.page-contact {
  --pc-ink-soft: #2b322f;
  background: var(--paper-050);
  color: var(--ink-900);
  font-family: var(--font-body);
  overflow-x: clip;
}

.page-contact *,
.page-contact *::before,
.page-contact *::after {
  box-sizing: border-box;
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  position: relative;
  background: var(--ink-900);
  color: var(--paper-050);
  padding: clamp(18px, 2.4vw, 28px) 0 clamp(104px, 13vw, 176px);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 72px), 0 100%);
  overflow: hidden;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -14%;
  width: min(720px, 80%);
  height: 150%;
  background: linear-gradient(152deg, rgba(2, 196, 107, 0.26), rgba(31, 107, 255, 0.13) 52%, transparent 76%);
  transform: rotate(6deg);
  pointer-events: none;
}

.page-contact .contact-hero .breadcrumb__link {
  color: var(--tile-400);
  transition: color 140ms var(--ease);
}

.page-contact .contact-hero .breadcrumb__link:hover,
.page-contact .contact-hero .breadcrumb__link:focus-visible {
  color: var(--pitch-500);
}

.page-contact .contact-hero .breadcrumb__current {
  color: var(--pitch-500);
}

.page-contact .hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(24px, 4vw, 46px);
  margin-top: clamp(26px, 4.6vw, 54px);
}

@media (min-width: 940px) {
  .page-contact .hero-grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: end;
  }
}

.page-contact .hero-copy h1 {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(2rem, 5.4vw, 3.75rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 18px 0 0;
  max-width: 17em;
}

.page-contact .hero-lede {
  margin: 22px 0 0;
  font-size: clamp(0.9375rem, 1.1vw, 1.0625rem);
  line-height: 1.85;
  color: rgba(244, 247, 244, 0.76);
  max-width: 36em;
}

.page-contact .hero-visual {
  position: relative;
  z-index: 1;
  margin: 0;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 30px), calc(100% - 30px) 100%, 0 100%);
}

.page-contact .hero-visual img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-contact .hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(198deg, rgba(10, 14, 12, 0) 40%, rgba(10, 14, 12, 0.72) 100%);
  pointer-events: none;
}

/* ---------- 四项联系方式卡 ---------- */

.page-contact .contact-cards {
  position: relative;
  z-index: 1;
  list-style: none;
  margin: clamp(36px, 5.6vw, 64px) 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

@media (min-width: 620px) {
  .page-contact .contact-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {
  .page-contact .contact-cards {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-contact .contact-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 20px 18px 18px;
  background: var(--slate-800);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
}

.page-contact .contact-card__index {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--pitch-500);
}

.page-contact .contact-card__label {
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  color: var(--tile-400);
}

.page-contact .contact-card__value {
  margin: 6px 0 0;
  font-size: clamp(0.9375rem, 1.35vw, 1.125rem);
  line-height: 1.5;
  color: var(--paper-050);
  word-break: break-word;
}

.page-contact .contact-card__note {
  margin: 0;
  font-size: 0.8125rem;
  line-height: 1.65;
  color: rgba(244, 247, 244, 0.56);
}

.page-contact .contact-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
  padding-top: 16px;
}

.page-contact .contact-card .btn--ghost {
  color: var(--paper-050);
  border-color: rgba(244, 247, 244, 0.32);
}

.page-contact .contact-card .copy-btn {
  background: transparent;
  color: var(--paper-050);
  border: 1px solid rgba(244, 247, 244, 0.24);
  padding: 6px 12px;
  font-size: 0.8125rem;
  line-height: 1.4;
  cursor: pointer;
  transition: border-color 150ms var(--ease), color 150ms var(--ease);
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
}

.page-contact .contact-card .copy-btn:hover {
  border-color: var(--pitch-500);
  color: var(--pitch-500);
}

.page-contact .contact-card .copy-btn[data-copied] {
  border-color: var(--pitch-500);
  background: rgba(2, 196, 107, 0.14);
  color: var(--pitch-500);
}

.page-contact .contact-card .copy-btn:focus-visible,
.page-contact .contact-card .btn--ghost:focus-visible {
  outline: 2px solid var(--pitch-500);
  outline-offset: 2px;
}

