.page-contact {
  --pc-gap: clamp(14px, 2vw, 24px);
  --pc-grid: 32px;
  background-color: var(--bp-900);
  color: var(--mist);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  overflow-x: hidden;
}

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

/* ---------- 面包屑 ---------- */
.page-contact .contact-crumb {
  padding-top: clamp(18px, 3vw, 30px);
}

/* ---------- 框景首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: clamp(20px, 3vw, 34px) 0 clamp(44px, 6vw, 76px);
  background-image:
    linear-gradient(to right, rgba(29, 62, 107, 0.22) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(29, 62, 107, 0.22) 1px, transparent 1px);
  background-size: var(--pc-grid) var(--pc-grid), var(--pc-grid) var(--pc-grid);
  background-position: center top;
}

.page-contact .contact-hero__frame {
  position: relative;
  border: 1px solid var(--navy-line);
  padding: clamp(26px, 5vw, 62px) clamp(20px, 4vw, 56px);
  background: linear-gradient(158deg, rgba(16, 41, 77, 0.72), rgba(5, 18, 31, 0.28) 68%);
}

.page-contact .contact-hero__frame::before,
.page-contact .contact-hero__frame::after {
  content: "";
  position: absolute;
  width: 26px;
  height: 26px;
  border: 2px solid var(--orange);
  pointer-events: none;
}

.page-contact .contact-hero__frame::before {
  top: -1px;
  left: -1px;
  border-right: 0;
  border-bottom: 0;
}

.page-contact .contact-hero__frame::after {
  right: -1px;
  bottom: -1px;
  border-top: 0;
  border-left: 0;
}

.page-contact .contact-hero__index {
  margin: 0 0 16px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--orange);
}

.page-contact .contact-hero__title {
  margin: 0 0 20px;
  max-width: 19ch;
  font-size: clamp(2.1rem, 6vw, 4.2rem);
  font-weight: 300;
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-contact .contact-hero__lead {
  margin: 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .contact-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(16px, 3.4vw, 46px);
  list-style: none;
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding: clamp(16px, 2.4vw, 22px) 0 0;
  border-top: 1px solid var(--navy-line);
}

.page-contact .fact {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.page-contact .fact__value {
  font-size: clamp(1.5rem, 3.4vw, 2.2rem);
  font-weight: 500;
  line-height: 1;
  color: var(--orange);
}

.page-contact .fact__label {
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-contact .contact-hero__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-contact .contact-hero__nav a {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--mist);
  text-decoration: none;
  padding-bottom: 3px;
  border-bottom: 1px solid transparent;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-contact .contact-hero__nav a:hover,
.page-contact .contact-hero__nav a:focus-visible {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

/* ---------- 通用区块与抬头 ---------- */
.page-contact .pc-section {
  position: relative;
  padding: clamp(48px, 7vw, 94px) 0;
  border-top: 1px solid var(--navy-line);
}

.page-contact .pc-head {
  position: relative;
  max-width: 60ch;
  margin: 0 0 clamp(22px, 3vw, 34px);
  padding-top: 18px;
  border-top: 1px solid var(--navy-line);
}

.page-contact .pc-head__index {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--orange);
}

.page-contact .pc-head__title {
  margin: 0 0 10px;
  font-size: clamp(1.4rem, 3vw, 2.1rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-contact .pc-head__note {
  margin: 0;
  font-size: 15px;
  color: var(--mist);
}

.page-contact .pc-text {
  margin: 0;
  max-width: 44ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 横带图 ---------- */
.page-contact .pc-band {
  margin: 0 0 clamp(28px, 4vw, 48px);
  border: 1px solid var(--navy-line);
}

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

/* ---------- 渠道卡片 ---------- */
.page-contact .channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pc-gap);
}

.page-contact .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(34px, 4vw, 46px) clamp(20px, 2.6vw, 30px) clamp(20px, 2.6vw, 28px);
  background: var(--bp-800);
  border: 1px solid var(--navy-line);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
}

.page-contact .channel-card--primary {
  background: linear-gradient(165deg, rgba(255, 107, 26, 0.14), rgba(10, 29, 51, 1) 58%);
  border-color: rgba(255, 107, 26, 0.55);
}

.page-contact .channel-card--primary::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 62px;
  height: 3px;
  background: var(--orange);
}

.page-contact .channel-card__no {
  position: absolute;
  top: 13px;
  right: 18px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-contact .channel-card__label {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--orange);
}

.page-contact .channel-card__value {
  margin: 0;
  font-size: clamp(1rem, 2.1vw, 1.35rem);
  font-weight: 500;
  line-height: 1.4;
  color: var(--white);
  word-break: break-word;
}

.page-contact .channel-card__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .channel-card__note {
  margin: auto 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--navy-line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 纠错流程 ---------- */
.page-contact .correction-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 52px);
}

.page-contact .fix-steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .fix-step {
  position: relative;
  padding: 0 0 clamp(26px, 3.4vw, 42px) clamp(46px, 6vw, 74px);
}

.page-contact .fix-step::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 42px;
  bottom: 0;
  width: 1px;
  background: var(--navy-line);
}

