.page-contact {
  --ct-cream-line: #D9D3C4;
  --ct-muted: #5F6A63;
  --ct-ink-soft: #0E2419;
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  background: var(--ink);
  color: var(--text-on-dark);
  padding: clamp(18px, 3vw, 28px) 0 clamp(44px, 6vw, 88px);
}

.page-contact .ct-hero .z9-breadcrumb {
  margin-bottom: clamp(20px, 3vw, 36px);
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: 0.14em;
}

.page-contact .ct-hero .z9-breadcrumb a {
  color: var(--grey);
  text-decoration: none;
  transition: color 0.18s var(--ease);
}

.page-contact .ct-hero .z9-breadcrumb a:hover,
.page-contact .ct-hero .z9-breadcrumb a:focus-visible {
  color: var(--lime);
}

.page-contact .ct-hero__grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

.page-contact .ct-hero__lead {
  order: -1;
  min-width: 0;
}

.page-contact .ct-hero__title {
  margin: 0 0 14px;
  font-size: var(--fs-7);
  line-height: 1.04;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--text-on-dark);
  text-wrap: balance;
}

.page-contact .ct-hero__verdict {
  margin: 0 0 18px;
  font-size: var(--fs-5);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--lime);
}

.page-contact .ct-hero__verdict::before {
  content: "";
  display: inline-block;
  width: 22px;
  height: 2px;
  margin-right: 10px;
  vertical-align: middle;
  background: var(--lime);
}

.page-contact .ct-hero__lede {
  max-width: 62ch;
  color: var(--text-on-dark);
  opacity: 0.86;
  font-size: var(--fs-4);
}

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

.page-contact .z9-btn {
  border-radius: 0;
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
  padding-inline: 20px;
}

.page-contact .ct-hero__figure {
  margin-top: clamp(26px, 4vw, 42px);
}

.page-contact .ct-hero__figure .z9-figure__media {
  border: 1px solid var(--line);
}

.page-contact .ct-hero__figure .z9-figure__cap {
  margin-top: 10px;
  font-size: var(--fs-1);
  letter-spacing: 0.08em;
  color: var(--grey);
}

/* 左侧坐标索引 */
.page-contact .ct-index {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .ct-index__item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 4px 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-index__no {
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: 0.14em;
  color: var(--lime);
  line-height: 1.7;
}

.page-contact .ct-index__body {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.page-contact .ct-index__name {
  font-size: var(--fs-3);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-contact .ct-index__out {
  font-size: var(--fs-2);
  color: var(--grey);
  line-height: 1.6;
}

.page-contact .ct-hero__note {
  margin: 18px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--orange);
  font-size: var(--fs-2);
  color: var(--grey);
  line-height: 1.7;
}

/* ---------- 合作方式 ---------- */
.page-contact .ct-modes {
  background: var(--cream);
  color: var(--text-dark);
  padding: clamp(42px, 6vw, 84px) 0;
}

.page-contact .ct-modes__head {
  max-width: 66ch;
}

.page-contact .ct-modes__intro {
  color: var(--ct-muted);
  margin-top: 14px;
}

.page-contact .ct-modes__band {
  margin: clamp(24px, 4vw, 40px) 0 clamp(20px, 3vw, 28px);
}

.page-contact .ct-modes__band .z9-figure__media {
  border: 1px solid var(--ct-cream-line);
}

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

.page-contact .ct-modes__tabs {
  display: grid;
  gap: 0;
}

.page-contact .ct-modes__list {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.page-contact .ct-mode-tab {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 2px 12px;
  width: 100%;
  text-align: left;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--ct-cream-line);
  padding: 16px 14px;
  color: var(--text-dark);
  cursor: pointer;
  transition: background 0.18s var(--ease), color 0.18s var(--ease);
}

.page-contact .ct-mode-tab:hover {
  background: rgba(11, 31, 23, 0.06);
}

.page-contact .ct-mode-tab__no {
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: 0.14em;
  color: var(--ct-muted);
  padding-top: 4px;
}

.page-contact .ct-mode-tab__body {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.page-contact .ct-mode-tab__name {
  font-size: var(--fs-4);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-contact .ct-mode-tab__out {
  font-size: var(--fs-2);
  color: var(--ct-muted);
  line-height: 1.6;
}

