.page-contact {
  --coop-gap: clamp(20px, 3vw, 40px);
  --coop-rhythm: clamp(48px, 7vw, 92px);
  color: var(--ink);
}

/* ---------- 首屏 ---------- */
.page-contact .coop-hero {
  position: relative;
  padding: clamp(26px, 4.5vw, 52px) 0 clamp(24px, 3.5vw, 40px);
  border-bottom: 2px solid var(--line-soft);
  overflow: hidden;
}

.page-contact .coop-hero::after {
  content: "";
  position: absolute;
  top: -34%;
  right: -16%;
  width: min(560px, 72vw);
  aspect-ratio: 1;
  background:
    radial-gradient(circle at 40% 42%, rgba(139, 92, 246, 0.40), transparent 62%),
    radial-gradient(circle at 68% 66%, rgba(34, 211, 238, 0.26), transparent 58%);
  pointer-events: none;
  z-index: 0;
}

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

.page-contact .coop-hero__kicker {
  position: relative;
  z-index: 1;
  margin: 20px 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .coop-hero__title {
  position: relative;
  z-index: 1;
  margin: 0 0 18px;
  max-width: 17ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 5.4vw, 60px);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.page-contact .coop-hero__lead {
  position: relative;
  z-index: 1;
  margin: 0;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .coop-stats {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 14px;
  margin-top: 30px;
}

.page-contact .coop-stats .kpi {
  border: 2px solid var(--line);
  border-left: 6px solid var(--amber);
  background: var(--panel);
  box-shadow: var(--shadow-soft);
  padding: 16px 18px;
}

/* ---------- 主栏 + 粘性侧栏 ---------- */
.page-contact .coop-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--coop-gap);
  align-items: start;
  margin-top: var(--coop-rhythm);
}

.page-contact .coop-main {
  min-width: 0;
}

.page-contact .coop-block + .coop-block {
  margin-top: var(--coop-rhythm);
}

.page-contact .coop-block__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px 16px;
  padding-bottom: 14px;
  margin-bottom: 26px;
  border-bottom: 2px solid var(--line-soft);
}

.page-contact .coop-block__idx {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-contact .coop-block__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px, 2.9vw, 33px);
  line-height: 1.28;
}

/* ---------- 合作类型 ---------- */
.page-contact .filter-bar {
  margin-bottom: 22px;
}

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

.page-contact .coop-type {
  position: relative;
  padding: 22px 22px 20px;
  background: var(--panel);
  border: 2px solid var(--line);
  border-left: 6px solid var(--cyan);
  box-shadow: var(--shadow-soft);
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.page-contact .coop-type:hover,
.page-contact .coop-type:focus-within {
  transform: translateY(-2px);
  box-shadow: 10px 10px 0 rgba(5, 10, 30, 0.9);
}

.page-contact .coop-type--neon { border-left-color: var(--neon); }
.page-contact .coop-type--cyan { border-left-color: var(--cyan); }
.page-contact .coop-type--amber { border-left-color: var(--amber); }
.page-contact .coop-type--ok { border-left-color: var(--ok); }

.page-contact .coop-type--neon:hover { border-color: var(--neon); }
.page-contact .coop-type--cyan:hover { border-color: var(--cyan); }
.page-contact .coop-type--amber:hover { border-color: var(--amber); }
.page-contact .coop-type--ok:hover { border-color: var(--ok); }

.page-contact .coop-type__title {
  margin: 12px 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 20px;
  line-height: 1.35;
}

.page-contact .coop-type__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .coop-type__need {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line-soft);
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .coop-type__need span {
  display: inline-block;
  margin-right: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--amber);
}

/* ---------- 图片 ---------- */
.page-contact .coop-figure {
  margin: 26px 0 0;
}

.page-contact .coop-shot {
  position: relative;
  overflow: hidden;
  border: 2px solid var(--line);
  box-shadow: var(--shadow-soft);
  background: linear-gradient(140deg, rgba(139, 92, 246, 0.20), rgba(34, 211, 238, 0.12));
}

