.page-contact {
  --coop-gap: 24px;
  --coop-radius: 6px;
  --coop-soft: 0 26px 60px -44px rgba(0, 0, 0, 0.95);
  --coop-ink-soft: #3C362B;
  --coop-gold-deep: #7A5E10;
  background: var(--ink);
  color: var(--text);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-contact .coop-hero {
  position: relative;
  padding: 26px 0 68px;
}

.page-contact .coop-hero__inner {
  display: grid;
  gap: 34px;
  align-items: start;
}

.page-contact .coop-hero__text {
  display: grid;
  gap: 16px;
}

.page-contact .breadcrumb__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 .breadcrumb__link:hover,
.page-contact .breadcrumb__link:focus-visible {
  color: var(--gold-soft);
  border-bottom-color: var(--gold-soft);
}

.page-contact .coop-hero h1 {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(2rem, 5.4vw, 3.2rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--heading);
  max-width: 20ch;
}

.page-contact .coop-hero__lead {
  margin: 0;
  max-width: 36rem;
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--text);
}

.page-contact .coop-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 4px;
}

.page-contact .coop-hero__facts {
  list-style: none;
  margin: 10px 0 0;
  padding: 22px 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 18px;
}

.page-contact .coop-fact__num {
  display: block;
  font-family: var(--font-num);
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--gold);
}

.page-contact .coop-fact__label {
  display: block;
  margin-top: 4px;
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--mist);
}

.page-contact .coop-hero__figure {
  position: relative;
  margin: 0;
  border-radius: var(--coop-radius);
  box-shadow: var(--coop-soft);
}

.page-contact .coop-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--coop-radius);
}

.page-contact .coop-hero__figure::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 84px;
  height: 84px;
  background: linear-gradient(135deg, transparent 50%, rgba(232, 184, 75, 0.42) 50%);
  border-radius: 0 0 var(--coop-radius) 0;
  pointer-events: none;
}

/* ---------- 章节骨架 ---------- */
.page-contact .coop-section {
  position: relative;
  padding: 62px 0;
}

.page-contact .section-head__lead {
  margin: 0;
  max-width: 46rem;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .coop-section--paper {
  background: var(--paper);
  color: var(--black);
}

.page-contact .coop-section--paper .section-head__lead {
  color: #4C4638;
}

/* ---------- 01 方向切换 ---------- */
.page-contact .coop-switch {
  position: relative;
  display: grid;
  gap: 22px;
  margin-top: 8px;
}

.page-contact .dir-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-contact .coop-switch__rail {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-contact .dir-card {
  display: block;
  position: relative;
  padding: 18px 20px 18px 22px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--line);
  border-radius: var(--coop-radius);
  cursor: pointer;
  transition: transform var(--dur) var(--ease),
              border-color var(--dur) var(--ease),
              background-color var(--dur) var(--ease);
}

.page-contact .dir-card:hover {
  transform: translateY(-2px);
  border-color: var(--gold-soft);
}

.page-contact .dir-card__num {
  display: block;
  font-family: var(--font-num);
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-contact .dir-card__title {
  display: block;
  margin-top: 6px;
  font-family: var(--font-head);
  font-size: 1.0625rem;
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--heading);
}

.page-contact .dir-card__hint {
  display: block;
  margin-top: 6px;
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--mist);
}

.page-contact #dir-publish:checked ~ .coop-switch__rail .dir-card[for="dir-publish"],
.page-contact #dir-gift:checked ~ .coop-switch__rail .dir-card[for="dir-gift"],
.page-contact #dir-build:checked ~ .coop-switch__rail .dir-card[for="dir-build"] {
  background: #1C2A58;
  border-color: var(--gold);
  border-left-color: var(--gold);
}

.page-contact .coop-switch__panels {
  display: grid;
}

.page-contact .dir-panel {
  display: none;
  padding: 26px 22px;
  background: var(--paper);
  color: var(--black);
  border: 1px solid var(--paper-deep);
  border-radius: var(--coop-radius);
  box-shadow: var(--coop-soft);
}

.page-contact #dir-publish:checked ~ .coop-switch__panels .dir-panel--publish,
.page-contact #dir-gift:checked ~ .coop-switch__panels .dir-panel--gift,
.page-contact #dir-build:checked ~ .coop-switch__panels .dir-panel--build {
  display: block;
  animation: coopPanelIn 180ms var(--ease) both;
}

@keyframes coopPanelIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-contact .dir-panel__title {
  margin: 0 0 18px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--gold);
  font-family: var(--font-head);
  font-size: 1.375rem;
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--black);
}

.page-contact .dir-panel__list {
  margin: 0;
  display: grid;
  gap: 16px;
}

.page-contact .dir-panel__item {
  display: grid;
  gap: 5px;
}

.page-contact .dir-panel__item dt {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--coop-gold-deep);
}

.page-contact .dir-panel__item dd {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--coop-ink-soft);
}

/* ---------- 02 流程 ---------- */
.page-contact .coop-figure {
  margin: 0 0 26px;
  border-radius: var(--coop-radius);
  overflow: hidden;
  border: 1px solid #E2DACB;
}

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

.page-contact .coop-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-contact .coop-step {
  position: relative;
  padding: 22px 20px;
  background: #FFFFFF;
  border: 1px solid #E2DACB;
  border-radius: var(--coop-radius);
  transition: transform var(--dur) var(--ease),
              border-color var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease);
}

.page-contact .coop-step:hover {
  transform: translateY(-3px);
  border-color: var(--gold);
  box-shadow: 0 20px 40px -32px rgba(20, 17, 12, 0.75);
}

