.page-contact {
  --pc-panel-bg: linear-gradient(180deg, rgba(27, 38, 36, .94) 0%, rgba(17, 20, 23, .98) 100%);
  --pc-gap: clamp(20px, 3vw, 32px);
  display: block;
  background: var(--ink);
  color: var(--silver);
  overflow-x: hidden;
}

.page-contact .shell {
  width: 100%;
  max-width: var(--shell-w);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ---------- Hero ---------- */
.page-contact .contact-hero {
  position: relative;
  padding-block: clamp(40px, 6vw, 80px) clamp(44px, 7vw, 92px);
  background:
    radial-gradient(120% 96% at 88% 0%, rgba(15, 59, 52, .85) 0%, rgba(11, 31, 26, 0) 64%),
    linear-gradient(168deg, #0B1F1A 0%, #07130F 100%);
  border-bottom: 2px solid var(--line-strong);
}

.page-contact .breadcrumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--mist);
  margin-bottom: clamp(28px, 4vw, 52px);
}

.page-contact .breadcrumbs__link {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

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

.page-contact .breadcrumbs__sep {
  color: var(--line-strong);
}

.page-contact .hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(32px, 5vw, 56px);
  align-items: end;
}

.page-contact .eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--lime);
  margin: 0 0 14px;
}

.page-contact h1 {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 6vw, 58px);
  line-height: 1.08;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-contact .section-lede {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.85;
  color: var(--silver);
}

.page-contact .hero-lede {
  max-width: 54ch;
}

.page-contact .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.page-contact .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 24px;
  border: 2px solid transparent;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), background-color var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .btn--primary {
  background: var(--orange);
  color: #1A0C04;
  box-shadow: var(--shadow-hard);
}

.page-contact .btn--primary:hover,
.page-contact .btn--primary:focus-visible {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hard-lg);
}

.page-contact .btn--ghost {
  background: transparent;
  border-color: var(--line-strong);
  color: var(--paper);
}

.page-contact .btn--ghost:hover,
.page-contact .btn--ghost:focus-visible {
  transform: translateY(-2px);
  border-color: var(--lime);
  color: var(--lime);
}

.page-contact .btn:focus-visible,
.page-contact .text-link:focus-visible,
.page-contact .footnote-link:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}

.page-contact .coord {
  border: 2px solid var(--line-strong);
  background: var(--pc-panel-bg);
  box-shadow: var(--shadow-hard);
  padding: 22px 24px;
  display: grid;
  gap: 0;
}

.page-contact .coord__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

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

.page-contact .coord__row:first-child {
  padding-top: 0;
}

.page-contact .coord__key {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--mist);
  letter-spacing: .02em;
}

.page-contact .coord__val {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--lime);
  white-space: nowrap;
}

/* ---------- Sections ---------- */
.page-contact .section {
  padding-block: clamp(48px, 7vw, 92px);
}

.page-contact .section + .section {
  border-top: 1px solid var(--line);
}

.page-contact .section-head {
  max-width: 62ch;
  margin-bottom: clamp(28px, 4vw, 46px);
}

.page-contact .chapter-no {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: .2em;
  color: var(--lime);
  margin: 0 0 12px;
}

.page-contact .section-title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(23px, 3.6vw, 34px);
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-contact .section-head .section-lede {
  max-width: 56ch;
}

.page-contact .text-link {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(198, 255, 61, .45);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .text-link:hover {
  border-color: var(--lime);
}

.page-contact .inline-note {
  margin: clamp(26px, 3vw, 38px) 0 0;
  padding-left: 18px;
  border-left: 2px solid var(--lime);
  font-size: 15px;
  line-height: 1.8;
  color: var(--silver);
  max-width: 70ch;
}

/* ---------- 01 合作类型 ---------- */
.page-contact .coop-list {
  display: grid;
  gap: 20px;
}

.page-contact .coop-item {
  position: relative;
  border: 2px solid var(--line-strong);
  background: var(--card);
  box-shadow: var(--shadow-hard);
  padding: 26px 24px 26px 26px;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-contact .coop-item:hover,
.page-contact .coop-item:focus-visible {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hard-lg);
  border-color: var(--lime);
  background: var(--ink-deep);
}

