.page-contact {
  --coop-line-w: 1px;
  --coop-ease: cubic-bezier(0.2, 0.7, 0.3, 1);
  background: var(--ink);
  color: var(--text);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: 40px 0 52px;
  background:
    radial-gradient(90% 120% at 12% 0%, rgba(47, 224, 232, 0.10), transparent 60%),
    linear-gradient(165deg, #0B2136 0%, #061523 58%, #050F1B 100%);
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -12%;
  width: min(62vw, 680px);
  height: 170%;
  background: linear-gradient(135deg, rgba(47, 224, 232, 0.24) 0%, rgba(18, 60, 99, 0.45) 52%, transparent 100%);
  clip-path: polygon(34% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(27, 58, 82, 0.55) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(27, 58, 82, 0.55) 1px, transparent 1px);
  background-size: 62px 62px;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, transparent 86%);
  mask-image: linear-gradient(to bottom, #000 0%, transparent 86%);
  opacity: 0.6;
  pointer-events: none;
}

.page-contact .contact-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 32px;
}

.page-contact .contact-hero h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(30px, 6vw, 54px);
  line-height: 1.06;
  letter-spacing: -0.015em;
  color: var(--text);
  max-width: 15em;
}

.page-contact .contact-hero__lead {
  margin: 16px 0 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-contact .contact-hero__stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 20px;
}

.page-contact .contact-hero__stats li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-left: 13px;
  border-left: 2px solid var(--line);
}

.page-contact .contact-hero__stats li:nth-child(2) {
  border-left-color: rgba(47, 224, 232, 0.6);
}

.page-contact .contact-hero__stats li:nth-child(3) {
  border-left-color: rgba(166, 245, 60, 0.65);
}

.page-contact .contact-hero__stats .mono {
  font-family: var(--font-mono);
  font-size: clamp(22px, 5vw, 30px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
}

.page-contact .contact-hero__stats .mono small {
  font-size: 0.5em;
  letter-spacing: 0;
  color: var(--lime);
  vertical-align: super;
}

.page-contact .contact-hero__stats em {
  font-style: normal;
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--muted);
}

@media (min-width: 900px) {
  .page-contact .contact-hero {
    padding: 64px 0 76px;
  }

  .page-contact .contact-hero__inner {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
    align-items: end;
    gap: 56px;
  }

  .page-contact .contact-hero__stats {
    grid-template-columns: 1fr;
    gap: 20px;
    padding-bottom: 10px;
  }
}

/* ---------- 合作方式矩阵 ---------- */
.page-contact .coop-figure {
  position: relative;
  margin: 0 0 22px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--ink-2);
}

.page-contact .coop-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  opacity: 0.82;
}

.page-contact .coop-matrix {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--coop-line-w);
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
}

.page-contact .coop-cell {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px 20px 28px;
  background: var(--panel);
  transition: background 0.18s var(--coop-ease);
}

.page-contact .coop-cell::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 3px;
  background: var(--cyan);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.22s var(--coop-ease);
}

.page-contact .coop-cell:hover::before,
.page-contact .coop-cell:focus-within::before {
  transform: scaleY(1);
}

.page-contact .coop-cell:hover {
  background: #0E2942;
}

.page-contact .coop-cell--lead {
  gap: 12px;
  padding: 28px 22px 32px;
  background:
    radial-gradient(120% 100% at 100% 0%, rgba(47, 224, 232, 0.12), transparent 62%),
    var(--panel);
}

.page-contact .coop-cell--lead:hover {
  background:
    radial-gradient(120% 100% at 100% 0%, rgba(47, 224, 232, 0.18), transparent 62%),
    #0E2942;
}

.page-contact .coop-cell__no {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-contact .coop-cell__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(20px, 2.4vw, 26px);
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-contact .coop-cell__who {
  align-self: flex-start;
  margin: 0;
  padding: 5px 11px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--cyan);
  background: var(--cyan-soft);
}

.page-contact .coop-cell__body {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .coop-cell__list {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-contact .coop-cell__list li {
  position: relative;
  padding-left: 16px;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--text);
}

.page-contact .coop-cell__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 2px;
  background: var(--lime);
}

@media (min-width: 900px) {
  .page-contact .coop-matrix {
    grid-template-columns: 1.5fr 1fr;
  }

  .page-contact .coop-cell {
    padding: 30px 28px 36px;
  }

  .page-contact .coop-cell--lead {
    padding: 36px 32px 40px;
  }
}

/* ---------- 四步流程 ---------- */
.page-contact .flow-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  counter-reset: none;
}

.page-contact .flow-step {
  position: relative;
  padding: 22px 20px 24px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--ink-2);
  transition: opacity 0.16s var(--coop-ease), border-color 0.16s var(--coop-ease);
}

.page-contact .flow-step__no {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(32px, 8vw, 44px);
  line-height: 1;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
  opacity: 0.9;
}

