.page-contact {
  --coop-gap: clamp(20px, 3vw, 42px);
  --coop-cut: polygon(12px 0, 100% 0, calc(100% - 12px) 100%, 0 100%);
  background: var(--space-black);
  color: var(--white);
  overflow-x: hidden;
}

.page-contact > .content-wrap {
  padding-top: 18px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: clamp(26px, 4vw, 56px) clamp(38px, 6vw, 84px);
  border-bottom: 2px solid var(--line-strong);
  background:
    radial-gradient(900px 420px at 82% -12%, rgba(108, 59, 255, 0.42), transparent 68%),
    radial-gradient(640px 300px at 8% 6%, rgba(0, 229, 255, 0.16), transparent 70%),
    var(--space-black);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: -20% -25% auto auto;
  width: 74%;
  height: 150%;
  z-index: -1;
  pointer-events: none;
  background: linear-gradient(102deg, transparent 40%, rgba(108, 59, 255, 0.22) 49%, rgba(0, 229, 255, 0.13) 57%, transparent 66%);
  transform: skewX(-6deg);
}

.page-contact .hero-grid {
  display: grid;
  gap: var(--coop-gap);
  align-items: center;
}

.page-contact .hero-copy h1 {
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(29px, 5vw, 58px);
  line-height: 1.08;
  letter-spacing: 0.02em;
  margin: 14px 0 18px;
  color: var(--white);
}

.page-contact .hero-lead {
  margin: 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--steel);
}

.page-contact .hero-facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(94px, 1fr));
  gap: 12px;
  margin: 24px 0 0;
  padding: 0;
}

.page-contact .hero-facts > div {
  padding-left: 12px;
  border-left: 2px solid var(--purple);
}

.page-contact .hero-facts dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--steel);
}

.page-contact .hero-facts dd {
  margin: 5px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(22px, 2.6vw, 30px);
  line-height: 1;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-contact .hero-facts dd span {
  font-size: 0.46em;
  margin-left: 3px;
  color: var(--steel);
}

.page-contact .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-contact .hero-visual {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 2px solid var(--line-strong);
  background: var(--panel);
  box-shadow: var(--shadow-hard);
  transform: rotate(-1.2deg);
}

.page-contact .hero-visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(1.1) contrast(1.05);
}

.page-contact .media-caption {
  position: static;
  display: block;
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  background: var(--panel);
  color: var(--steel);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  line-height: 1.6;
}

/* ---------- 通用区块 ---------- */
.page-contact .coop-directions,
.page-contact .coop-flow,
.page-contact .capability,
.page-contact .coop-prep {
  padding-block: clamp(46px, 6vw, 92px);
}

.page-contact .section-head h2,
.page-contact .prep-intro h2 {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(23px, 3.3vw, 40px);
  line-height: 1.16;
  letter-spacing: 0.01em;
  margin: 10px 0 0;
  color: var(--white);
}

.page-contact .section-lead {
  max-width: 62ch;
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--steel);
}

/* ---------- 合作方向切换 ---------- */
.page-contact .coop-directions {
  background: linear-gradient(180deg, var(--space-black) 0%, #0d0d17 45%, var(--space-black) 100%);
}

.page-contact .coop-tabs {
  margin-top: clamp(24px, 3.4vw, 42px);
}

.page-contact .tab-input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.page-contact .tab-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-contact .tab-label {
  padding: 10px 18px;
  border: 2px solid var(--line-strong);
  background: var(--panel);
  color: var(--steel);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  cursor: pointer;
  user-select: none;
  clip-path: var(--coop-cut);
  transition: color var(--ease), border-color var(--ease), background var(--ease), transform var(--ease);
}

.page-contact .tab-label:hover {
  color: var(--white);
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-contact #coop-1:checked ~ .tab-bar .tab-label[for="coop-1"],
.page-contact #coop-2:checked ~ .tab-bar .tab-label[for="coop-2"],
.page-contact #coop-3:checked ~ .tab-bar .tab-label[for="coop-3"],
.page-contact #coop-4:checked ~ .tab-bar .tab-label[for="coop-4"],
.page-contact #coop-5:checked ~ .tab-bar .tab-label[for="coop-5"] {
  background: var(--purple);
  border-color: var(--purple);
  color: var(--white);
}

