-hero__val {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--c-paper);
  text-decoration: none;
  word-break: break-all;
}

.page-contact .contact-hero__val:hover {
  color: var(--c-mint);
}

.page-contact .contact-hero__media-wrap {
  position: relative;
}

.page-contact .contact-hero__media {
  margin: 0;
}

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

.page-contact .contact-hero__pulse {
  position: absolute;
  top: -22px;
  right: -18px;
  width: 128px;
  height: 128px;
  border-radius: 50%;
  pointer-events: none;
  border: 1px solid rgba(20, 224, 177, .3);
  background:
    radial-gradient(circle, rgba(20, 224, 177, .18) 0 17%, transparent 18% 100%),
    radial-gradient(circle, transparent 0 45%, rgba(20, 224, 177, .2) 46% 47%, transparent 48%),
    radial-gradient(circle, transparent 0 71%, rgba(20, 224, 177, .16) 72% 73%, transparent 74%);
  animation: pc-radar-spin 6s linear infinite;
}

@keyframes pc-radar-spin {
  to { transform: rotate(360deg); }
}

/* ---------- 来意切换 ---------- */
.page-contact .contact-intent__head {
  max-width: 66ch;
  margin-bottom: 30px;
}

.page-contact .intent-switch {
  position: relative;
  display: grid;
  gap: 22px;
}

.page-contact .intent-switch__radio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-contact .intent-switch__rail {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(min(240px, 100%), 1fr));
}

.page-contact .intent-card {
  display: grid;
  gap: 6px;
  padding: 18px 18px 16px;
  background: var(--pc-panel-bg);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-line);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color .18s ease, background-color .18s ease;
}

.page-contact .intent-card:hover {
  border-color: var(--c-orange-lift);
}

.page-contact .intent-card__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--c-gray);
}

.page-contact .intent-card__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  line-height: 1.3;
  color: var(--c-paper);
}

.page-contact .intent-card__desc {
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--c-gray);
}

.page-contact .intent-card__ch {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-mint);
  margin-top: 4px;
}

.page-contact #intent-support:checked ~ .intent-switch__rail label[for="intent-support"],
.page-contact #intent-fix:checked ~ .intent-switch__rail label[for="intent-fix"],
.page-contact #intent-data:checked ~ .intent-switch__rail label[for="intent-data"],
.page-contact #intent-media:checked ~ .intent-switch__rail label[for="intent-media"] {
  background: linear-gradient(160deg, rgba(255, 106, 26, .16), rgba(255, 106, 26, .03));
  border-color: var(--c-orange);
  border-left-color: var(--c-orange);
}

.page-contact #intent-support:focus-visible ~ .intent-switch__rail label[for="intent-support"],
.page-contact #intent-fix:focus-visible ~ .intent-switch__rail label[for="intent-fix"],
.page-contact #intent-data:focus-visible ~ .intent-switch__rail label[for="intent-data"],
.page-contact #intent-media:focus-visible ~ .intent-switch__rail label[for="intent-media"] {
  outline: 2px solid var(--c-mint);
  outline-offset: 2px;
}

.page-contact .intent-panel {
  display: none;
  background: var(--pc-panel-bg);
  border: 1px solid var(--c-line);
  border-top: 3px solid var(--c-orange);
  border-radius: var(--radius);
  padding: 24px 20px;
}

.page-contact #intent-support:checked ~ .intent-switch__panels #panel-support,
.page-contact #intent-fix:checked ~ .intent-switch__panels #panel-fix,
.page-contact #intent-data:checked ~ .intent-switch__panels #panel-data,
.page-contact #intent-media:checked ~ .intent-switch__panels #panel-media {
  display: block;
}

.page-contact .intent-panel__title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(21px, 3vw, 28px);
  line-height: 1.3;
  color: var(--c-paper);
  margin: 12px 0 10px;
}

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

.page-contact .intent-panel__meta {
  margin: 20px 0 0;
  border-top: 1px solid var(--c-line);
}

.page-contact .intent-panel__meta > div {
  display: grid;
  gap: 4px;
  padding: 12px 0;
  border-bottom: 1px solid var(--c-line-soft);
}

.page-contact .intent-panel__meta dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-gray);
}

.page-contact .intent-panel__meta dd {
  margin: 0;
  color: var(--c-paper);
  font-size: 14.5px;
  line-height: 1.75;
}

.page-contact .intent-panel__code {
  display: block;
  margin-top: 16px;
  padding: 12px 14px;
  background: var(--c-mint-bg);
  border: 1px dashed rgba(20, 224, 177, .45);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--c-mint);
  word-break: break-word;
}

.page-contact .intent-panel__more {
  margin: 14px 0 0;
  color: var(--c-gray);
  font-size: 13.5px;
  line-height: 1.8;
}

.page-contact .intent-panel__more a {
  color: var(--c-mint);
  text-decoration: none;
  border-bottom: 1px solid rgba(20, 224, 177, .4);
}

.page-contact .intent-panel__more a:hover {
  color: var(--c-orange-lift);
  border-bottom-color: var(--c-orange-lift);
}

/* ---------- 写邮件建议 ---------- */
.page-contact .contact-tips__grid {
  display: grid;
  gap: 30px;
}

.page-contact .contact-tips__list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-contact .contact-tips__list li {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 14px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--c-line-soft);
}

.page-contact .contact-tips__no {
  font-family: var(--font-mono);
  font-size: 22px;
  line-height: 1.1;
  color: var(--c-orange);
}

.page-contact .contact-tips__list h3 {
  margin-bottom: 6px;
}

.page-contact .contact-tips__list p {
  margin: 0;
  color: var(--c-gray);
  font-size: 14.5px;
  line-height: 1.8;
}

