.page-contact {
  --pc-gap: 18px;
  --pc-border: 2px;
  position: relative;
  padding-bottom: clamp(42px, 7vw, 92px);
  background:
    radial-gradient(92% 44% at 88% 0%, rgba(255, 90, 31, .16), transparent 64%),
    radial-gradient(70% 42% at 4% 5%, rgba(20, 224, 210, .09), transparent 62%),
    var(--ink);
  color: var(--chalk);
  overflow-x: hidden;
}

.page-contact .breadcrumb {
  padding-top: calc(var(--hdr-h) + 16px);
}

/* ---------- 页首 ---------- */
.page-contact .contact-intro {
  padding-top: clamp(26px, 4vw, 44px);
}

.page-contact .intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
  align-items: end;
}

.page-contact .intro-title {
  margin: 14px 0 0;
  font-size: clamp(34px, 7.6vw, 72px);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -.03em;
  color: var(--chalk);
  transform: skewX(-3deg);
}

.page-contact .intro-lead {
  max-width: 44em;
  margin: 20px 0 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--stand);
}

.page-contact .intro-lead strong {
  color: var(--chalk);
  font-weight: 700;
}

.page-contact .intro-grid__side {
  min-width: 0;
}

.page-contact .intro-grid__side .annotation {
  display: block;
  margin-bottom: 12px;
}

.page-contact .quickline {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-contact .quickline__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border: var(--pc-border) solid var(--court);
  border-left: 5px solid var(--pulse);
  background: var(--tunnel);
  box-shadow: var(--shadow-hard);
}

.page-contact .quickline__row--volt {
  border-left-color: var(--volt);
}

.page-contact .quickline__tag {
  flex: 0 0 auto;
  padding: 3px 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--pulse);
  border: 1px solid currentColor;
}

.page-contact .quickline__row--volt .quickline__tag {
  color: var(--volt);
}

.page-contact .quickline__value {
  flex: 1 1 auto;
  min-width: 0;
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 16px;
  line-height: 1.3;
  color: var(--chalk);
  word-break: break-all;
}

.page-contact .quickline__row .copy-btn {
  margin-left: auto;
  flex: 0 0 auto;
}

/* ---------- 视觉 ---------- */
.page-contact .contact-visual {
  padding-top: clamp(28px, 5vw, 52px);
}

.page-contact .partner-figure {
  margin: 0 0 clamp(28px, 5vw, 48px);
}

/* ---------- 三通道 ---------- */
.page-contact .channel-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: 28px;
}

.page-contact .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
  padding: 26px 20px 20px;
  background: var(--tunnel);
  border: var(--pc-border) solid var(--court);
  transition: border-color .14s var(--ease), box-shadow .14s var(--ease), transform .14s var(--ease);
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  height: 4px;
  background: var(--pulse);
}

.page-contact .channel-card--mail::before {
  background: var(--volt);
}

.page-contact .channel-card--phone::before {
  background: var(--green);
}

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within {
  border-color: var(--pulse);
  box-shadow: var(--shadow-hard-lg);
  transform: translateY(-2px);
}

.page-contact .channel-card__no {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 34px;
  line-height: 1;
  color: var(--court);
}

.page-contact .channel-card__title {
  margin: 0;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--chalk);
}

.page-contact .channel-card__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--stand);
}

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

.page-contact .channel-card__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14.5px;
  line-height: 1.62;
  color: var(--stand);
}

.page-contact .channel-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 6px;
  height: 6px;
  background: var(--court);
}

.page-contact .channel-card__foot {
  margin: auto 0 0;
  padding-top: 10px;
  border-top: 1px solid var(--court);
}

.page-contact .channel-card__link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: 15px;
  font-weight: 700;
  color: var(--pulse);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: border-color .14s var(--ease), transform .14s var(--ease);
}

.page-contact .channel-card__link:hover {
  border-bottom-color: var(--pulse);
  transform: translateX(2px);
}

/* ---------- 报问题要点 ---------- */
.page-contact .report-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
}

.page-contact .report-grid__aside {
  min-width: 0;
}

.page-contact .report-note {
  margin: 16px 0 0;
  padding-left: 14px;
  border-left: 3px solid var(--court);
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--stand);
}

.page-contact .brief-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: brief;
}

.page-contact .brief-list__item {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 16px 18px;
  border: var(--pc-border) solid var(--court);
  background: linear-gradient(90deg, rgba(255, 90, 31, .09), rgba(255, 90, 31, 0) 46%), var(--tunnel);
  transition: border-color .14s var(--ease);
}

.page-contact .brief-list__item:hover {
  border-color: var(--pulse);
}

.page-contact .brief-list__num {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 32px;
  line-height: 1;
  color: var(--pulse);
}

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

.page-contact .brief-list__title {
  margin: 0 0 6px;
  font-size: 16.5px;
  font-weight: 800;
  color: var(--chalk);
}

.page-contact .brief-list__body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--stand);
}

/* ---------- 合作 ---------- */
.page-contact .partner-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
}

