.page-contact {
  --contact-gap: clamp(20px, 3vw, 32px);
  background: var(--ink);
  color: var(--body-text);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-contact .contact-crumb {
  padding-top: clamp(16px, 3vw, 28px);
}

/* ---------- 首屏框景 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: clamp(22px, 4vw, 48px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    radial-gradient(130% 150% at 4% 0%, rgba(14, 59, 58, 0.9) 0%, rgba(10, 16, 25, 0.25) 52%, transparent 72%),
    linear-gradient(158deg, var(--char) 0%, var(--ink-2) 100%);
  overflow: hidden;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 10px auto auto 10px;
  width: 42px;
  height: 42px;
  border-top: 1px solid var(--cyan);
  border-left: 1px solid var(--cyan);
  opacity: 0.7;
  pointer-events: none;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  right: -70px;
  top: -80px;
  width: 300px;
  height: 300px;
  background: repeating-linear-gradient(
    118deg,
    rgba(53, 242, 208, 0.16) 0 2px,
    transparent 2px 13px
  );
  transform: rotate(9deg);
  pointer-events: none;
}

.page-contact .contact-hero__rail {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--line-soft);
}

.page-contact .contact-hero__rail-tag {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-contact .contact-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--contact-gap);
  padding-top: clamp(20px, 3vw, 34px);
}

.page-contact .eyebrow {
  display: block;
  margin: 0 0 12px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .eyebrow::before {
  content: "— ";
  color: var(--steel);
}

.page-contact .contact-hero h1 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(28px, 5.4vw, 52px);
  line-height: 1.16;
  letter-spacing: 0.01em;
  color: var(--frost);
}

.page-contact .contact-hero__intro {
  margin: 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--body-text);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-contact .contact-hero__panel {
  align-self: start;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: linear-gradient(180deg, rgba(27, 36, 49, 0.95), rgba(10, 16, 25, 0.9));
  box-shadow: inset 0 1px 0 rgba(232, 241, 255, 0.05);
}

.page-contact .contact-hero__panel-title {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--mist);
  text-transform: uppercase;
}

.page-contact .contact-status {
  margin: 0;
  display: grid;
  gap: 10px;
}

.page-contact .contact-status__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .contact-status__row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .contact-status dt {
  font-size: 13px;
  color: var(--mist);
}

.page-contact .contact-status dd {
  margin: 0;
  font-size: 15px;
  color: var(--frost);
}

.page-contact .contact-hero__panel-note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--dim-text);
}

/* ---------- 章节头 ---------- */
.page-contact .contact-section-head {
  max-width: 62ch;
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-contact .contact-section-head h2 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 3.6vw, 36px);
  line-height: 1.25;
  color: var(--frost);
}

.page-contact .contact-section-head__sub {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--dim-text);
}

/* ---------- 场景 + 联系卡 双栏 ---------- */
.page-contact .contact-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--contact-gap);
}

.page-contact .scene-item {
  margin-bottom: 12px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  background: linear-gradient(180deg, rgba(20, 27, 38, 0.95), rgba(10, 16, 25, 0.92));
  overflow: hidden;
  transition: border-color 240ms var(--ease);
}

.page-contact .scene-item[open] {
  border-color: rgba(53, 242, 208, 0.45);
  box-shadow: 0 0 0 1px rgba(53, 242, 208, 0.08);
}

.page-contact .scene-item > summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-ui);
  font-size: 17px;
  letter-spacing: 0.03em;
  line-height: 1.45;
  color: var(--frost);
}

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

.page-contact .scene-item > summary::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-data);
  font-size: 18px;
  color: var(--cyan);
}

.page-contact .scene-item[open] > summary::after {
  content: "–";
}

.page-contact .scene-num {
  flex: none;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
  opacity: 0.85;
}

.page-contact .scene-name {
  min-width: 0;
}

.page-contact .scene-body {
  padding: 0 18px 18px;
}

.page-contact .scene-body p {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--body-text);
}

.page-contact .scene-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
}

.page-contact .scene-links a {
  font-family: var(--font-ui);
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 242, 208, 0.35);
  padding-bottom: 1px;
}

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

/* ---------- 联系卡 ---------- */
.page-contact .contact-card {
  padding: clamp(20px, 3vw, 28px);
  border: 1px solid rgba(53, 242, 208, 0.3);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(14, 59, 58, 0.55) 0%, rgba(10, 16, 25, 0.95) 45%),
    var(--char);
}

.page-contact .contact-card__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .contact-card__head h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 21px;
  color: var(--frost);
}

.page-contact .contact-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--line-soft);
}

.page-contact .contact-row__label {
  flex: none;
  min-width: 62px;
  font-family: var(--font-ui);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

.page-contact .contact-row__value {
  flex: 1 1 180px;
  min-width: 0;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--frost);
  overflow-wrap: anywhere;
}