.page-contact .contact-tips__sample-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--c-gray);
  margin: 0 0 10px;
}

.page-contact .contact-tips__sample {
  margin: 0;
  padding: 22px 20px;
  background: var(--c-ink);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-mint);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 2;
  color: var(--c-paper);
  white-space: pre-wrap;
  word-break: break-word;
  overflow-x: auto;
}

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

.page-contact .contact-table__wrap {
  overflow-x: auto;
}

.page-contact .contact-table {
  width: 100%;
  min-width: 420px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-contact .contact-table th,
.page-contact .contact-table td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--c-line-soft);
  vertical-align: top;
}

.page-contact .contact-table th {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  font-weight: 500;
  color: var(--c-gray);
}

.page-contact .contact-table td {
  color: var(--c-body);
  line-height: 1.7;
}

.page-contact .contact-table code {
  font-family: var(--font-mono);
  color: var(--c-mint);
}

/* ---------- 内容纠错 ---------- */
.page-contact .contact-fix__panel {
  padding: 26px 20px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background:
    linear-gradient(160deg, rgba(14, 47, 44, .92), rgba(14, 47, 44, .28) 70%, rgba(11, 12, 14, .6));
}

.page-contact .contact-fix__need {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .contact-fix__need li {
  padding: 14px 16px;
  background: rgba(11, 12, 14, .52);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  color: var(--c-body);
  font-size: 14px;
  line-height: 1.8;
}

.page-contact .contact-fix__need strong {
  display: block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 15px;
  color: var(--c-mint);
  margin-bottom: 6px;
}

/* ---------- 合作方向 ---------- */
.page-contact .contact-partner__grid {
  display: grid;
  gap: 28px;
}

.page-contact .contact-partner__media {
  margin: 0;
}

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

.page-contact .contact-partner__list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
}

.page-contact .contact-partner__list li {
  display: grid;
  gap: 6px;
  padding: 18px 0;
  border-top: 1px solid var(--c-line);
}

.page-contact .contact-partner__list h3 {
  margin-bottom: 0;
  font-size: 17px;
}

.page-contact .contact-partner__list p {
  margin: 0;
  color: var(--c-gray);
  font-size: 14.5px;
  line-height: 1.8;
}

/* ---------- 回复节奏 ---------- */
.page-contact .contact-hours__grid {
  display: grid;
  gap: 18px;
  margin-top: 26px;
}

.page-contact .contact-hours .card {
  padding: 22px 20px;
  border-top: 3px solid var(--c-line);
}

.page-contact .contact-hours .card--focus {
  border-top-color: var(--c-orange);
}

.page-contact .contact-hours .card--mint {
  border-top-color: var(--c-mint);
}

.page-contact .contact-hours__label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--c-gray);
  margin: 0;
}

.page-contact .contact-hours .card h3 {
  margin: 10px 0 10px;
  font-size: 19px;
}

.page-contact .contact-hours .card p {
  margin: 0;
  color: var(--c-body);
  font-size: 14.5px;
  line-height: 1.8;
}

/* ---------- 底部联系方式窄条 ---------- */
.page-contact .contact-channels__head {
  max-width: 60ch;
  margin-bottom: 26px;
}

.page-contact .contact-strip {
  display: grid;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: var(--pc-panel-bg);
  overflow: hidden;
}

.page-contact .contact-strip__item {
  display: grid;
  gap: 8px;
  align-content: start;
  padding: 20px 22px;
  border-bottom: 1px solid var(--c-line-soft);
}

.page-contact .contact-strip__item:last-child {
  border-bottom: none;
}

.page-contact .contact-strip__key {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--c-gray);
}

.page-contact .contact-strip__val {
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1.6;
  color: var(--c-paper);
  text-decoration: none;
  word-break: break-word;
}

.page-contact a.contact-strip__val:hover {
  color: var(--c-mint);
}

.page-contact .contact-strip__note {
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--c-gray);
}

.page-contact .contact-strip__note a {
  color: var(--c-mint);
  text-decoration: none;
}

.page-contact .contact-strip__note a:hover {
  color: var(--c-orange-lift);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .intent-panel {
    padding: 28px 26px;
  }

  .page-contact .intent-panel__meta > div {
    grid-template-columns: 88px 1fr;
    gap: 4px 18px;
    align-items: baseline;
  }

  .page-contact .contact-hero__facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px 28px;
  }

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

  .page-contact .contact-fix__panel {
    padding: 34px 32px;
  }

  .page-contact .contact-partner__list li {
    grid-template-columns: 190px 1fr;
    gap: 20px;
    align-items: baseline;
  }

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

@media (min-width: 860px) {
  .page-contact .contact-strip {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .contact-strip__item {
    border-bottom: none;
    border-right: 1px solid var(--c-line-soft);
  }

  .page-contact .contact-strip__item:last-child {
    border-right: none;
  }
}

@media (min-width: 900px) {
  .page-contact {
    --pc-pad: 82px;
  }

  .page-contact .contact-hero__inner {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    align-items: center;
    gap: 56px;
    padding: 58px 0 74px;
  }

  .page-contact .contact-tips__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-contact .contact-partner__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: center;
    gap: 48px;
  }
}

@media (min-width: 980px) {
  .page-contact .intent-switch {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: 26px;
    align-items: start;
  }

  .page-contact .intent-switch__rail {
    grid-template-columns: 1fr;
  }

  .page-contact .intent-panel {
    min-height: 100%;
  }
}

@media (max-width: 720px) {
  .page-contact .contact-hero__pulse {
    display: none;
  }

  .page-contact .contact-hero__media-wrap {
    margin-top: 6px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-hero__pulse {
    animation: none;
  }

  .page-contact .intent-card {
    transition: none;
  }
}