/* ===== 合作与支持 页面专属样式 ===== */
.page-contact {
  --pc-gap: 22px;
  --pc-block-y: 56px;
  display: block;
}

.page-contact .pc-block {
  padding-top: var(--pc-block-y);
}

.page-contact .pc-hero {
  padding-top: 28px;
}

.page-contact .pc-block:last-of-type {
  padding-bottom: 24px;
}

/* ---------- 首屏 ---------- */
.page-contact .hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pc-gap);
  grid-template-areas:
    "card"
    "copy";
}

.page-contact .hero-copy {
  grid-area: copy;
  max-width: 640px;
}

.page-contact .contact-card {
  grid-area: card;
  position: relative;
  padding: 24px 20px 20px;
  background:
    radial-gradient(130% 95% at 100% 0%, rgba(217, 164, 65, 0.18), rgba(217, 164, 65, 0) 62%),
    var(--midnight);
  clip-path: var(--notch);
  box-shadow: var(--shadow-panel);
}

.page-contact .contact-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 22px;
  width: 92px;
  height: 3px;
  background: linear-gradient(90deg, var(--amber), rgba(217, 164, 65, 0));
}

.page-contact .card-title {
  margin: 6px 0 14px;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--body);
}

.page-contact .field {
  display: grid;
  gap: 5px;
  padding: 14px 0;
  border-bottom: 1px dashed var(--line);
}

.page-contact .field:last-of-type {
  border-bottom: 0;
}

.page-contact .field-label {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-contact .field-value {
  font-family: var(--font-mono);
  font-size: 15.5px;
  line-height: 1.5;
  color: var(--body);
  word-break: break-word;
}

.page-contact .field-value--text {
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.7;
}

.page-contact .resp-badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 16px 0 0;
  padding: 8px 14px;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--celadon-soft);
  background: rgba(95, 169, 138, 0.14);
  border: 1px solid rgba(95, 169, 138, 0.36);
  clip-path: polygon(0 0, calc(100% - 9px) 0, 100% 9px, 100% 100%, 9px 100%, 0 calc(100% - 9px));
}

.page-contact .resp-badge::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--celadon);
}

.page-contact h1 {
  margin: 8px 0 14px;
  font-family: var(--font-sans);
  font-size: clamp(30px, 6.4vw, 50px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.022em;
  color: var(--body);
}

.page-contact .hero-note {
  margin-top: 14px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .hero-note a {
  color: var(--amber-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(240, 201, 120, 0.4);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .hero-note a:hover,
.page-contact .hero-note a:focus-visible {
  color: var(--amber);
  border-color: var(--amber);
}

/* ---------- 通用小标题组 ---------- */
.page-contact .pc-head {
  max-width: 720px;
  margin-bottom: 26px;
}

.page-contact .pc-head h2 {
  margin: 8px 0 10px;
  font-size: clamp(23px, 3.6vw, 32px);
  font-weight: 800;
  line-height: 1.26;
  letter-spacing: -0.015em;
  color: var(--body);
}

.page-contact .pc-head p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 四类事项 ---------- */
.page-contact .reason-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  clip-path: var(--notch);
}

.page-contact .reason-card {
  position: relative;
  padding: 22px 20px 24px;
  background: var(--ink);
  transition: background 0.3s var(--ease);
}

.page-contact .reason-card:hover {
  background: var(--midnight);
}

.page-contact .reason-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--amber);
  transition: width 0.4s var(--ease);
}

.page-contact .reason-card:hover::after {
  width: 68px;
}

.page-contact .reason-idx {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--amber);
}

.page-contact .reason-card h3 {
  margin: 10px 0 8px;
  font-size: 18px;
  font-weight: 700;
  color: var(--body);
}

.page-contact .reason-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 合作流程 ---------- */
.page-contact .flow-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

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

.page-contact .flow-step {
  position: relative;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 16px;
  padding-bottom: 24px;
}

.page-contact .flow-step:last-child {
  padding-bottom: 0;
}

.page-contact .flow-step::before {
  content: "";
  position: absolute;
  left: 21px;
  top: 50px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, var(--line-strong), rgba(31, 58, 82, 0));
}

