.page-contact {
  background: var(--ink);
  color: var(--text);
  font-family: var(--font-body);
  overflow-x: clip;
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  max-width: var(--maxw);
  margin-inline: auto;
  padding: 22px var(--pad) 0;
}

.page-contact .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--muted);
}

.page-contact .breadcrumb-list li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.page-contact .breadcrumb-list li + li::before {
  content: "/";
  color: var(--line);
}

.page-contact .breadcrumb-list a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

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

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(820px 380px at 84% 0%, rgba(0, 229, 255, .13), transparent 64%),
    radial-gradient(760px 400px at 2% 100%, rgba(168, 85, 247, .11), transparent 68%);
}

.page-contact .contact-hero-inner {
  max-width: var(--maxw);
  margin-inline: auto;
  padding: clamp(30px, 5vw, 66px) var(--pad) clamp(34px, 5vw, 68px);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 52px);
  align-items: center;
}

@media (min-width: 960px) {
  .page-contact .contact-hero-inner {
    grid-template-columns: 7fr 5fr;
    align-items: end;
  }
}

.page-contact .contact-hero-copy {
  min-width: 0;
}

.page-contact .eyebrow {
  margin: 0 0 18px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact h1 {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 5.2vw, 60px);
  line-height: 1.1;
  letter-spacing: -.02em;
  overflow-wrap: break-word;
}

.page-contact .contact-lead {
  margin: 0 0 28px;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-contact .contact-hero-media {
  margin: 0;
  min-width: 0;
}

.page-contact .img-frame {
  position: relative;
  border: 1px solid var(--line);
  background: var(--hull);
  overflow: hidden;
}

.page-contact .img-frame--slant {
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 44px), calc(100% - 44px) 100%, 0 100%);
}

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

.page-contact .contact-hero-media img {
  aspect-ratio: 3 / 2;
  filter: saturate(.92) contrast(1.06);
}

/* ---------- 联系方式条 ---------- */
.page-contact .contact-strip {
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(11, 18, 36, .92), rgba(5, 7, 15, 0));
}

.page-contact .contact-strip-inner {
  max-width: var(--maxw);
  margin-inline: auto;
  padding: clamp(26px, 3.6vw, 44px) var(--pad);
}

.page-contact .contact-strip-title {
  margin: 0 0 18px;
  font-family: var(--font-num);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .contact-fields {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 0;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

@media (min-width: 820px) {
  .page-contact .contact-fields {
    grid-template-columns: 1.1fr 1fr 2.4fr;
  }
}

.page-contact .contact-field {
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding: 16px 18px;
  background: var(--hull);
  min-width: 0;
  transition: background .25s var(--ease);
}

.page-contact .contact-field:hover {
  background: var(--panel);
}

.page-contact .contact-field-label {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--muted);
}

.page-contact .contact-field-value {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  min-width: 0;
  font-family: var(--font-num);
  font-size: 15px;
  line-height: 1.5;
  color: var(--text);
  overflow-wrap: anywhere;
  word-break: break-word;
  user-select: text;
}

.page-contact .contact-copy {
  flex: none;
  font-size: 14px;
  color: var(--cyan);
  opacity: 0;
  transition: opacity .22s var(--ease);
}

.page-contact .contact-field:hover .contact-copy,
.page-contact .contact-field:focus-within .contact-copy {
  opacity: 1;
}

.page-contact .contact-strip-note {
  margin: 16px 0 0;
  max-width: 60em;
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 通用区块 ---------- */
.page-contact .contact-section {
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-section-inner {
  max-width: var(--maxw);
  margin-inline: auto;
  padding: clamp(46px, 7vw, 96px) var(--pad);
}

.page-contact .section-head {
  margin-bottom: clamp(28px, 4vw, 44px);
}

.page-contact .section-num {
  display: block;
  margin: 0 0 14px;
  font-family: var(--font-num);
  font-size: clamp(34px, 6vw, 78px);
  font-weight: 700;
  line-height: .85;
  letter-spacing: -.04em;
  color: var(--line);
}

