.page-contact {
  --rail-w: 216px;
  --dir-a: var(--lake);
  --dir-b: var(--orange);
  --dir-c: var(--ice);
  background: var(--arena);
  color: var(--snow);
  overflow-x: clip;
}

/* 首屏 */
.page-contact .coop-hero {
  position: relative;
  overflow: hidden;
  padding-block: 18px 46px;
  background:
    radial-gradient(115% 82% at 88% -12%, rgba(27, 127, 184, 0.55), transparent 62%),
    linear-gradient(180deg, var(--deep-lake) 0%, var(--night) 100%);
  border-bottom: 1px solid rgba(79, 163, 209, 0.28);
}

.page-contact .coop-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(90deg, rgba(247, 250, 252, 0.06) 0 1px, transparent 1px 72px),
    repeating-linear-gradient(0deg, rgba(247, 250, 252, 0.06) 0 1px, transparent 1px 72px);
  opacity: 0.55;
  pointer-events: none;
}

.page-contact .coop-hero::after {
  content: "";
  position: absolute;
  left: -8%;
  right: -8%;
  top: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--orange) 28%, var(--amber) 68%, transparent);
  opacity: 0.85;
}

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

.page-contact .coop-hero .breadcrumb {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
}

.page-contact .coop-hero .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .coop-hero .breadcrumb li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-contact .coop-hero .breadcrumb li + li::before {
  content: "/";
  color: rgba(247, 250, 252, 0.34);
}

.page-contact .coop-hero .breadcrumb a {
  color: var(--ice);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.page-contact .coop-hero .breadcrumb a:hover {
  color: var(--orange);
}

.page-contact .coop-hero .breadcrumb span {
  color: var(--cold);
}

.page-contact .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--ice);
}

.page-contact .eyebrow .index-num {
  color: var(--orange);
  margin-right: 6px;
}

.page-contact .coop-hero__grid {
  display: grid;
  gap: 30px;
}

.page-contact .coop-hero h1 {
  margin: 12px 0 18px;
  font-size: clamp(32px, 7.2vw, 56px);
  line-height: 1.08;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--snow);
}

.page-contact .coop-hero__intro {
  margin: 0 0 16px;
  max-width: 52ch;
  font-size: 16px;
  line-height: 1.9;
  color: var(--mist);
}

.page-contact .coop-hero__note {
  margin: 0 0 24px;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--cold);
}

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

.page-contact .coop-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 30px;
  list-style: none;
  margin: 28px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid rgba(79, 163, 209, 0.3);
}

.page-contact .coop-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 13px;
  color: var(--cold);
}

.page-contact .coop-fact-num {
  font-family: var(--font-mono);
  font-size: 22px;
  letter-spacing: -0.01em;
  color: var(--orange);
}

/* 图片占位 */
.page-contact .coop-figure {
  margin: 0;
  display: grid;
  gap: 10px;
}

.page-contact .coop-figure img {
  display: block;
  width: 100%;
  aspect-ratio: 7 / 4;
  object-fit: cover;
  max-width: 100%;
  height: auto;
  background: var(--graphite);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

.page-contact .coop-flow__media img {
  aspect-ratio: 3 / 2;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 26px 100%, 0 calc(100% - 26px));
}

.page-contact .coop-figure .media-caption {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.04em;
  color: var(--cold);
}

/* 区块标题 */
.page-contact .coop-sec-head {
  max-width: 660px;
  margin-bottom: 28px;
}

.page-contact .coop-sec-head h2 {
  margin: 10px 0 12px;
  font-size: clamp(25px, 4.6vw, 38px);
  line-height: 1.14;
  font-weight: 900;
  letter-spacing: -0.018em;
  color: var(--snow);
}

.page-contact .coop-sec-head p {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--cold);
}

/* 合作方向 */
.page-contact .coop-directions {
  padding-block: 52px;
  background: var(--arena);
}

.page-contact .coop-rail__axis {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 2px 2px 8px;
}