.page-contact .coop-shot--2-1 {
  aspect-ratio: 2 / 1;
}

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

.page-contact .coop-figure__cap {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 流程台阶 ---------- */
.page-contact .coop-steps {
  display: grid;
  gap: 16px;
}

.page-contact .coop-step {
  padding: 22px 22px 22px 24px;
  background: var(--panel);
  border: 2px solid var(--line);
  border-left: 6px solid var(--neon);
  box-shadow: var(--shadow-soft);
}

.page-contact .coop-step__idx {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--neon);
}

.page-contact .coop-step__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  line-height: 1.4;
}

.page-contact .coop-step__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 节奏三块 ---------- */
.page-contact .coop-cadence {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-contact .coop-cadence__item {
  padding: 22px 20px;
  background:
    linear-gradient(180deg, rgba(139, 92, 246, 0.14), transparent 72%),
    var(--panel);
  border: 2px solid var(--line);
  box-shadow: var(--shadow-soft);
}

.page-contact .coop-cadence__num {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--amber);
}

.page-contact .coop-cadence__unit {
  margin: 10px 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-contact .coop-cadence__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  line-height: 1.4;
}

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

.page-contact .coop-note {
  margin-top: 22px;
  padding: 22px 22px 20px;
  background: rgba(34, 211, 238, 0.07);
  border: 2px solid var(--line);
  border-left: 6px solid var(--cyan);
  box-shadow: var(--shadow-soft);
}

.page-contact .coop-note__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
}

.page-contact .coop-note__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-contact .coop-note__list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .coop-note__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 10px;
  height: 2px;
  background: var(--cyan);
}

/* ---------- 资料清单 ---------- */
.page-contact .coop-checkgroup {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-contact .coop-checkcard {
  padding: 22px 22px 16px;
  background: var(--panel);
  border: 2px solid var(--line);
  border-top: 6px solid var(--cyan);
  box-shadow: var(--shadow-soft);
}

.page-contact .coop-checkcard__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
}

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

.page-contact .coop-check {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--line-soft);
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .coop-check:last-child {
  border-bottom: 0;
}

.page-contact .coop-check__mark {
  position: relative;
  flex: none;
  width: 20px;
  height: 20px;
  margin-top: 4px;
  border: 2px solid var(--cyan);
  border-radius: 3px;
  background: rgba(34, 211, 238, 0.12);
}

.page-contact .coop-check__mark::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 6px;
  height: 11px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(42deg);
}

.page-contact .coop-checkgroup__foot {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
  border-left: 6px solid var(--amber);
  padding-left: 16px;
}

/* ---------- 客服事务 ---------- */
.page-contact .coop-service {
  gap: 18px;
}

.page-contact .coop-service__card {
  padding: 22px 22px 18px;
  background: var(--panel);
  border: 2px solid var(--line);
  border-left: 6px solid var(--neon);
  box-shadow: var(--shadow-soft);
}

.page-contact .coop-service .panel--amber {
  border-left-color: var(--amber);
}

.page-contact .coop-service__title {
  margin: 14px 0 14px;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.6;
  letter-spacing: 0.02em;
  color: var(--ink);
  word-break: break-word;
}

.page-contact .coop-service__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-contact .coop-service__list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .coop-service__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.8em;
  width: 8px;
  height: 8px;
  border: 2px solid currentColor;
  border-radius: 50%;
  color: var(--neon);
}

.page-contact .coop-service .panel--amber .coop-service__list li::before {
  color: var(--amber);
}

.page-contact .coop-service__foot {
  margin: 20px 0 0;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 常见问题 ---------- */
.page-contact .coop-faq {
  display: grid;
  gap: 12px;
}

.page-contact .coop-faq details {
  padding: 0 20px;
  background: var(--panel);
  border: 2px solid var(--line);
  box-shadow: var(--shadow-soft);
  transition: border-color 160ms ease;
}

.page-contact .coop-faq details[open],
.page-contact .coop-faq details:hover {
  border-color: var(--cyan);
}

.page-contact .coop-faq summary {
  position: relative;
  padding: 18px 34px 18px 0;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
}

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

.page-contact .coop-faq summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--cyan);
}

