.page-contact {
  background: var(--paper);
  color: var(--ink);
}

.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 18px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--ink-soft);
}

.page-contact .breadcrumb a {
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--speed), border-color var(--speed);
}

.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  color: var(--vermilion-dark);
  border-bottom-color: var(--copper);
}

.page-contact .breadcrumb__sep {
  color: var(--copper);
}

/* 首屏 */
.page-contact .contact-hero {
  padding: 26px 0 34px;
  border-bottom: 1px solid var(--grid);
}

.page-contact .contact-hero__inner {
  max-width: 900px;
}

.page-contact .contact-hero h1.display {
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(28px, 8vw, 58px);
  line-height: 1.08;
  letter-spacing: -.02em;
  color: var(--ink);
  margin: 10px 0 18px;
}

.page-contact .contact-hero .lede {
  font-family: var(--font-serif);
  font-size: 17px;
  line-height: 1.85;
  color: var(--ink-soft);
  max-width: 46em;
  margin: 0;
}

.page-contact .meta-line {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.8;
  letter-spacing: .03em;
  color: var(--ink-soft);
  margin-top: 16px;
}

.page-contact .meta-line a {
  color: var(--vermilion-dark);
  text-decoration: none;
  border-bottom: 1px solid var(--copper);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

/* 受理范围 */
.page-contact .contact-scope {
  padding: 42px 0 4px;
}

.page-contact .section-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin: 0 0 14px;
}

.page-contact .section-head__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--copper);
  flex: 0 0 auto;
}

.page-contact .section-head h2 {
  font-family: var(--font-sans);
  font-size: clamp(21px, 5vw, 30px);
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.28;
  color: var(--ink);
  margin: 0;
}

.page-contact .copy {
  font-family: var(--font-serif);
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-soft);
  max-width: 62ch;
}

.page-contact .copy p {
  margin: 0 0 1em;
}

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

.page-contact .copy a {
  color: var(--vermilion-dark);
  text-decoration: none;
  border-bottom: 1px solid var(--copper);
}

.page-contact .contact-scope__grid {
  margin-top: 26px;
  align-items: stretch;
}

.page-contact .contact-scope__card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px 22px 22px;
  background: var(--paper-2);
  border: 1px solid var(--grid);
  border-top: 4px solid var(--vermilion);
}

.page-contact .contact-scope__card[data-tone="copper"] {
  border-top-color: var(--copper);
}

.page-contact .contact-scope__card[data-tone="teal"] {
  border-top-color: var(--teal);
}

.page-contact .contact-scope__tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--vermilion-dark);
}

.page-contact .contact-scope__card[data-tone="copper"] .contact-scope__tag {
  color: var(--copper);
}

.page-contact .contact-scope__card[data-tone="teal"] .contact-scope__tag {
  color: var(--teal);
}

.page-contact .contact-scope__card h3 {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-contact .contact-scope__card > p {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-contact .contact-scope__list {
  list-style: none;
  margin: auto 0 0;
  padding: 14px 0 0;
  border-top: 1px dashed var(--grid);
  font-family: var(--font-sans);
  font-size: 13.5px;
  line-height: 2;
  color: var(--ink);
}

.page-contact .contact-scope__list li {
  position: relative;
  padding-left: 16px;
}

.page-contact .contact-scope__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .82em;
  width: 7px;
  height: 7px;
  background: var(--copper);
  clip-path: polygon(0 0, 100% 0, 100% 100%);
}

/* 左右分屏 */
.page-contact .contact-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin-top: 44px;
}

.page-contact .contact-rail {
  position: relative;
  background: var(--indigo);
  color: var(--on-dark);
  padding: 34px 22px 38px;
  border-top: 4px solid var(--copper);
}

.page-contact .contact-rail__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .2;
  pointer-events: none;
}

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

.page-contact .contact-rail .panel__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--copper-soft);
}

.page-contact .contact-rail__title {
  margin: 0 0 22px;
  font-family: var(--font-sans);
  font-size: clamp(21px, 5.4vw, 30px);
  font-weight: 800;
  line-height: 1.24;
  letter-spacing: -.02em;
  color: var(--paper-2);
}

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

.page-contact .contact-lines__item {
  padding: 14px 0;
  border-bottom: 1px solid rgba(233, 227, 214, .18);
}

.page-contact .contact-lines__item:first-child {
  border-top: 1px solid rgba(233, 227, 214, .18);
}

.page-contact .contact-lines__label {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-sans);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--on-dark-soft);
}

.page-contact .contact-lines__value {
  display: block;
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.7;
  color: var(--on-dark);
  word-break: break-word;
}

.page-contact .contact-lines__value.num {
  font-family: var(--font-mono);
  letter-spacing: .01em;
}