.page-contact .contact-row--stack {
  flex-direction: column;
  align-items: flex-start;
  border-bottom: 0;
}

.page-contact .contact-row .copy-btn {
  flex: none;
}

.page-contact .copy-btn[data-copied="true"] {
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-contact .contact-note {
  margin: 8px 0 22px;
  padding: 12px 14px;
  border-left: 2px solid var(--orange);
  background: rgba(255, 122, 26, 0.07);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--body-text);
}

.page-contact .contact-media {
  margin: 0;
}

.page-contact .contact-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-soft);
  filter: saturate(0.9) contrast(1.05);
}

.page-contact .contact-media .media-frame__caption {
  display: block;
  margin-top: 8px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--dim-text);
}

/* ---------- 合作流程条 ---------- */
.page-contact .flow {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.page-contact .flow-step {
  position: relative;
  padding: 20px 18px 22px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  background: linear-gradient(180deg, rgba(27, 36, 49, 0.85), rgba(7, 11, 18, 0.9));
  overflow: hidden;
}

.page-contact .flow-step::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--orange), rgba(255, 122, 26, 0));
}

.page-contact .flow-step__idx {
  display: inline-block;
  margin-bottom: 10px;
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.page-contact .flow-step__title {
  margin: 0 0 8px;
  font-family: var(--font-ui);
  font-size: 18px;
  letter-spacing: 0.05em;
  color: var(--frost);
}

.page-contact .flow-step__text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--body-text);
}

/* ---------- 地址与来访 ---------- */
.page-contact .contact-visit__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--contact-gap);
  align-items: center;
}

.page-contact .contact-visit__media {
  margin: 0;
  order: 2;
}

.page-contact .contact-visit__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  filter: saturate(0.85) brightness(0.92);
}

.page-contact .contact-visit__media .media-frame__caption {
  display: block;
  margin-top: 8px;
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--dim-text);
}

.page-contact .contact-visit__body {
  order: 1;
}

.page-contact .contact-visit__body h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(23px, 3.4vw, 32px);
  line-height: 1.28;
  color: var(--frost);
}

.page-contact .contact-visit__body p {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--body-text);
}

.page-contact .contact-visit__list {
  margin: 18px 0 0;
  padding: 14px 0 0;
  list-style: none;
  border-top: 1px solid var(--line-soft);
  display: grid;
  gap: 8px;
}

.page-contact .contact-visit__list li {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 13.5px;
  color: var(--body-text);
}

.page-contact .contact-visit__list .mono {
  flex: none;
  min-width: 48px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--violet);
}

/* ---------- FAQ ---------- */
.page-contact .faq-list {
  display: grid;
  gap: 12px;
}

.page-contact .faq-item {
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  background: rgba(7, 11, 18, 0.55);
  overflow: hidden;
  transition: border-color 240ms var(--ease);
}

.page-contact .faq-item[open] {
  border-color: rgba(139, 92, 246, 0.55);
}

.page-contact .faq-item > summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  line-height: 1.6;
  color: var(--frost);
}

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

.page-contact .faq-mark {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1px solid rgba(139, 92, 246, 0.6);
  font-family: var(--font-data);
  font-size: 11px;
  color: var(--violet);
}

.page-contact .faq-body {
  padding: 0 18px 18px 52px;
}

.page-contact .faq-body p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--body-text);
}

.page-contact .faq-body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 242, 208, 0.35);
}

.page-contact .faq-body a:hover,
.page-contact .faq-body a:focus-visible {
  color: var(--frost);
}

/* ---------- 底部收束 ---------- */
.page-contact .contact-tail {
  margin-top: clamp(28px, 4vw, 44px);
  padding-top: clamp(22px, 3vw, 32px);
  border-top: 1px dashed var(--line);
  display: grid;
  gap: 18px;
}

.page-contact .contact-tail__text {
  margin: 0;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.85;
  color: var(--body-text);
}

.page-contact .contact-tail__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 焦点可见 ---------- */
.page-contact a:focus-visible,
.page-contact summary:focus-visible,
.page-contact button:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-contact .contact-hero__intro {
    font-size: 16px;
  }

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

  .page-contact .contact-tail {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(280px, 1fr);
    align-items: start;
    gap: clamp(28px, 4vw, 52px);
  }

  .page-contact .contact-split {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 1fr);
    align-items: start;
    gap: clamp(28px, 3.4vw, 44px);
  }

  .page-contact .contact-visit__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: clamp(28px, 4vw, 56px);
  }

  .page-contact .contact-visit__media {
    order: 1;
  }

  .page-contact .contact-visit__body {
    order: 2;
  }

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

  .page-contact .contact-scenes {
    padding-top: clamp(48px, 6vw, 80px);
  }
}

@media (min-width: 1200px) {
  .page-contact .contact-card {
    position: sticky;
    top: 96px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .scene-item,
  .page-contact .faq-item {
    transition: none;
  }
}