/* ---------- 分区索引头 ---------- */

.page-contact .pc-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px 24px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--ink-900);
  margin: 0 0 clamp(22px, 3.4vw, 34px);
}

.page-contact .pc-head__title {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(1.375rem, 2.7vw, 2.125rem);
  line-height: 1.22;
  letter-spacing: -0.02em;
  max-width: 24em;
}

.page-contact .pc-head__meta {
  margin: 0;
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  color: var(--pitch-700);
}

.page-contact .pc-head--dark {
  border-bottom-color: rgba(244, 247, 244, 0.24);
}

.page-contact .pc-head--dark .pc-head__title {
  color: var(--paper-050);
}

.page-contact .pc-head--dark .pc-head__meta {
  color: var(--pitch-500);
}

/* ---------- 直接联系 ---------- */

.page-contact .direct {
  padding: clamp(38px, 6vw, 78px) 0 clamp(22px, 3.6vw, 42px);
}

.page-contact .direct-grid {
  display: grid;
  gap: clamp(16px, 2.4vw, 26px);
}

@media (min-width: 960px) {
  .page-contact .direct-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

.page-contact .direct-main {
  background: #ffffff;
  border: 1px solid rgba(10, 14, 12, 0.08);
  border-left: 4px solid var(--pitch-500);
  padding: clamp(22px, 3.2vw, 38px);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 28px), calc(100% - 28px) 100%, 0 100%);
}

.page-contact .direct-main h3 {
  margin: 0 0 14px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(1.25rem, 2.2vw, 1.6875rem);
  line-height: 1.35;
  letter-spacing: -0.02em;
}

.page-contact .direct-main p {
  margin: 0 0 14px;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--pc-ink-soft);
}

.page-contact .direct-main p:last-child {
  margin-bottom: 0;
}

.page-contact .checklist {
  list-style: none;
  margin: 18px 0 18px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .checklist li {
  position: relative;
  padding-left: 22px;
  font-size: 0.9375rem;
  line-height: 1.78;
  color: var(--pc-ink-soft);
}

.page-contact .checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.66em;
  width: 10px;
  height: 10px;
  background: var(--pitch-500);
  clip-path: polygon(0 0, 100% 0, 100% 100%);
}

.page-contact .checklist li strong {
  color: var(--ink-900);
  font-weight: 700;
}

.page-contact .direct-side {
  display: grid;
  gap: 16px;
}

.page-contact .side-card {
  background: #ffffff;
  border-top: 3px solid var(--pitch-500);
  padding: clamp(20px, 2.6vw, 28px);
}

.page-contact .side-card--tech {
  background: var(--tech-tint);
  border-top-color: var(--tech-600);
}

.page-contact .side-card h3 {
  margin: 0 0 10px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.125rem;
  line-height: 1.4;
  letter-spacing: -0.01em;
}

.page-contact .side-card p {
  margin: 0 0 10px;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--pc-ink-soft);
}

.page-contact .side-card p:last-child {
  margin-bottom: 0;
}

.page-contact .phone-line {
  margin: 2px 0 12px;
  font-size: clamp(1.375rem, 3.6vw, 1.875rem);
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--ink-900);
}

.page-contact .address-line {
  margin: 2px 0 12px;
  font-size: clamp(1rem, 1.9vw, 1.1875rem);
  font-weight: 700;
  line-height: 1.6;
  color: var(--ink-900);
}

/* ---------- 纠错流程 ---------- */

.page-contact .corrections {
  padding: clamp(30px, 5vw, 64px) 0 clamp(44px, 7vw, 88px);
}

.page-contact .corrections-grid {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
}

@media (min-width: 900px) {
  .page-contact .corrections-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: center;
  }
}

.page-contact .corrections-copy p {
  margin: 0 0 16px;
  font-size: 1rem;
  line-height: 1.9;
  color: var(--pc-ink-soft);
}

.page-contact .corrections-copy .checklist {
  margin-bottom: 0;
}

.page-contact .corrections-visual {
  margin: 0;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

.page-contact .corrections-visual img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.page-contact .steps {
  list-style: none;
  margin: clamp(32px, 5vw, 56px) 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-contact .step {
  position: relative;
  padding: 0 0 24px 30px;
}

.page-contact .step::after {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--pitch-500);
}