.page-contact .contact-rail__note {
  margin: 20px 0 0;
  font-family: var(--font-serif);
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--on-dark-soft);
}

.page-contact .contact-main {
  padding: 36px 0 12px;
}

/* 正文区块 */
.page-contact .contact-block {
  padding-bottom: 38px;
  margin-bottom: 38px;
  border-bottom: 1px solid var(--grid);
}

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

.page-contact .contact-steps {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
}

.page-contact .contact-step {
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 12px;
  padding: 18px 0;
  border-top: 1px solid var(--grid);
}

.page-contact .contact-step:last-child {
  border-bottom: 1px solid var(--grid);
}

.page-contact .contact-step__num {
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--copper);
}

.page-contact .contact-step__num::before {
  content: "";
  display: block;
  width: 15px;
  height: 2px;
  margin-bottom: 8px;
  background: var(--copper);
  transform: rotate(-22deg);
  transform-origin: left center;
}

.page-contact .contact-step__body h3 {
  margin: 0 0 6px;
  font-family: var(--font-sans);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-contact .contact-step__body p {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-contact .contact-figure {
  margin: 26px 0 0;
  background: var(--paper-2);
  border: 1px solid var(--grid);
}

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

.page-contact .contact-figure .media-frame__caption {
  margin: 0;
  padding: 10px 14px;
  border-top: 1px solid var(--grid);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .03em;
  color: var(--ink-soft);
}

/* 图表咨询字段表 */
.page-contact .contact-fields {
  margin-top: 22px;
  border-top: 1px solid var(--grid);
}

.page-contact .contact-field {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 4px 12px;
  padding: 15px 0;
  border-bottom: 1px solid var(--grid);
}

.page-contact .contact-field__key {
  grid-row: span 2;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.9;
  color: var(--copper);
}

.page-contact .contact-field__label {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.page-contact .contact-field__hint {
  font-family: var(--font-serif);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-contact .contact-field__hint a {
  color: var(--vermilion-dark);
  text-decoration: none;
  border-bottom: 1px solid var(--copper);
}

/* 协作清单 */
.page-contact .contact-collab {
  margin: 22px 0 0;
  border-top: 1px solid var(--grid);
}

.page-contact .contact-collab__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 15px 0;
  border-bottom: 1px solid var(--grid);
}

.page-contact .contact-collab dt {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.page-contact .contact-collab dd {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* 回复节奏 */
.page-contact .contact-reply {
  margin-top: 18px;
  padding: 22px 20px;
  background: var(--paper-2);
  border-left: 4px solid var(--vermilion);
}

.page-contact .contact-reply__line {
  position: relative;
  margin: 0 0 12px;
  padding-left: 20px;
  font-family: var(--font-serif);
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ink);
}

.page-contact .contact-reply__line:last-child {
  margin-bottom: 0;
}

.page-contact .contact-reply__line::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 9px;
  height: 9px;
  background: var(--copper);
  clip-path: polygon(0 0, 100% 0, 100% 100%);
}

/* 收尾 */
.page-contact .contact-cta {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 26px 22px;
  background: var(--teal);
  color: var(--paper-2);
}

.page-contact .contact-cta__title {
  margin: 0;
  font-family: var(--font-sans);
  font-size: clamp(20px, 4.6vw, 26px);
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.3;
  color: var(--paper-2);
}

.page-contact .contact-cta__text {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--on-dark);
}

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

.page-contact .contact-cta .btn--ghost {
  color: var(--paper-2);
  border-color: var(--copper-soft);
}

.page-contact .contact-cta .btn--ghost:hover,
.page-contact .contact-cta .btn--ghost:focus-visible {
  color: var(--ink);
  background: var(--copper-soft);
}

/* 响应式 */
@media (min-width: 620px) {
  .page-contact .contact-collab__row {
    grid-template-columns: 210px 1fr;
    gap: 0 24px;
    align-items: baseline;
  }

  .page-contact .contact-field {
    grid-template-columns: 42px 1fr;
  }

  .page-contact .contact-cta {
    padding: 30px 30px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero {
    padding: 34px 0 46px;
  }

  .page-contact .contact-scope {
    padding-top: 52px;
  }

  .page-contact .contact-split {
    grid-template-columns: minmax(280px, 32%) 1fr;
    margin-top: 52px;
  }

  .page-contact .contact-rail {
    padding: 46px 32px;
  }

  .page-contact .contact-rail__inner {
    position: sticky;
    top: 104px;
  }

  .page-contact .contact-main {
    padding: 48px 0 24px 56px;
  }

  .page-contact .contact-scope__grid {
    gap: 20px;
  }
}

@media (min-width: 1180px) {
  .page-contact .contact-scope__card {
    padding: 28px 26px 26px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .breadcrumb a,
  .page-contact .contact-cta .btn--ghost {
    transition: none;
  }
}