.page-contact .coop-item:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}

.page-contact .coop-item__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .2em;
  color: var(--lime);
  margin-bottom: 12px;
}

.page-contact .coop-item__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(18px, 2.2vw, 22px);
  color: var(--paper);
}

.page-contact .coop-item__text {
  margin: 0 0 16px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--silver);
  max-width: 74ch;
}

.page-contact .coop-item__fit {
  margin: 0;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
  padding-top: 14px;
  border-top: 1px dashed var(--line-strong);
}

.page-contact .tag {
  display: inline-block;
  flex: none;
  padding: 3px 10px;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
}

.page-contact .tag--lime {
  background: var(--lime);
  color: #10240A;
}

/* ---------- 联赛带 ---------- */
.page-contact .league-band {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 20px;
  padding: 16px var(--gutter);
  background: var(--panel);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .league-band__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--mist);
  text-transform: uppercase;
}

.page-contact .league-band__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .league-band__item {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .1em;
  color: var(--silver);
  border: 1px solid var(--line-strong);
  padding: 4px 10px;
  border-radius: var(--radius);
}

/* ---------- 02 流程 ---------- */
.page-contact .coop-steps {
  list-style: none;
  margin: 0 0 clamp(32px, 4vw, 52px);
  padding: 0;
  display: grid;
  gap: 0;
}

.page-contact .coop-steps > li {
  padding: 22px 0;
  border-top: 1px solid var(--line);
}

.page-contact .coop-steps > li:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-contact .step > summary {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  column-gap: 14px;
  row-gap: 5px;
  cursor: pointer;
  list-style: none;
  padding: 0;
}

.page-contact .step > summary::-webkit-details-marker {
  display: none;
}

.page-contact .step > summary::marker {
  content: "";
}

.page-contact .step > summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 4px;
}

.page-contact .step__node {
  grid-row: 1 / span 3;
  align-self: start;
  width: 20px;
  height: 20px;
  margin-top: 3px;
  border: 2px solid var(--lime);
  background: var(--ink);
  transition: background-color var(--dur) var(--ease);
}

.page-contact .step[open] .step__node,
.page-contact .step > summary:hover .step__node {
  background: var(--lime);
}

.page-contact .step__kicker {
  grid-column: 2;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--mist);
}

.page-contact .step__title {
  grid-column: 2;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 19px;
  color: var(--paper);
}

.page-contact .step__meta {
  grid-column: 2;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--amber);
}

.page-contact .step__body {
  padding: 14px 0 0 36px;
}

.page-contact .step__body p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--silver);
}

.page-contact .step__output {
  display: inline-block;
  margin: 0;
  padding-left: 12px;
  border-left: 2px solid var(--amber);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  color: var(--amber);
}

.page-contact .media {
  margin: 0;
  border: 2px solid var(--line-strong);
  background: var(--panel);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}

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

.page-contact .media__caption {
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--mist);
  border-top: 1px solid var(--line);
  background: var(--ink-deep);
}

/* ---------- 03 材料清单 ---------- */
.page-contact .materials-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
  align-items: start;
}

.page-contact .checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .checklist__item {
  border: 2px solid var(--line-strong);
  background: var(--card);
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-contact .checklist__item:hover {
  border-color: var(--mist);
}

.page-contact .checklist__label {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
}

.page-contact .checklist__box {
  appearance: none;
  -webkit-appearance: none;
  flex: none;
  width: 20px;
  height: 20px;
  margin: 3px 0 0;
  border: 2px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--ink-deep);
  display: grid;
  place-content: center;
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-contact .checklist__box::after {
  content: "";
  width: 10px;
  height: 5px;
  border-left: 2px solid #10240A;
  border-bottom: 2px solid #10240A;
  transform: rotate(-45deg) translateY(-1px);
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
}

.page-contact .checklist__box:checked {
  background: var(--lime);
  border-color: var(--lime);
}