.page-contact .fix-step:last-child {
  padding-bottom: 0;
}

.page-contact .fix-step:last-child::before {
  display: none;
}

.page-contact .fix-step__no {
  position: absolute;
  left: 0;
  top: 0;
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  font-size: 12px;
  font-weight: 500;
  color: var(--bp-900);
  background: var(--orange);
  clip-path: polygon(0 0, 100% 0, 100% 68%, 68% 100%, 0 100%);
}

.page-contact .fix-step__title {
  margin: 3px 0 8px;
  font-size: 1.02rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--white);
}

.page-contact .fix-step__text {
  margin: 0;
  max-width: 50ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .fix-step__list {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-contact .fix-step__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .fix-step__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 1px;
  background: var(--lime);
}

/* ---------- 共建与标签 ---------- */
.page-contact .build-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 50px);
}

.page-contact .build-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 18px;
}

.page-contact .build-tab {
  appearance: none;
  background: transparent;
  border: 1px solid var(--navy-line);
  color: var(--mist);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  padding: 9px 15px;
  cursor: pointer;
  clip-path: polygon(0 0, calc(100% - 9px) 0, 100% 9px, 100% 100%, 0 100%);
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease), background-color 0.25s var(--ease);
}

.page-contact .build-tab:hover,
.page-contact .build-tab:focus-visible {
  color: var(--white);
  border-color: var(--orange);
}

.page-contact .build-tab[aria-selected="true"] {
  color: var(--bp-900);
  background: var(--lime);
  border-color: var(--lime);
}

.page-contact .build-panel {
  padding: clamp(18px, 2.4vw, 26px);
  margin-bottom: 12px;
  background: var(--bp-800);
  border: 1px solid var(--navy-line);
  border-left: 2px solid var(--navy-line);
}

.page-contact .build-panel__title {
  margin: 0 0 12px;
  font-size: 0.98rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--white);
}

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

.page-contact .build-panel__list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
}

.page-contact .build-panel__list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.68em;
  width: 6px;
  height: 6px;
  background: var(--navy-line);
  transform: rotate(45deg);
}

.page-contact .build-panel__note {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--navy-line);
  font-size: 13px;
  line-height: 1.72;
  color: var(--slate);
}

.page-contact .build-side .media-frame {
  border: 1px solid var(--navy-line);
}

/* ---------- 授权（浅色分区） ---------- */
.page-contact .license {
  background: var(--paper);
  color: var(--ink);
  padding: clamp(48px, 7vw, 92px) 0;
  border-top: 1px solid var(--navy-line);
}

.page-contact .pc-head--light {
  border-top-color: rgba(22, 32, 46, 0.22);
}

.page-contact .pc-head--light .pc-head__index {
  color: var(--orange);
}

.page-contact .pc-head--light .pc-head__title {
  color: var(--ink);
}

.page-contact .pc-head--light .pc-head__note {
  color: var(--slate);
}

.page-contact .license-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 40px);
}

.page-contact .license-card {
  padding-top: 16px;
  border-top: 2px solid var(--bp-700);
}

.page-contact .license-card__title {
  margin: 0 0 12px;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--ink);
}

.page-contact .license-card__text {
  margin: 0 0 12px;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
}

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

.page-contact .license-card__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--slate);
}

.page-contact .license-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 1px;
  background: var(--orange);
}

/* ---------- 跟进 ---------- */
.page-contact .pc-section--last {
  background-image:
    linear-gradient(to right, rgba(29, 62, 107, 0.16) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(29, 62, 107, 0.16) 1px, transparent 1px);
  background-size: var(--pc-grid) var(--pc-grid), var(--pc-grid) var(--pc-grid);
  padding-bottom: clamp(56px, 8vw, 110px);
}

.page-contact .followup-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3vw, 36px);
  margin-bottom: clamp(32px, 5vw, 56px);
}

.page-contact .followup-item {
  position: relative;
  padding-top: 18px;
  border-top: 1px solid var(--navy-line);
}

.page-contact .followup-item::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 36px;
  height: 2px;
  background: var(--orange);
}

.page-contact .followup-item:nth-child(2)::before {
  background: var(--lime);
}

.page-contact .followup-item:nth-child(3)::before {
  background: var(--orange-soft);
}

.page-contact .followup-item__no {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--mist);
}

.page-contact .followup-item__title {
  margin: 0 0 10px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--white);
}

.page-contact .followup-item__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .pc-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-contact .followup-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .license-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    gap: clamp(28px, 4vw, 56px);
  }
}

@media (min-width: 900px) {
  .page-contact .channel-grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr) minmax(0, 0.95fr);
    align-items: start;
    gap: clamp(16px, 2vw, 26px);
  }

  .page-contact .channel-card:nth-child(3) {
    margin-top: 30px;
  }

  .page-contact .build-layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-contact .correction-layout {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(36px, 5vw, 76px);
  }

  .page-contact .correction-intro {
    position: sticky;
    top: 96px;
    align-self: start;
  }
}

@media (max-width: 560px) {
  .page-contact .contact-hero__facts {
    gap: 14px 24px;
  }

  .page-contact .fact__value {
    font-size: 1.5rem;
  }

  .page-contact .channel-card__value {
    word-break: break-all;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}