.page-contact .section-title {
  margin: 0 0 14px;
  max-width: 24em;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(23px, 3.2vw, 38px);
  line-height: 1.24;
  letter-spacing: -.01em;
}

.page-contact .section-desc {
  margin: 0;
  max-width: 42em;
  font-size: 16px;
  line-height: 1.76;
  color: var(--muted);
}

/* ---------- 合作方向 ---------- */
.page-contact .contact-tracks {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

@media (min-width: 940px) {
  .page-contact .contact-tracks {
    grid-template-columns: 5fr 4fr 3fr;
    gap: 20px;
    align-items: stretch;
  }
}

.page-contact .track {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 26px 22px 26px;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--hull), rgba(5, 7, 15, .62));
  box-shadow: var(--shadow-panel);
  transition: border-color .25s var(--ease), transform .25s var(--ease);
}

.page-contact .track:hover {
  border-color: var(--cyan);
  transform: translateY(-3px);
}

.page-contact .track--lead {
  border-color: rgba(0, 229, 255, .34);
}

.page-contact .track--tail {
  background: linear-gradient(180deg, var(--panel), rgba(5, 7, 15, .68));
}

.page-contact .badge {
  align-self: flex-start;
  display: inline-block;
  padding: 5px 10px;
  border: 1px solid currentColor;
  border-radius: var(--radius);
  font-family: var(--font-num);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .16em;
}

.page-contact .badge--cyan { color: var(--cyan); }
.page-contact .badge--violet { color: var(--violet); }
.page-contact .badge--mint { color: var(--mint); }

.page-contact .track-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  line-height: 1.38;
}

.page-contact .track-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .track-list {
  list-style: none;
  margin: auto 0 0;
  padding: 14px 0 0;
  display: grid;
  gap: 9px;
  border-top: 1px solid var(--line);
}

.page-contact .track-list li {
  position: relative;
  padding-left: 15px;
  font-size: 13.5px;
  line-height: 1.62;
  color: var(--muted);
}

.page-contact .track-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .66em;
  width: 7px;
  height: 1px;
  background: var(--cyan);
}

/* ---------- 流程 ---------- */
.page-contact .contact-flow-media {
  margin: 0 0 clamp(28px, 4vw, 44px);
}

.page-contact .contact-flow-media img {
  aspect-ratio: 3 / 2;
}

.page-contact .flow-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

@media (min-width: 1040px) {
  .page-contact .flow-list {
    grid-template-columns: repeat(5, 1fr);
  }
}

.page-contact .flow-step {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px 20px 22px;
  min-width: 0;
  background: var(--ink);
  transition: background .25s var(--ease);
}

.page-contact .flow-step:hover,
.page-contact .flow-step:focus-within {
  background: var(--hull);
}

.page-contact .flow-num {
  font-family: var(--font-num);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--cyan);
  opacity: .62;
}

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

.page-contact .flow-time {
  margin: 0;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--magenta);
}

.page-contact .flow-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.74;
  color: var(--muted);
}

.page-contact .flow-prep {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
}

.page-contact .flow-prep-label {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-contact .flow-prep ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-contact .flow-prep li {
  position: relative;
  padding-left: 13px;
  font-size: 13px;
  line-height: 1.56;
  color: var(--muted);
}

.page-contact .flow-prep li::before {
  content: "·";
  position: absolute;
  left: 2px;
  color: var(--line);
}

@media (hover: hover) {
  .page-contact .flow-prep {
    max-height: 0;
    padding-top: 0;
    opacity: 0;
    overflow: hidden;
    border-top-color: transparent;
    transition: max-height .32s var(--ease), opacity .28s var(--ease), padding-top .32s var(--ease);
  }

  .page-contact .flow-step:hover .flow-prep,
  .page-contact .flow-step:focus-within .flow-prep {
    max-height: 240px;
    padding-top: 12px;
    opacity: 1;
    border-top-color: var(--line);
  }
}