.page-contact .checklist__box:checked::after {
  opacity: 1;
}

.page-contact .checklist__box:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}

.page-contact .checklist__text {
  display: block;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .checklist__text strong {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 900;
  color: var(--paper);
}

.page-contact .pitch-frame {
  border: 2px solid var(--line-strong);
  box-shadow: var(--shadow-hard);
  background: var(--pc-panel-bg);
}

.page-contact .materials-panel {
  padding: 26px 24px;
}

.page-contact .materials-panel .eyebrow {
  margin-bottom: 12px;
}

.page-contact .materials-panel__text {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--silver);
}

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

.page-contact .materials-panel__list li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--silver);
}

.page-contact .materials-panel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 10px;
  height: 10px;
  border: 1.5px solid var(--lime);
}

.page-contact .materials-panel__note {
  margin: 0;
  padding-top: 16px;
  border-top: 1px dashed var(--line-strong);
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 04 服务地区 ---------- */
.page-contact .region-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
  align-items: start;
}

.page-contact .region-copy p {
  margin: 0 0 16px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--silver);
  max-width: 62ch;
}

.page-contact .region-copy .section-head {
  margin-bottom: 22px;
}

.page-contact .region-facts {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
}

.page-contact .region-facts li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .region-facts__k {
  font-size: 13.5px;
  color: var(--mist);
}

.page-contact .region-facts__v {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--lime);
  white-space: nowrap;
}

/* ---------- 05 联系渠道 ---------- */
.page-contact .section--contact {
  background: var(--ink-deep);
  border-top: 2px solid var(--line-strong);
}

.page-contact .channel-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-contact .channel-card {
  border: 2px solid var(--line-strong);
  background: var(--card);
  box-shadow: var(--shadow-hard);
  padding: 24px 22px;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

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

.page-contact .channel-card:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}

.page-contact .channel-card .eyebrow {
  margin-bottom: 12px;
  color: var(--amber);
}

.page-contact .channel-card__value {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(17px, 2.1vw, 21px);
  line-height: 1.35;
  color: var(--paper);
  word-break: break-word;
}

.page-contact .channel-card__value--mail {
  font-family: var(--font-mono);
  font-size: clamp(14px, 1.6vw, 17px);
  letter-spacing: -.01em;
  word-break: break-all;
}

.page-contact .channel-card__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .contact-base {
  margin-top: clamp(28px, 4vw, 44px);
  padding-top: 20px;
  border-top: 1px solid var(--line-strong);
  display: flex;
  flex-wrap: wrap;
  gap: 12px 34px;
}

.page-contact .contact-base__item {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.page-contact .contact-base__k {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--mist);
}

.page-contact .contact-base__v {
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: var(--silver);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-contact .coop-list {
    gap: 24px;
  }

  .page-contact .checklist {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 20px;
  }

  .page-contact .region-facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 32px;
  }
}

@media (min-width: 900px) {
  .page-contact .hero-grid {
    grid-template-columns: 7fr 5fr;
    gap: 56px;
  }

  .page-contact .materials-split {
    grid-template-columns: 7fr 5fr;
  }

  .page-contact .region-split {
    grid-template-columns: 4fr 8fr;
    align-items: center;
  }

  .page-contact .channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }

  .page-contact .coop-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    column-gap: 26px;
    position: relative;
  }

  .page-contact .coop-steps::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 43px;
    height: 2px;
    background: linear-gradient(90deg, var(--lime) 0 22%, var(--line-strong) 22% 100%);
  }

  .page-contact .coop-steps > li {
    border-top: 0;
    padding: 34px 0 0;
  }

  .page-contact .step__body {
    padding-left: 36px;
  }
}

@media (min-width: 1100px) {
  .page-contact .coop-item {
    padding: 30px 32px 30px 34px;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-contact .btn,
  .page-contact .coop-item,
  .page-contact .channel-card,
  .page-contact .checklist__item,
  .page-contact .step__node,
  .page-contact .checklist__box::after {
    transition: none;
  }
}
<<<END>>>