.page-contact .coop-axis__link:nth-child(1) {
  --ax: var(--dir-a);
}

.page-contact .coop-axis__link:nth-child(2) {
  --ax: var(--dir-b);
}

.page-contact .coop-axis__link:nth-child(3) {
  --ax: var(--dir-c);
}

.page-contact .coop-axis__link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  font-size: 13px;
  white-space: nowrap;
  color: var(--mist);
  text-decoration: none;
  background: rgba(11, 74, 111, 0.42);
  box-shadow: inset 3px 0 0 var(--ax, var(--lake)), inset 0 0 0 1px rgba(79, 163, 209, 0.28);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%);
  transition: box-shadow var(--dur) var(--ease), color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .coop-axis__link:hover,
.page-contact .coop-axis__link:focus-visible {
  color: var(--snow);
  background: rgba(11, 74, 111, 0.68);
  box-shadow: inset 8px 0 0 var(--ax, var(--lake)), inset 0 0 0 1px var(--ice);
}

.page-contact .coop-axis__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--ax, var(--lake));
}

.page-contact .coop-rail__body {
  display: grid;
  gap: 18px;
  margin-top: 18px;
}

.page-contact .coop-dir {
  position: relative;
  padding: 22px 20px 22px 24px;
  background: linear-gradient(140deg, var(--graphite) 0%, rgba(7, 26, 38, 0.92) 100%);
  box-shadow: inset 0 0 0 1px rgba(79, 163, 209, 0.22);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
  scroll-margin-top: 96px;
  transition: box-shadow var(--dur) var(--ease);
}

.page-contact .coop-dir--a {
  --dirc: var(--dir-a);
}

.page-contact .coop-dir--b {
  --dirc: var(--dir-b);
}

.page-contact .coop-dir--c {
  --dirc: var(--dir-c);
}

.page-contact .coop-dir::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--dirc, var(--lake));
  transition: width var(--dur) var(--ease);
}

.page-contact .coop-dir:hover {
  box-shadow: inset 0 0 0 1px var(--ice);
}

.page-contact .coop-dir:hover::before {
  width: 8px;
}

.page-contact .coop-dir__tag {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  line-height: 1.7;
  color: var(--cold);
}

.page-contact .coop-dir__title {
  margin: 0 0 12px;
  font-size: 21px;
  line-height: 1.32;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--snow);
}

.page-contact .coop-dir__text {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .coop-dir__list {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .coop-dir__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .coop-dir__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 2px;
  background: var(--dirc, var(--lake));
}

.page-contact .coop-dir__meta {
  margin: 0;
  padding-top: 12px;
  border-top: 1px dashed rgba(79, 163, 209, 0.28);
  font-size: 13px;
  line-height: 1.75;
  color: var(--cold);
}

.page-contact .coop-dir__meta a {
  color: var(--ice);
  text-decoration: none;
  border-bottom: 1px solid rgba(79, 163, 209, 0.5);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .coop-dir__meta a:hover {
  color: var(--orange);
  border-color: var(--orange);
}

/* 看板流程 */
.page-contact .coop-flow {
  padding-block: 52px;
  background: var(--night);
  border-top: 1px solid rgba(79, 163, 209, 0.16);
  border-bottom: 1px solid rgba(79, 163, 209, 0.16);
}

.page-contact .coop-flow__grid {
  display: grid;
  gap: 30px;
}

.page-contact .coop-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 22px;
}

.page-contact .coop-step {
  position: relative;
  padding-left: 56px;
}

.page-contact .coop-step::before {
  content: "";
  position: absolute;
  left: 19px;
  top: 44px;
  bottom: -22px;
  width: 2px;
  background: linear-gradient(180deg, var(--lake), rgba(79, 163, 209, 0.1));
}

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

.page-contact .coop-step__node {
  position: absolute;
  left: 0;
  top: 0;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--night);
  background: var(--orange);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%);
}