/* ---------- 响应与范围 ---------- */
.page-contact .contact-response {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

@media (min-width: 940px) {
  .page-contact .contact-response {
    grid-template-columns: 7fr 5fr;
    gap: 20px;
  }
}

.page-contact .contact-panel {
  padding: 24px 22px 20px;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--hull), rgba(5, 7, 15, .5));
  box-shadow: var(--shadow-panel);
}

.page-contact .contact-panel-title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.4;
  letter-spacing: -.005em;
}

.page-contact .contact-kv {
  display: grid;
  margin: 0;
  border-top: 1px solid var(--line);
}

.page-contact .contact-kv-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

@media (min-width: 640px) {
  .page-contact .contact-kv-row {
    grid-template-columns: 11em 1fr;
    gap: 20px;
    align-items: baseline;
  }
}

.page-contact .contact-kv-key {
  margin: 0;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--muted);
}

.page-contact .contact-kv-val {
  margin: 0;
  font-size: 15px;
  line-height: 1.74;
  color: var(--text);
}

.page-contact .contact-kv-val strong {
  font-family: var(--font-num);
  font-weight: 600;
  color: var(--cyan);
}

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

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

.page-contact .faq-q {
  position: relative;
  display: block;
  padding: 20px 44px 20px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.5;
  color: var(--text);
  transition: color .2s var(--ease);
}

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

.page-contact .faq-q::after {
  content: "+";
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-num);
  font-size: 20px;
  line-height: 1;
  color: var(--cyan);
}

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

.page-contact .faq-item[open] .faq-q::after {
  content: "−";
}

.page-contact .faq-q:hover,
.page-contact .faq-q:focus-visible {
  color: var(--cyan);
}

.page-contact .faq-a {
  padding: 0 0 22px;
}

.page-contact .faq-a p {
  margin: 0;
  max-width: 46em;
  font-size: 15px;
  line-height: 1.82;
  color: var(--muted);
}

/* ---------- 备案信息 ---------- */
.page-contact .registry-panel {
  padding: 28px 24px 26px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--gold);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(244, 194, 76, .055), rgba(5, 7, 15, .42));
}

.page-contact .registry-panel .section-num {
  color: rgba(244, 194, 76, .34);
}

.page-contact .registry-panel .section-desc {
  margin-bottom: 22px;
}

.page-contact .registry-list {
  display: grid;
  margin: 0 0 16px;
  border-top: 1px solid var(--line);
}

.page-contact .registry-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

@media (min-width: 640px) {
  .page-contact .registry-row {
    grid-template-columns: 10em 1fr;
    gap: 20px;
    align-items: baseline;
  }
}

.page-contact .registry-key {
  margin: 0;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--gold);
}

.page-contact .registry-val {
  margin: 0;
  font-family: var(--font-num);
  font-size: 15px;
  line-height: 1.6;
  color: var(--text);
  overflow-wrap: anywhere;
}

.page-contact .registry-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 收尾 ---------- */
.page-contact .contact-back {
  max-width: var(--maxw);
  margin-inline: auto;
  padding: clamp(28px, 4vw, 52px) var(--pad) clamp(34px, 5vw, 64px);
  display: flex;
  flex-direction: column;
  gap: 22px;
  align-items: flex-start;
}

.page-contact .contact-more {
  margin: 0;
  max-width: 52em;
  font-size: 14px;
  line-height: 1.86;
  color: var(--muted);
}

.page-contact .contact-more a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

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

/* ---------- 窄屏收口 ---------- */
@media (max-width: 520px) {
  .page-contact .contact-field-value {
    font-size: 14px;
  }

  .page-contact .contact-copy {
    opacity: 1;
  }

  .page-contact .contact-actions .btn {
    width: 100%;
    text-align: center;
  }

  .page-contact .contact-hero-media {
    clip-path: none;
  }

  .page-contact .img-frame--slant {
    clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
  }
}