.page-contact .ct-mode-tab[aria-selected="true"] {
  background: var(--ink);
  color: var(--text-on-dark);
}

.page-contact .ct-mode-tab[aria-selected="true"] .ct-mode-tab__no {
  color: var(--lime);
}

.page-contact .ct-mode-tab[aria-selected="true"] .ct-mode-tab__out {
  color: var(--grey);
}

.page-contact .ct-mode {
  margin-top: 22px;
  padding: 4px 0 4px clamp(16px, 3vw, 30px);
  border-left: 2px solid var(--orange);
}

.page-contact .ct-mode__title {
  margin: 0 0 10px;
  letter-spacing: -0.01em;
}

.page-contact .ct-mode__desc {
  color: var(--ct-muted);
  max-width: 58ch;
}

.page-contact .ct-mode__coord {
  margin: 20px 0 0;
}

.page-contact .ct-mode__coord .z9-coord__item {
  display: grid;
  gap: 4px;
  padding: 13px 0;
  border-top: 1px solid var(--ct-cream-line);
}

.page-contact .ct-mode__coord .z9-coord__item:last-child {
  border-bottom: 1px solid var(--ct-cream-line);
}

.page-contact .ct-mode__coord .z9-coord__key {
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: 0.14em;
  color: var(--ct-muted);
}

.page-contact .ct-mode__coord .z9-coord__val {
  margin: 0;
  font-size: var(--fs-3);
  color: var(--text-dark);
  line-height: 1.7;
}

/* ---------- 推进流程 ---------- */
.page-contact .ct-flow {
  background: var(--ink-2);
  color: var(--text-on-dark);
  padding: clamp(42px, 6vw, 84px) 0;
}

.page-contact .ct-flow .z9-eyebrow {
  color: var(--lime);
}

.page-contact .ct-flow__title {
  color: var(--text-on-dark);
  max-width: 24ch;
}

.page-contact .ct-flow__lede {
  max-width: 64ch;
  margin-top: 14px;
  color: var(--grey);
}

.page-contact .ct-flow__track {
  display: grid;
  gap: 0;
  margin-top: clamp(26px, 4vw, 42px);
  border-top: 0;
}

.page-contact .ct-step {
  position: relative;
  display: grid;
  gap: 6px;
  width: 100%;
  text-align: left;
  background: transparent;
  border: 0;
  border-top: 2px solid var(--line);
  padding: 20px 16px 18px 0;
  color: var(--text-on-dark);
  cursor: pointer;
  transition: border-color 0.18s var(--ease);
}

.page-contact .ct-step::after {
  content: "";
  position: absolute;
  top: -11px;
  left: 0;
  width: 1px;
  height: 20px;
  background: var(--line);
  transform: rotate(38deg);
  transform-origin: top left;
  transition: background 0.18s var(--ease);
}

.page-contact .ct-step:first-child::after {
  display: none;
}

.page-contact .ct-step__no {
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: 0.14em;
  color: var(--grey);
  transition: color 0.18s var(--ease);
}

.page-contact .ct-step__name {
  font-size: var(--fs-4);
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-contact .ct-step__when {
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: 0.1em;
  color: var(--grey);
}

.page-contact .ct-step:hover::after {
  background: var(--lime-soft);
}

.page-contact .ct-step[aria-selected="true"] {
  border-top-color: var(--orange);
}

.page-contact .ct-step[aria-selected="true"]::after {
  background: var(--orange);
}

.page-contact .ct-step[aria-selected="true"] .ct-step__no {
  color: var(--orange);
}

.page-contact .ct-step__panel {
  margin-top: 24px;
  padding: 18px 20px;
  border-left: 2px solid var(--orange);
  background: var(--ct-ink-soft);
}

.page-contact .ct-step__panel + .ct-step__panel {
  margin-top: 14px;
}

.page-contact .ct-step__label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: 0.14em;
  color: var(--lime);
}

.page-contact .ct-step__panel .z9-body {
  margin: 0;
  max-width: 68ch;
  color: var(--text-on-dark);
}

/* ---------- 常见问题 ---------- */
.page-contact .ct-faq {
  background: var(--cream);
  color: var(--text-dark);
  padding: clamp(42px, 6vw, 84px) 0;
}