.page-contact .coop-step__title {
  margin: 6px 0 8px;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--snow);
}

.page-contact .coop-step__text {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .coop-step__deliver {
  margin: 0;
  padding-left: 10px;
  border-left: 2px solid rgba(255, 176, 32, 0.6);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--amber);
}

/* 场馆共建（浅色分区） */
.page-contact .coop-venue {
  padding-block: 52px;
  background: var(--mist);
  color: var(--night);
}

.page-contact .coop-venue .eyebrow {
  color: var(--deep-lake);
}

.page-contact .coop-venue .eyebrow .index-num {
  color: var(--orange);
}

.page-contact .coop-venue .coop-sec-head h2 {
  color: var(--deep-lake);
}

.page-contact .coop-venue .coop-sec-head p {
  color: rgba(7, 26, 38, 0.72);
}

.page-contact .coop-venue__tablewrap {
  margin: 0 0 22px;
  overflow-x: auto;
  border: 1px solid rgba(11, 74, 111, 0.22);
  background: var(--snow);
}

.page-contact .coop-venue .data-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-contact .coop-venue .data-table th,
.page-contact .coop-venue .data-table td {
  padding: 13px 16px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid rgba(11, 74, 111, 0.14);
  line-height: 1.7;
}

.page-contact .coop-venue .data-table thead th {
  background: var(--deep-lake);
  color: var(--snow);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
}

.page-contact .coop-venue .data-table tbody th {
  color: var(--deep-lake);
  font-weight: 700;
  white-space: nowrap;
}

.page-contact .coop-venue .data-table tbody td {
  color: rgba(7, 26, 38, 0.82);
}

.page-contact .coop-venue .data-table tbody tr:nth-child(even) {
  background: rgba(216, 233, 242, 0.6);
}

.page-contact .coop-venue__stats {
  display: grid;
  gap: 12px;
}

.page-contact .coop-stat {
  padding: 16px 18px;
  background: var(--snow);
  border-left: 4px solid var(--lake);
}

.page-contact .coop-stat:nth-child(2) {
  border-left-color: var(--orange);
}

.page-contact .coop-stat:nth-child(3) {
  border-left-color: var(--amber);
}

.page-contact .coop-stat__num {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  color: var(--deep-lake);
}

.page-contact .coop-stat__label {
  display: block;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(7, 26, 38, 0.7);
}

/* 联系 */
.page-contact .coop-contact {
  padding-block: 52px;
  background: linear-gradient(180deg, var(--night) 0%, var(--arena) 100%);
}

.page-contact .coop-channel {
  display: grid;
  gap: 14px;
  margin-top: 4px;
}

.page-contact .coop-channel__item {
  padding: 18px 20px;
  background: rgba(11, 74, 111, 0.3);
  border: 1px solid rgba(79, 163, 209, 0.36);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .coop-channel__item:hover {
  border-color: var(--ice);
  background: rgba(11, 74, 111, 0.52);
}

.page-contact .coop-channel__label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--amber);
}

.page-contact .coop-channel__value {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: clamp(15px, 4vw, 20px);
  line-height: 1.45;
  color: var(--snow);
  word-break: break-word;
}

.page-contact .coop-channel__hint {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--cold);
}

.page-contact .coop-channel__note {
  margin: 18px 0 0;
  padding: 14px 16px;
  border-left: 3px solid var(--ice);
  background: rgba(27, 127, 184, 0.12);
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
}

/* 常见问题 */
.page-contact .coop-faq-sec {
  padding-block: 52px;
  background: var(--arena);
}

.page-contact .coop-faq {
  display: grid;
  gap: 10px;
}

.page-contact .coop-faq details {
  background: var(--graphite);
  border: 1px solid rgba(79, 163, 209, 0.2);
  transition: border-color var(--dur) var(--ease);
}

.page-contact .coop-faq details[open] {
  border-color: rgba(79, 163, 209, 0.5);
}

.page-contact .coop-faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--snow);
  transition: color var(--dur) var(--ease);
}