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

.page-contact .flow-num {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--midnight);
  border: 1px solid var(--line-strong);
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--amber);
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}

.page-contact .flow-step:hover .flow-num,
.page-contact .flow-step:focus-within .flow-num {
  border-color: var(--amber);
  background: rgba(217, 164, 65, 0.14);
}

.page-contact .flow-body h3 {
  margin: 11px 0 6px;
  font-size: 17px;
  font-weight: 700;
  color: var(--body);
}

.page-contact .flow-body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .flow-extra {
  margin-top: 8px !important;
  padding-left: 12px;
  border-left: 2px solid var(--slate);
  color: rgba(143, 163, 184, 0.9) !important;
}

.page-contact .flow-figure {
  clip-path: var(--notch);
  background: var(--midnight);
  margin: 0;
}

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

/* ---------- 来访前准备 ---------- */
.page-contact .prep-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-contact .prep-item {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 16px 18px;
  background: var(--midnight);
  border-left: 2px solid var(--slate);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}

.page-contact .prep-item:hover {
  border-left-color: var(--celadon);
  background: var(--slate);
}

.page-contact .prep-idx {
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  color: var(--celadon);
}

.page-contact .prep-item strong {
  display: block;
  margin-bottom: 4px;
  font-size: 15px;
  font-weight: 700;
  color: var(--body);
}

.page-contact .prep-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 常见合作方向 ---------- */
.page-contact .coop-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-contact .coop-card {
  position: relative;
  padding: 22px 20px 24px;
  background:
    linear-gradient(160deg, rgba(95, 169, 138, 0.09), rgba(95, 169, 138, 0) 58%),
    var(--midnight);
  border: 1px solid var(--line);
  clip-path: var(--notch);
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease);
}

.page-contact .coop-card:hover {
  transform: translateY(-3px);
  border-color: var(--line-strong);
}

.page-contact .coop-card h3 {
  margin: 14px 0 8px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--body);
}

.page-contact .coop-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .coop-tail {
  margin: 26px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .coop-tail a {
  color: var(--amber-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(240, 201, 120, 0.4);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .coop-tail a:hover,
.page-contact .coop-tail a:focus-visible {
  color: var(--amber);
  border-color: var(--amber);
}

/* ---------- 底部地域纹理 ---------- */
.page-contact .pc-landscape {
  position: relative;
  margin-top: 56px;
  overflow: hidden;
  clip-path: var(--notch);
  background: var(--ink);
}

.page-contact .pc-landscape img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  opacity: 0.65;
}

.page-contact .pc-landscape::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(11, 28, 44, 0.92), rgba(11, 28, 44, 0.18) 46%, rgba(11, 28, 44, 0.88));
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-contact .reason-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 760px) {
  .page-contact {
    --pc-block-y: 72px;
  }

  .page-contact .contact-card {
    padding: 30px 28px 26px;
  }

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

  .page-contact .flow-step {
    grid-template-columns: 52px minmax(0, 1fr);
  }

  .page-contact .flow-num {
    width: 50px;
    height: 50px;
  }

  .page-contact .flow-step::before {
    left: 24px;
    top: 56px;
  }
}

@media (min-width: 1000px) {
  .page-contact .hero-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.82fr);
    grid-template-areas: "copy card";
    gap: 40px;
    align-items: start;
  }

  .page-contact .flow-layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.86fr);
    gap: 44px;
  }

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

  .page-contact .coop-card:first-child {
    grid-column: span 2;
  }
}

@media (hover: hover) and (min-width: 900px) {
  .page-contact .flow-extra {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.38s var(--ease), opacity 0.3s var(--ease), margin-top 0.38s var(--ease);
    margin-top: 0 !important;
  }

  .page-contact .flow-step:hover .flow-extra,
  .page-contact .flow-step:focus-within .flow-extra {
    max-height: 140px;
    opacity: 1;
    margin-top: 8px !important;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .reason-card,
  .page-contact .reason-card::after,
  .page-contact .flow-num,
  .page-contact .prep-item,
  .page-contact .coop-card,
  .page-contact .flow-extra {
    transition: none !important;
  }

  .page-contact .coop-card:hover {
    transform: none;
  }
}