.page-contact .ct-faq__grid {
  display: grid;
  gap: 0;
  margin-top: clamp(22px, 3vw, 34px);
  border-top: 1px solid var(--ct-cream-line);
}

.page-contact .ct-faq__item {
  padding: 20px 0;
  border-bottom: 1px solid var(--ct-cream-line);
  min-width: 0;
}

.page-contact .ct-faq__item .z9-h3 {
  margin: 0 0 10px;
  letter-spacing: -0.01em;
  position: relative;
  padding-left: 16px;
}

.page-contact .ct-faq__item .z9-h3::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 2px;
  background: var(--orange);
}

.page-contact .ct-faq__item .z9-body {
  margin: 0;
  color: var(--ct-muted);
}

.page-contact .ct-faq__item a {
  color: var(--text-dark);
  text-decoration: underline;
  text-decoration-color: var(--orange);
  text-underline-offset: 3px;
}

/* ---------- 联系渠道 ---------- */
.page-contact .ct-contact {
  background: var(--ink);
  color: var(--text-on-dark);
  padding: clamp(44px, 6vw, 88px) 0;
}

.page-contact .ct-contact .z9-eyebrow {
  color: var(--lime);
}

.page-contact .ct-contact__grid {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
}

.page-contact .ct-contact__lead .z9-h2 {
  color: var(--text-on-dark);
  margin-bottom: 14px;
}

.page-contact .ct-contact__lead .z9-body {
  color: var(--grey);
  max-width: 58ch;
}

.page-contact .ct-contact__lead .z9-body + .z9-body {
  margin-top: 14px;
}

.page-contact .ct-contact__lead a {
  color: var(--lime);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .ct-contact__file {
  border: 1px solid var(--lime);
  background: var(--ct-ink-soft);
  padding: clamp(18px, 3vw, 28px);
  min-width: 0;
}

.page-contact .ct-file__head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 16px;
  margin: 0 0 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: 0.14em;
  color: var(--lime);
}

.page-contact .ct-file__geo {
  color: var(--grey);
}

.page-contact .ct-file__list {
  margin: 0;
}

.page-contact .ct-file__row {
  display: grid;
  gap: 3px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--line);
}

.page-contact .ct-file__row:last-child {
  border-bottom: 0;
  padding-bottom: 4px;
}

.page-contact .ct-file__row dt {
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: 0.14em;
  color: var(--grey);
}

.page-contact .ct-file__row dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-3);
  line-height: 1.7;
  color: var(--text-on-dark);
  overflow-wrap: anywhere;
}

.page-contact .ct-file__note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: var(--fs-2);
  line-height: 1.7;
  color: var(--grey);
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-contact .ct-file__row {
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 14px;
    align-items: baseline;
  }

  .page-contact .ct-mode__coord .z9-coord__item {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 14px;
    align-items: baseline;
  }
}

@media (min-width: 760px) {
  .page-contact .ct-flow__track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .ct-flow__panels {
    margin-top: 6px;
  }

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

  .page-contact .ct-faq__item {
    padding: 22px 24px 8px 22px;
    border-bottom: 0;
    border-right: 1px solid var(--ct-cream-line);
  }

  .page-contact .ct-faq__item:last-child {
    border-right: 0;
    padding-right: 0;
  }
}

@media (min-width: 900px) {
  .page-contact .ct-hero__grid {
    grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
    gap: clamp(30px, 4vw, 64px);
    align-items: start;
  }

  .page-contact .ct-hero__lead {
    order: 0;
  }

  .page-contact .ct-modes__tabs {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    border-top: 1px solid var(--ct-cream-line);
  }

  .page-contact .ct-mode {
    margin-top: 0;
    padding-top: 6px;
    padding-bottom: 6px;
  }

  .page-contact .ct-contact__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    align-items: start;
  }
}

@media (min-width: 1180px) {
  .page-contact .ct-hero__title {
    max-width: 18ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-mode-tab,
  .page-contact .ct-step,
  .page-contact .ct-step::after,
  .page-contact .ct-hero .z9-breadcrumb a {
    transition: none;
  }
}
<<<END>>>