.page-contact #coop-1:focus-visible ~ .tab-bar .tab-label[for="coop-1"],
.page-contact #coop-2:focus-visible ~ .tab-bar .tab-label[for="coop-2"],
.page-contact #coop-3:focus-visible ~ .tab-bar .tab-label[for="coop-3"],
.page-contact #coop-4:focus-visible ~ .tab-bar .tab-label[for="coop-4"],
.page-contact #coop-5:focus-visible ~ .tab-bar .tab-label[for="coop-5"] {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-contact .tab-panels {
  margin-top: 20px;
}

.page-contact .tab-panel {
  display: none;
}

.page-contact #coop-1:checked ~ .tab-panels .tab-panel:nth-child(1),
.page-contact #coop-2:checked ~ .tab-panels .tab-panel:nth-child(2),
.page-contact #coop-3:checked ~ .tab-panels .tab-panel:nth-child(3),
.page-contact #coop-4:checked ~ .tab-panels .tab-panel:nth-child(4),
.page-contact #coop-5:checked ~ .tab-panels .tab-panel:nth-child(5) {
  display: block;
}

.page-contact .direction-card {
  position: relative;
  display: grid;
  gap: 18px;
  padding: clamp(20px, 3vw, 36px);
  border: 2px solid var(--line-strong);
  border-left: 6px solid var(--purple);
  background: linear-gradient(152deg, #161626 0%, var(--panel) 62%);
  box-shadow: var(--shadow-hard);
}

.page-contact .dir-main h3 {
  margin: 12px 0 12px;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(20px, 2.4vw, 28px);
  line-height: 1.25;
  color: var(--white);
}

.page-contact .dir-main p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--steel);
}

.page-contact .dir-points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-contact .dir-points li {
  position: relative;
  padding-left: 20px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  line-height: 1.6;
  color: var(--white);
}

.page-contact .dir-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  background: var(--cyan);
  clip-path: polygon(0 0, 100% 50%, 0 100%);
}

/* ---------- 合作流程 ---------- */
.page-contact .flow-strip {
  list-style: none;
  margin: clamp(24px, 3.4vw, 42px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .flow-step {
  position: relative;
  padding: 22px 20px 26px;
  border: 2px solid var(--line-strong);
  background: var(--panel);
  transition: transform var(--ease), border-color var(--ease), background var(--ease);
}

.page-contact .flow-step:hover,
.page-contact .flow-step:focus-within {
  background: #1a1a2c;
  border-color: var(--cyan);
  transform: translateY(-4px);
}

.page-contact .flow-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(30px, 3.4vw, 42px);
  font-weight: 700;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px var(--cyan);
  letter-spacing: 0.02em;
}

.page-contact .flow-step h3 {
  margin: 12px 0 8px;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 19px;
  letter-spacing: 0.04em;
  color: var(--white);
}

.page-contact .flow-step p {
  margin: 0 0 14px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--steel);
}

.page-contact .flow-meta {
  display: inline-block;
  padding: 4px 10px;
  border: 1px solid rgba(255, 92, 26, 0.6);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--orange);
}

.page-contact .flow-figure {
  margin: clamp(26px, 3.4vw, 44px) 0 0;
  overflow: hidden;
  border: 2px solid var(--line-strong);
  background: var(--panel);
  transform: rotate(0.7deg);
}

.page-contact .flow-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 7 / 4;
  object-fit: cover;
}

/* ---------- 服务能力 ---------- */
.page-contact .capability {
  background:
    radial-gradient(700px 300px at 12% 100%, rgba(0, 229, 255, 0.09), transparent 70%),
    #0b0b14;
  border-top: 2px solid var(--line);
  border-bottom: 2px solid var(--line);
}

.page-contact .cap-band {
  display: grid;
  gap: 2px;
  margin: clamp(24px, 3.4vw, 42px) 0 0;
  padding: 2px;
  background: var(--line-strong);
  list-style: none;
}

.page-contact .cap-item {
  padding: 22px 20px;
  background: var(--space-black);
  border-left: 3px solid var(--purple);
}

.page-contact .cap-item dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--steel);
}

.page-contact .cap-item dd {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(30px, 3.6vw, 44px);
  line-height: 1;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-contact .cap-unit {
  font-family: var(--font-body);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--steel);
  margin-left: 6px;
}

.page-contact .cap-notes {
  display: grid;
  gap: 16px;
  margin-top: clamp(22px, 3vw, 34px);
}

.page-contact .cap-notes p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--steel);
}

/* ---------- 对接方式 ---------- */
.page-contact .coop-contact {
  padding-block: clamp(46px, 6vw, 92px);
}