.page-contact .step::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 22px;
  bottom: 0;
  width: 2px;
  background: var(--pitch-tint);
}

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

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

@media (min-width: 860px) {
  .page-contact .steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
  }

  .page-contact .step {
    padding: 38px 22px 0 0;
  }

  .page-contact .step::after {
    top: 0;
    left: 0;
    width: 14px;
    height: 14px;
  }

  .page-contact .step::before {
    left: 0;
    right: 20px;
    top: 6px;
    bottom: auto;
    width: auto;
    height: 2px;
    background: var(--pitch-tint);
  }

  .page-contact .step:last-child::before {
    display: block;
  }
}

.page-contact .step__num {
  display: block;
  margin-bottom: 8px;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--pitch-700);
}

.page-contact .step h3 {
  margin: 0 0 8px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.0625rem;
  line-height: 1.45;
  letter-spacing: -0.01em;
}

.page-contact .step p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.78;
  color: var(--pc-ink-soft);
}

/* ---------- 引用与媒体（深色区） ---------- */

.page-contact .references {
  background: var(--ink-900);
  color: var(--paper-050);
  padding: clamp(64px, 8vw, 104px) 0 clamp(52px, 7vw, 88px);
  clip-path: polygon(0 42px, 100% 0, 100% calc(100% - 42px), 0 100%);
}

.page-contact .ref-grid {
  display: grid;
  gap: 18px;
}

@media (min-width: 820px) {
  .page-contact .ref-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-contact .ref-card {
  background: var(--slate-800);
  padding: clamp(22px, 3vw, 34px);
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 22px 100%, 0 calc(100% - 22px));
}

.page-contact .ref-card h3 {
  margin: 0 0 14px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(1.125rem, 1.9vw, 1.375rem);
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--pitch-500);
}

.page-contact .ref-card p {
  margin: 0 0 12px;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: rgba(244, 247, 244, 0.78);
}

.page-contact .ref-card p:last-child {
  margin-bottom: 0;
}

/* ---------- 答疑捷径 ---------- */

.page-contact .shortcut {
  padding: clamp(46px, 7vw, 90px) 0 clamp(36px, 5vw, 64px);
}

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

.page-contact .shortcut-list li {
  padding: 18px 0;
  border-bottom: 1px solid rgba(10, 14, 12, 0.12);
}

.page-contact .shortcut-list li:first-child {
  border-top: 1px solid rgba(10, 14, 12, 0.12);
}

.page-contact .shortcut-list__q {
  margin: 0 0 6px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.0625rem;
  line-height: 1.5;
  letter-spacing: -0.01em;
  color: var(--ink-900);
}

.page-contact .shortcut-list__a {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--pc-ink-soft);
}

.page-contact .shortcut-list__a a {
  color: var(--tech-700);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 140ms var(--ease);
}

.page-contact .shortcut-list__a a:hover,
.page-contact .shortcut-list__a a:focus-visible {
  color: var(--pitch-700);
}

.page-contact .shortcut-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin: clamp(24px, 3.4vw, 34px) 0 0;
}

.page-contact .shortcut-cta span {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--tile-400);
}

/* ---------- 声明与备案 ---------- */

.page-contact .legal-note {
  padding: 0 0 clamp(52px, 7vw, 92px);
}

.page-contact .legal-grid {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
}

@media (min-width: 900px) {
  .page-contact .legal-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

.page-contact .legal-copy p {
  margin: 0 0 14px;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--pc-ink-soft);
}

.page-contact .legal-copy p:last-child {
  margin-bottom: 0;
}

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

.page-contact .legal-links li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 12px;
  padding: 14px 16px;
  background: var(--pitch-tint);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
}

.page-contact .legal-links a {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9375rem;
  color: var(--pitch-700);
  text-decoration: none;
  transition: color 140ms var(--ease);
}

.page-contact .legal-links a:hover,
.page-contact .legal-links a:focus-visible {
  color: var(--tech-700);
}

.page-contact .legal-links span {
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--pc-ink-soft);
}

.page-contact .legal-icp {
  margin: clamp(26px, 3.6vw, 38px) 0 0;
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  color: var(--tile-400);
}

/* ---------- 动效降级 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    transition-duration: 0.01ms;
    animation-duration: 0.01ms;
    animation-iteration-count: 1;
  }
}