.page-contact .partner-grid__intro {
  min-width: 0;
}

.page-contact .partner-cols {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-contact .partner-card {
  min-width: 0;
  padding: 20px;
  background: var(--tunnel);
  border: var(--pc-border) solid var(--court);
  border-top-width: 5px;
}

.page-contact .partner-card--pulse {
  border-top-color: var(--pulse);
}

.page-contact .partner-card--volt {
  border-top-color: var(--volt);
}

.page-contact .partner-card__title {
  margin: 0 0 12px;
  font-size: 18px;
  font-weight: 800;
  color: var(--chalk);
}

.page-contact .partner-card__list {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .partner-card__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.64;
  color: var(--stand);
}

.page-contact .partner-card__list li::before {
  content: "›";
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-num);
  font-size: 16px;
  line-height: 1.5;
  color: var(--volt);
}

.page-contact .partner-card--pulse .partner-card__list li::before {
  color: var(--pulse);
}

/* ---------- 账号与商务 ---------- */
.page-contact .duo-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: 26px;
}

.page-contact .duo-card {
  min-width: 0;
  padding: 24px 20px;
  background: var(--tunnel);
  border: var(--pc-border) solid var(--court);
  transition: box-shadow .14s var(--ease), transform .14s var(--ease);
}

.page-contact .duo-card:hover {
  box-shadow: var(--shadow-hard);
  transform: translateY(-2px);
}

.page-contact .duo-card--volt {
  border-left: 5px solid var(--volt);
}

.page-contact .duo-card--pulse {
  border-left: 5px solid var(--pulse);
}

.page-contact .duo-card__title {
  margin: 0 0 10px;
  font-size: 20px;
  font-weight: 800;
  color: var(--chalk);
}

.page-contact .duo-card__desc {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--stand);
}

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

.page-contact .duo-card__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14.5px;
  line-height: 1.64;
  color: var(--stand);
}

.page-contact .duo-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .6em;
  width: 7px;
  height: 2px;
  background: var(--court);
}

/* ---------- 响应节奏 ---------- */
.page-contact .rhythm-list {
  display: grid;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  border-top: var(--pc-border) solid var(--court);
}

.page-contact .rhythm-list__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 20px 0;
  border-bottom: var(--pc-border) solid var(--court);
  transition: background-color .14s var(--ease);
}

.page-contact .rhythm-list__item:hover {
  background-color: rgba(255, 90, 31, .05);
}

.page-contact .rhythm-list__badge {
  justify-self: start;
  padding: 3px 9px;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--ink);
  background: var(--pulse);
}

.page-contact .rhythm-list__time {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 18px;
  line-height: 1.3;
  color: var(--chalk);
}

.page-contact .rhythm-list__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--stand);
}

/* ---------- 地址 ---------- */
.page-contact .addr-block {
  padding: clamp(22px, 4vw, 38px);
  border: var(--pc-border) solid var(--court);
  border-top: 4px solid var(--pulse);
  background: var(--tunnel);
}

.page-contact .addr-list {
  display: grid;
  gap: 0;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--court);
}

.page-contact .addr-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--court);
}

.page-contact .addr-key {
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .24em;
  color: var(--stand);
}

.page-contact .addr-val {
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--chalk);
  word-break: break-word;
}

.page-contact .addr-val--mail,
.page-contact .addr-val--phone {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 19px;
  letter-spacing: .01em;
}

.page-contact .addr-val--mail {
  color: var(--volt);
}

.page-contact .addr-val--phone {
  color: var(--pulse);
}

.page-contact .addr-note {
  margin: 18px 0 0;
  max-width: 720px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--stand);
}

.page-contact .copy-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.page-contact .addr-icp {
  margin: 22px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--court);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--stand);
}

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

  .page-contact .channel-card--feedback {
    grid-column: span 2;
  }

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

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

  .page-contact .addr-row {
    grid-template-columns: 160px minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }
}

@media (min-width: 780px) {
  .page-contact .rhythm-list__item {
    grid-template-columns: 150px 210px minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }

  .page-contact .rhythm-list__badge {
    align-self: center;
  }
}

@media (min-width: 1000px) {
  .page-contact .intro-grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    gap: 52px;
  }

  .page-contact .channel-grid {
    grid-template-columns: 1.2fr 1fr 1fr;
    gap: 20px;
  }

  .page-contact .channel-card--feedback {
    grid-column: auto;
  }

  .page-contact .report-grid {
    grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
    gap: 46px;
    align-items: start;
  }

  .page-contact .partner-grid {
    grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
    gap: 42px;
    align-items: start;
  }
}

@media (min-width: 1200px) {
  .page-contact .contact-intro {
    padding-top: 56px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .duo-card,
  .page-contact .channel-card__link,
  .page-contact .brief-list__item,
  .page-contact .rhythm-list__item {
    transition: color .12s linear, background-color .12s linear, border-color .12s linear;
  }

  .page-contact .channel-card:hover,
  .page-contact .channel-card:focus-within,
  .page-contact .duo-card:hover,
  .page-contact .channel-card__link:hover {
    transform: none;
    box-shadow: none;
  }
}