.page-contact {
  --contact-card-bg: #08211c;
  --contact-hair: rgba(47, 240, 196, 0.16);
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16.5px;
  line-height: 1.75;
  padding: 0 0 72px;
}

.page-contact .contact-crumbs {
  padding: 22px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-contact .contact-crumbs a {
  color: var(--cyan-soft);
  text-decoration: none;
}

.page-contact .contact-crumbs a:hover {
  color: var(--orange);
}

/* ---------- 页头 ---------- */

.page-contact .contact-head {
  padding: 20px 0 36px;
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-head .eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .contact-head h1 {
  margin: 0 0 16px;
  font-family: var(--font-narrow);
  font-weight: 700;
  font-size: clamp(27px, 6.2vw, 46px);
  line-height: 1.22;
  letter-spacing: -0.01em;
  max-width: 20ch;
}

.page-contact .contact-head__lede {
  margin: 0 0 22px;
  max-width: 64ch;
  color: var(--ink);
}

.page-contact .contact-head__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* ---------- 左右分栏 ---------- */

.page-contact .contact-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  padding: 40px 0 0;
}

.page-contact .contact-side {
  display: flex;
  flex-direction: column;
  gap: 32px;
  min-width: 0;
}

/* ---------- 左侧联系卡 ---------- */

.page-contact .contact-card {
  position: relative;
  border: 1px solid var(--line);
  background: var(--contact-card-bg);
  overflow: hidden;
  transition: border-color var(--fast) ease;
}

.page-contact .contact-card:hover {
  border-color: rgba(47, 240, 196, 0.42);
}

.page-contact .contact-card__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.32;
  filter: saturate(0.7) contrast(1.06);
}

.page-contact .contact-card__veil {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(6, 26, 22, 0.4) 0%,
    rgba(6, 26, 22, 0.88) 42%,
    rgba(6, 26, 22, 0.98) 100%
  );
}

.page-contact .contact-card__body {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 28px 20px 30px;
}

.page-contact .contact-card__title {
  margin: 0;
  font-family: var(--font-narrow);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-contact .contact-card__note {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--cyan-soft);
}

.page-contact .contact-fields {
  margin: 0;
  border-top: 1px solid var(--contact-hair);
}

.page-contact .contact-field {
  padding: 14px 0;
  border-bottom: 1px solid var(--contact-hair);
}

.page-contact .contact-field dt {
  margin: 0 0 6px;
  font-size: 11.5px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .contact-field dd {
  margin: 0;
  font-size: 17px;
  color: var(--ink);
  word-break: break-word;
  overflow-wrap: anywhere;
}

.page-contact .contact-field dd a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 240, 196, 0.4);
  transition: color var(--fast) ease, border-color var(--fast) ease;
}

.page-contact .contact-field dd a:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.page-contact .contact-more {
  border-top: 1px dashed var(--contact-hair);
  padding-top: 14px;
}

.page-contact .contact-more summary {
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan-soft);
}

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

.page-contact .contact-more summary::before {
  content: "+";
  display: inline-block;
  width: 1.3em;
  color: var(--cyan);
  font-weight: 700;
}

.page-contact .contact-more[open] summary::before {
  content: "–";
}

.page-contact .contact-more p {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .contact-card__legal {
  margin: 0;
  font-size: 13px;
  line-height: 1.66;
  color: var(--muted);
}

.page-contact .contact-card__legal a {
  color: var(--cyan-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 右侧纠错面板 ---------- */

.page-contact .fix-panel__lede {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .fix-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-contact .fix-list li {
  position: relative;
  border: 1px solid var(--line);
  background: rgba(6, 26, 22, 0.55);
  transition: border-color var(--fast) ease, background var(--fast) ease;
}

.page-contact .fix-list li:hover {
  border-color: rgba(47, 240, 196, 0.38);
}

.page-contact .fix-check {
  appearance: none;
  -webkit-appearance: none;
  position: absolute;
  top: 15px;
  left: 14px;
  width: 16px;
  height: 16px;
  margin: 0;
  border: 1px solid var(--line);
  background: transparent;
  cursor: pointer;
  transition: background var(--fast) ease, border-color var(--fast) ease;
}

.page-contact .fix-check:checked {
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-contact .fix-check:checked::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 0;
  width: 5px;
  height: 10px;
  border-right: 2px solid var(--bg);
  border-bottom: 2px solid var(--bg);
  transform: rotate(42deg);
}

.page-contact .fix-check:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

.page-contact .fix-label {
  display: block;
  padding: 12px 15px 13px 44px;
  cursor: pointer;
}