.page-contact .flow-step__title {
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: 0.01em;
  color: var(--text);
}

.page-contact .flow-step__body {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .flow-step__eta {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--lime);
}

.page-contact .flow-steps:hover .flow-step {
  opacity: 0.62;
}

.page-contact .flow-step:hover,
.page-contact .flow-step:hover + .flow-step,
.page-contact .flow-step:has(+ .flow-step:hover) {
  opacity: 1;
}

.page-contact .flow-step:hover {
  border-color: rgba(47, 224, 232, 0.6);
}

@media (min-width: 880px) {
  .page-contact .flow-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
  }

  .page-contact .flow-step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 42px;
    right: -21px;
    width: 22px;
    border-top: 2px dashed var(--lime);
    pointer-events: none;
  }
}

/* ---------- 联系面板 ---------- */
.page-contact .contact-panel {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(150deg, #0B2136 0%, #061523 74%);
  padding: 26px 20px;
  box-shadow: var(--shadow);
}

.page-contact .contact-panel::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), rgba(47, 224, 232, 0) 72%);
  pointer-events: none;
}

.page-contact .contact-panel__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.14;
  pointer-events: none;
}

.page-contact .contact-panel__list {
  position: relative;
  z-index: 1;
  margin: 0;
}

.page-contact .contact-row {
  display: grid;
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px dashed var(--line);
}

.page-contact .contact-row:first-child {
  padding-top: 4px;
}

.page-contact .contact-row:last-child {
  border-bottom: 0;
  padding-bottom: 4px;
}

.page-contact .contact-row dt {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-contact .contact-row dd {
  margin: 0;
}

.page-contact .contact-row__value {
  margin: 0;
  font-size: 17px;
  line-height: 1.5;
  color: var(--text);
  word-break: break-word;
}

.page-contact .contact-row__value.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}

.page-contact .contact-row__note {
  margin: 6px 0 0;
  max-width: 46em;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}

@media (min-width: 760px) {
  .page-contact .contact-panel {
    padding: 34px 34px 30px;
  }

  .page-contact .contact-row {
    grid-template-columns: 120px minmax(0, 1fr);
    gap: 26px;
    align-items: start;
    padding: 22px 0;
  }

  .page-contact .contact-row dt {
    padding-top: 4px;
  }
}

/* ---------- 咨询清单 ---------- */
.page-contact .check-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  border-top: 1px solid var(--line);
  padding-top: 24px;
}

.page-contact .check-list li {
  position: relative;
  padding-left: 32px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text);
}

.page-contact .check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 5px;
  width: 17px;
  height: 17px;
  border: 1px solid rgba(47, 224, 232, 0.7);
  border-radius: 3px;
  background: var(--cyan-soft);
}

.page-contact .check-list li::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 8px;
  width: 5px;
  height: 9px;
  border-right: 2px solid var(--lime);
  border-bottom: 2px solid var(--lime);
  transform: rotate(42deg);
}

@media (min-width: 780px) {
  .page-contact .check-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px 34px;
  }
}

/* ---------- 常见问题 ---------- */
.page-contact .faq-list {
  border-top: 1px solid var(--line);
}

.page-contact .faq-item {
  border-bottom: 1px solid var(--line);
}

.page-contact .faq-item summary {
  position: relative;
  padding: 20px 46px 20px 0;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--text);
  transition: color 0.16s var(--coop-ease);
}

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

.page-contact .faq-item summary::after {
  content: "+";
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 19px;
  line-height: 1;
  color: var(--cyan);
}

.page-contact .faq-item[open] summary {
  color: var(--cyan);
}

.page-contact .faq-item[open] summary::after {
  content: "–";
  color: var(--lime);
}

.page-contact .faq-item p {
  margin: 0;
  padding: 0 0 22px;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 延伸了解 ---------- */
.page-contact .contact-next__inner {
  display: grid;
  gap: 16px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}

.page-contact .contact-next__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.01em;
  color: var(--muted);
}

.page-contact .contact-next__links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-contact .contact-next__links a {
  display: inline-flex;
  align-items: center;
  padding: 9px 15px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  font-size: 13.5px;
  color: var(--text);
  transition: border-color 0.16s var(--coop-ease), color 0.16s var(--coop-ease), background 0.16s var(--coop-ease);
}

.page-contact .contact-next__links a:hover,
.page-contact .contact-next__links a:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
  background: var(--cyan-soft);
}

@media (min-width: 880px) {
  .page-contact .contact-next__inner {
    grid-template-columns: 200px minmax(0, 1fr);
    align-items: center;
    gap: 32px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .coop-cell,
  .page-contact .coop-cell::before,
  .page-contact .flow-step,
  .page-contact .faq-item summary,
  .page-contact .contact-next__links a {
    transition: none;
  }
}