.page-contact .coop-faq summary::-webkit-details-marker {
  display: none;
}

.page-contact .coop-faq summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--orange);
}

.page-contact .coop-faq details[open] summary::after {
  content: "–";
}

.page-contact .coop-faq summary:hover {
  color: var(--ice);
}

.page-contact .coop-faq summary:focus-visible {
  outline: 2px solid var(--ice);
  outline-offset: -2px;
}

.page-contact .coop-faq__a {
  padding: 0 18px 16px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .coop-faq__a p {
  margin: 0;
}

.page-contact .coop-faq__a a {
  color: var(--ice);
  text-decoration: none;
  border-bottom: 1px solid rgba(79, 163, 209, 0.5);
}

.page-contact .coop-faq__a a:hover {
  color: var(--orange);
  border-color: var(--orange);
}

/* 底部行动条 */
.page-contact .coop-cta-bar {
  padding-block: 34px;
  color: var(--night);
  background:
    repeating-linear-gradient(115deg, rgba(7, 26, 38, 0.07) 0 16px, transparent 16px 34px),
    linear-gradient(100deg, var(--orange) 0%, var(--amber) 100%);
}

.page-contact .coop-cta-bar__inner {
  display: grid;
  gap: 18px;
}

.page-contact .coop-cta-bar__kicker {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: rgba(7, 26, 38, 0.72);
}

.page-contact .coop-cta-bar__text {
  margin: 0;
  max-width: 58ch;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.7;
  color: var(--night);
}

.page-contact .coop-cta-bar__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-contact .coop-cta-bar .btn-primary {
  background: var(--night);
  border-color: var(--night);
  color: var(--snow);
}

.page-contact .coop-cta-bar .btn-primary:hover {
  background: var(--deep-lake);
  border-color: var(--deep-lake);
}

.page-contact .coop-cta-bar .btn-ghost {
  background: transparent;
  border-color: rgba(7, 26, 38, 0.5);
  color: var(--night);
}

.page-contact .coop-cta-bar .btn-ghost:hover {
  background: rgba(7, 26, 38, 0.1);
  border-color: var(--night);
}

/* 响应式 */
@media (min-width: 640px) {
  .page-contact .coop-venue__stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-contact .coop-channel {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .coop-channel__item--wide {
    grid-column: 1 / -1;
  }
}

@media (min-width: 820px) {
  .page-contact .coop-cta-bar__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 28px;
  }
}

@media (min-width: 900px) {
  .page-contact .coop-hero {
    padding-block: 24px 60px;
  }

  .page-contact .coop-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.85fr);
    align-items: center;
    gap: 40px;
  }

  .page-contact .coop-directions,
  .page-contact .coop-flow,
  .page-contact .coop-venue,
  .page-contact .coop-contact,
  .page-contact .coop-faq-sec {
    padding-block: 68px;
  }

  .page-contact .coop-flow__grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.85fr);
    align-items: start;
    gap: 40px;
  }

  .page-contact .coop-dir {
    padding: 26px 26px 26px 28px;
  }

  .page-contact .coop-dir__title {
    font-size: 23px;
  }
}

@media (min-width: 1024px) {
  .page-contact .coop-rail {
    display: grid;
    grid-template-columns: var(--rail-w) minmax(0, 1fr);
    gap: 34px;
    align-items: start;
  }

  .page-contact .coop-rail__axis {
    position: sticky;
    top: 96px;
    flex-direction: column;
    overflow: visible;
    padding: 0;
  }

  .page-contact .coop-axis__link {
    width: 100%;
    justify-content: flex-start;
  }

  .page-contact .coop-rail__body {
    margin-top: 0;
    gap: 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .coop-axis__link,
  .page-contact .coop-dir,
  .page-contact .coop-dir::before,
  .page-contact .coop-channel__item,
  .page-contact .coop-faq details,
  .page-contact .coop-faq summary {
    transition: none;
  }
}
<<<END>>>