.page-contact .fix-label__idx {
  display: block;
  margin-bottom: 3px;
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-contact .fix-label__t {
  display: block;
  margin-bottom: 4px;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--ink);
}

.page-contact .fix-label__d {
  display: block;
  font-size: 14px;
  line-height: 1.68;
  color: var(--muted);
}

.page-contact .fix-check:checked ~ .fix-label .fix-label__t {
  color: var(--cyan-soft);
}

.page-contact .fix-check:checked ~ .fix-label .fix-label__idx {
  color: var(--amber);
}

.page-contact .fix-panel__foot {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .fix-panel__foot a {
  color: var(--cyan-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .fix-panel__foot a:hover {
  color: var(--orange);
}

/* ---------- 右侧合作方向 ---------- */

.page-contact .coop-block {
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-width: 0;
}

.page-contact .coop-figure {
  margin: 0;
}

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

.page-contact .coop-block > h2 {
  margin: 0;
  font-family: var(--font-narrow);
  font-size: clamp(20px, 4vw, 24px);
  font-weight: 700;
  letter-spacing: -0.005em;
}

.page-contact .coop-list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: coop;
  border-top: 1px solid var(--line);
}

.page-contact .coop-list li {
  position: relative;
  padding: 16px 0 16px 46px;
  border-bottom: 1px solid var(--line);
  transition: background var(--fast) ease;
}

.page-contact .coop-list li::before {
  counter-increment: coop;
  content: "0" counter(coop);
  position: absolute;
  left: 0;
  top: 17px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--orange);
}

.page-contact .coop-list li:hover {
  background: rgba(12, 42, 35, 0.55);
}

.page-contact .coop-list__t {
  display: block;
  margin-bottom: 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.page-contact .coop-list__d {
  display: block;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .coop-block__more {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .coop-block__more a {
  color: var(--cyan-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .coop-block__more a:hover {
  color: var(--orange);
}

/* ---------- 处理节奏刻度带 ---------- */

.page-contact .pace {
  margin-top: 60px;
}

.page-contact .pace .section-head h2 {
  margin: 6px 0 0;
  font-family: var(--font-narrow);
  font-size: clamp(21px, 4vw, 30px);
  font-weight: 700;
  letter-spacing: -0.006em;
}

.page-contact .pace .section-head .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .pace-track {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .pace-step {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 16px 22px;
  background: var(--panel);
  transition: background var(--fast) ease;
}

.page-contact .pace-step::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 3px;
  width: 0;
  background: var(--cyan);
  transition: width var(--fast) ease;
}

.page-contact .pace-step:hover,
.page-contact .pace-step:focus-within {
  background: var(--panel-2);
}

.page-contact .pace-step:hover::after {
  width: 100%;
}

.page-contact .pace-step__no {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-contact .pace-step__t {
  font-family: var(--font-narrow);
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.page-contact .pace-step__d {
  font-size: 14px;
  line-height: 1.68;
  color: var(--muted);
}

/* ---------- 相关链接 ---------- */

.page-contact .contact-links {
  margin-top: 44px;
  padding-top: 26px;
  border-top: 1px dashed var(--line);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-contact .contact-links__t {
  margin: 0;
  font-family: var(--font-narrow);
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.page-contact .contact-links ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

.page-contact .contact-links a {
  display: block;
  padding: 12px 14px;
  border: 1px solid var(--line);
  color: var(--ink);
  text-decoration: none;
  font-size: 14.5px;
  line-height: 1.55;
  transition: border-color var(--fast) ease, color var(--fast) ease, background var(--fast) ease;
}

.page-contact .contact-links a::before {
  content: "→ ";
  font-family: var(--font-mono);
  color: var(--cyan);
}

.page-contact .contact-links a:hover {
  border-color: var(--cyan);
  background: rgba(12, 42, 35, 0.6);
  color: var(--cyan-soft);
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-contact .contact-head {
    padding-top: 26px;
  }

  .page-contact .contact-card__body {
    padding: 34px 30px 36px;
  }

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

  .page-contact .contact-links {
    grid-template-columns: 250px minmax(0, 1fr);
    align-items: start;
    gap: 26px;
  }

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

@media (min-width: 960px) {
  .page-contact .contact-split {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 32px;
    align-items: start;
  }

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

  .page-contact .pace-step {
    padding: 20px 18px 26px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-card,
  .page-contact .fix-list li,
  .page-contact .fix-check,
  .page-contact .coop-list li,
  .page-contact .pace-step,
  .page-contact .pace-step::after,
  .page-contact .contact-links a {
    transition: none;
  }
}