.page-contact .coop-step__num {
  display: block;
  font-family: var(--font-num);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gold);
}

.page-contact .coop-step__title {
  margin: 8px 0 0;
  font-family: var(--font-head);
  font-size: 1.0625rem;
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--black);
}

.page-contact .coop-step__time {
  display: inline-block;
  margin: 10px 0 0;
  padding: 2px 10px;
  background: #FDF7E6;
  border: 1px solid #D9C98F;
  border-radius: 999px;
  font-family: var(--font-num);
  font-size: 0.75rem;
  color: var(--coop-gold-deep);
}

.page-contact .coop-step__desc {
  margin: 12px 0 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--coop-ink-soft);
}

/* ---------- 03 材料清单 ---------- */
.page-contact .coop-notes {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: grid;
  gap: 20px;
}

.page-contact .coop-note {
  position: relative;
  padding: 24px 20px 22px;
  background: var(--paper);
  color: var(--black);
  border-radius: 2px;
  box-shadow: 0 20px 44px -36px rgba(0, 0, 0, 0.95);
  transition: transform var(--dur) var(--ease);
}

.page-contact .coop-note:nth-child(odd) {
  transform: rotate(-0.7deg);
}

.page-contact .coop-note:nth-child(even) {
  transform: rotate(0.6deg);
}

.page-contact .coop-note:hover {
  transform: rotate(0deg) translateY(-3px);
}

.page-contact .coop-note::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 26px;
  height: 26px;
  background: linear-gradient(225deg, var(--ink) 0 50%, #D8CFBB 50% 100%);
}

.page-contact .coop-note__tag {
  display: block;
  font-family: var(--font-num);
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  color: var(--coop-gold-deep);
}

.page-contact .coop-note h3 {
  margin: 8px 0 10px;
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--black);
}

.page-contact .coop-note p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--coop-ink-soft);
}

/* ---------- 04 合作后支持 ---------- */
.page-contact .coop-supports {
  display: grid;
  gap: 18px;
}

.page-contact .coop-support {
  padding: 22px 20px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-top: 2px solid var(--violet);
  border-radius: var(--coop-radius);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .coop-support:nth-child(2) {
  border-top-color: var(--jade);
}

.page-contact .coop-support:nth-child(3) {
  border-top-color: var(--gold);
}

.page-contact .coop-support:nth-child(4) {
  border-top-color: var(--gold-soft);
}

.page-contact .coop-support:hover {
  transform: translateY(-3px);
  border-color: var(--gold-soft);
}

.page-contact .coop-support h3 {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--heading);
}

.page-contact .coop-support p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 05 联系横幅 ---------- */
.page-contact .coop-banner {
  position: relative;
  overflow: hidden;
  padding: 32px 22px 34px;
  background: linear-gradient(135deg, #101C44 0%, #16224A 55%, #1E2C5E 100%);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--coop-soft);
}

.page-contact .coop-banner::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gold) 0%, var(--violet) 55%, var(--jade) 100%);
}

.page-contact .coop-channels {
  display: grid;
  gap: 24px;
  margin-top: 26px;
}

.page-contact .coop-channel {
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.page-contact .coop-channel__label {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  color: var(--mist);
}

.page-contact .coop-channel__value {
  display: block;
  margin-top: 10px;
  font-family: var(--font-num);
  font-size: clamp(1rem, 2.2vw, 1.25rem);
  font-weight: 700;
  line-height: 1.5;
  color: var(--gold-soft);
  word-break: break-word;
}

.page-contact .coop-channel__note {
  margin: 12px 0 0;
  font-size: 0.8125rem;
  line-height: 1.65;
  color: var(--mist);
}

/* ---------- 06 问答 ---------- */
.page-contact .coop-faqs {
  display: grid;
  gap: 12px;
  margin-top: 8px;
}

.page-contact .coop-faqs .fold__label {
  font-weight: 700;
}

.page-contact .coop-faqs .fold__panel p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--text);
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-contact .coop-hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .coop-hero__facts .coop-fact + .coop-fact {
    padding-left: 18px;
    border-left: 1px solid var(--line);
  }

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

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

@media (min-width: 860px) {
  .page-contact .coop-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
  }

  .page-contact .coop-step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 34px;
    right: -18px;
    width: 18px;
    height: 1px;
    background: var(--gold);
    opacity: 0.65;
  }

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

@media (min-width: 960px) {
  .page-contact .coop-hero {
    padding: 34px 0 96px;
  }

  .page-contact .coop-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 52px;
  }

  .page-contact .coop-section {
    padding: 96px 0;
  }

  .page-contact .coop-switch {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 24px;
    align-items: start;
  }

  .page-contact .coop-switch__rail {
    gap: 16px;
  }

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

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

  .page-contact .coop-banner {
    padding: 42px 40px 46px;
  }
}

@media (min-width: 1180px) {
  .page-contact .coop-hero h1 {
    font-size: clamp(2.4rem, 3.6vw, 3.4rem);
  }

  .page-contact .coop-note {
    padding: 26px 22px 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .dir-card,
  .page-contact .coop-step,
  .page-contact .coop-note,
  .page-contact .coop-support,
  .page-contact .breadcrumb__link {
    transition: none;
  }

  .page-contact .coop-note,
  .page-contact .coop-note:nth-child(odd),
  .page-contact .coop-note:nth-child(even) {
    transform: none;
  }

  .page-contact #dir-publish:checked ~ .coop-switch__panels .dir-panel--publish,
  .page-contact #dir-gift:checked ~ .coop-switch__panels .dir-panel--gift,
  .page-contact #dir-build:checked ~ .coop-switch__panels .dir-panel--build {
    animation: none;
  }
}