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

.page-contact .coop-faq__body {
  margin: 0;
  padding: 0 0 20px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 粘性侧栏 ---------- */
.page-contact .coop-side__card {
  padding: 26px 22px 24px;
  background:
    linear-gradient(165deg, rgba(34, 211, 238, 0.16), rgba(18, 28, 70, 0.96) 58%);
  border: 2px solid var(--cyan);
  box-shadow: var(--shadow-hard);
}

.page-contact .coop-side__kicker {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .coop-side__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 2.6vw, 28px);
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.page-contact .coop-side__intro {
  margin: 0 0 20px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .coop-side__list {
  display: grid;
  gap: 16px;
  margin: 0 0 24px;
  padding: 0 0 22px;
  border-bottom: 1px dashed var(--line-soft);
}

.page-contact .coop-side__row {
  margin: 0;
}

.page-contact .coop-side__k {
  margin: 0 0 5px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .coop-side__v {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink);
  word-break: break-word;
}

.page-contact .coop-side__v--mail {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--cyan);
}

.page-contact .coop-side__v--mono {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--amber);
}

.page-contact .coop-side__links {
  display: grid;
  gap: 8px;
  margin-top: 22px;
  padding-top: 18px;
  border-top: 2px solid var(--line-soft);
}

.page-contact .coop-side__links a {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  padding-bottom: 2px;
  transition: color 160ms ease, border-color 160ms ease;
}

.page-contact .coop-side__links a:hover,
.page-contact .coop-side__links a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 页尾反色横幅 ---------- */
.page-contact .coop-banner {
  position: relative;
  display: grid;
  gap: 22px;
  margin-top: var(--coop-rhythm);
  padding: clamp(28px, 4.5vw, 48px) clamp(22px, 4vw, 44px);
  background: linear-gradient(115deg, var(--neon), var(--cyan) 82%);
  border: 2px solid rgba(255, 255, 255, 0.30);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}

.page-contact .coop-banner::after {
  content: "";
  position: absolute;
  right: -8%;
  bottom: -60%;
  width: min(420px, 60vw);
  aspect-ratio: 1;
  background: radial-gradient(circle, rgba(5, 10, 30, 0.22), transparent 62%);
  pointer-events: none;
}

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

.page-contact .coop-banner__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 3.2vw, 36px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--void);
}

.page-contact .coop-banner__text {
  margin: 0;
  max-width: 54ch;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(5, 10, 30, 0.84);
}

.page-contact .coop-banner .btn {
  position: relative;
  z-index: 1;
  justify-self: start;
  border: 2px solid var(--void);
  box-shadow: 6px 6px 0 rgba(5, 10, 30, 0.30);
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-contact .coop-types,
  .page-contact .coop-checkgroup {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .coop-cadence {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .coop-step:nth-child(2) { margin-left: 26px; }
  .page-contact .coop-step:nth-child(3) { margin-left: 52px; }
  .page-contact .coop-step:nth-child(4) { margin-left: 78px; }
}

@media (min-width: 1000px) {
  .page-contact .coop-layout {
    grid-template-columns: minmax(0, 1.62fr) minmax(280px, 0.92fr);
    gap: clamp(30px, 4vw, 58px);
  }

  .page-contact .coop-side {
    position: sticky;
    top: 92px;
  }

  .page-contact .coop-banner {
    grid-template-columns: minmax(0, 1.5fr) auto;
    align-items: center;
  }

  .page-contact .coop-banner .btn {
    justify-self: end;
  }
}

@media (min-width: 1180px) {
  .page-contact .coop-types {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 480px) {
  .page-contact .coop-hero__title {
    max-width: none;
  }

  .page-contact .coop-side__card {
    padding: 22px 18px 20px;
  }

  .page-contact .coop-type,
  .page-contact .coop-step,
  .page-contact .coop-checkcard {
    padding-left: 18px;
    padding-right: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .coop-type,
  .page-contact .coop-faq details,
  .page-contact .coop-side__links a {
    transition: none;
  }

  .page-contact .coop-type:hover,
  .page-contact .coop-type:focus-within {
    transform: none;
  }
}