.page-contact .contact-grid {
  display: grid;
  gap: var(--coop-gap);
}

.page-contact .contact-card {
  padding: clamp(22px, 3.4vw, 42px);
  background: var(--cream);
  color: var(--ink);
  border: 3px solid var(--ink);
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.6);
}

.page-contact .contact-card .eyebrow {
  color: rgba(34, 23, 8, 0.55);
}

.page-contact .contact-card h2 {
  margin: 10px 0 14px;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(23px, 3.2vw, 38px);
  line-height: 1.16;
  color: var(--ink);
}

.page-contact .contact-lead {
  margin: 0 0 8px;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(34, 23, 8, 0.78);
}

.page-contact .contact-rows {
  margin-top: 12px;
}

.page-contact .contact-row {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px dashed rgba(34, 23, 8, 0.3);
}

.page-contact .contact-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: rgba(34, 23, 8, 0.55);
}

.page-contact .contact-value {
  font-size: 16.5px;
  line-height: 1.6;
  word-break: break-word;
  color: var(--ink);
}

.page-contact .contact-card a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.page-contact .contact-card a:hover {
  color: var(--purple);
}

.page-contact .contact-card a:focus-visible {
  outline: 2px solid var(--purple);
  outline-offset: 3px;
}

.page-contact .contact-note {
  margin: 16px 0 0;
  padding: 12px 14px;
  background: rgba(255, 92, 26, 0.14);
  border-left: 4px solid var(--orange);
  font-size: 14px;
  line-height: 1.7;
  color: rgba(34, 23, 8, 0.86);
}

.page-contact .contact-fine {
  margin: 14px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(34, 23, 8, 0.66);
}

.page-contact .request-aside {
  padding: clamp(20px, 3vw, 30px);
  border: 2px solid var(--line-strong);
  border-top: 6px solid var(--purple);
  background: linear-gradient(165deg, #181829 0%, var(--panel) 70%);
  box-shadow: var(--shadow-hard);
}

.page-contact .request-aside h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(19px, 2.2vw, 24px);
  letter-spacing: 0.03em;
  color: var(--white);
}

.page-contact .request-list {
  list-style: none;
  margin: 18px 0 22px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .request-list li {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 8px;
  align-items: start;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--steel);
}

.page-contact .request-idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--orange);
  padding-top: 3px;
}

.page-contact .request-btn {
  display: block;
  width: 100%;
  text-align: center;
}

/* ---------- 合作前准备 ---------- */
.page-contact .prep-grid {
  display: grid;
  gap: var(--coop-gap);
}

.page-contact .prep-intro p {
  margin: 14px 0 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--steel);
}

.page-contact .prep-links a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, 0.45);
}

.page-contact .prep-links a:hover {
  border-bottom-color: var(--cyan);
}

.page-contact .prep-links a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-contact .prep-list {
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-contact .prep-item {
  border: 2px solid var(--line-strong);
  background: var(--panel);
  transition: border-color var(--ease), background var(--ease);
}

.page-contact .prep-item:hover {
  border-color: rgba(0, 229, 255, 0.55);
}

.page-contact .prep-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--white);
}

.page-contact .prep-item summary::-webkit-details-marker {
  display: none;
}

.page-contact .prep-item summary::after {
  content: "+";
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
}

.page-contact .prep-item[open] summary::after {
  content: "−";
  color: var(--orange);
}

.page-contact .prep-item[open] summary {
  border-bottom: 1px solid var(--line);
}

.page-contact .prep-item summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -3px;
}

.page-contact .prep-item p {
  margin: 0;
  padding: 14px 18px 18px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--steel);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-contact .contact-row {
    grid-template-columns: 72px minmax(0, 1fr);
    align-items: baseline;
    gap: 18px;
  }

  .page-contact .direction-card {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: start;
  }
}

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

  .page-contact .flow-step {
    clip-path: var(--coop-cut);
    margin-left: -14px;
    padding-inline: 30px;
  }

  .page-contact .flow-step:first-child {
    margin-left: 0;
  }

  .page-contact .cap-band {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .cap-notes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }
}

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

  .page-contact .contact-grid {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    align-items: start;
  }

  .page-contact .prep-grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .tab-label,
  .page-contact .flow-step,
  .page-contact .prep-item,
  .page-contact .hero-visual,
  .page-contact .flow-figure {
    transition: none;
  }

  .page-contact .tab-label:hover,
  .page-contact .flow-step:hover,
  .page-contact .flow-step:focus-within {
    transform: none;
  }
}
<<<PAGE_CSS_END>>>