.page-contact {
  --pc-line: rgba(44, 74, 110, .62);
  --pc-line-soft: rgba(44, 74, 110, .38);
  --pc-sheen: rgba(255, 106, 42, .14);
  --pc-tealglow: rgba(34, 211, 182, .12);
  background: var(--ink-900);
  color: var(--paper);
  padding-bottom: clamp(2.5rem, 6vw, 4.5rem);
}

.page-contact .breadcrumbs {
  margin-top: 1.25rem;
  margin-bottom: .5rem;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  padding: clamp(1.5rem, 4vw, 2.5rem) 0 clamp(2rem, 5vw, 3.5rem);
  border-bottom: var(--edge);
  background:
    radial-gradient(92% 74% at 8% 0%, var(--pc-sheen), transparent 62%),
    radial-gradient(72% 62% at 96% 6%, var(--pc-tealglow), transparent 58%),
    linear-gradient(180deg, var(--ink-800) 0%, var(--ink-900) 100%);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image: repeating-linear-gradient(90deg, var(--pc-line-soft) 0 1px, transparent 1px 104px);
  opacity: .5;
  pointer-events: none;
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 2.75rem);
  align-items: start;
}

.page-contact h1 {
  font-family: var(--font-head);
  font-size: clamp(2.4rem, 5vw, 4.4rem);
  line-height: 1.06;
  letter-spacing: -.02em;
  margin: .75rem 0 1.1rem;
  color: var(--paper);
}

.page-contact .contact-hero__body .section__lead {
  color: var(--mist);
  font-size: clamp(1rem, 1.15vw, 1.125rem);
  line-height: 1.8;
  max-width: 34em;
}

.page-contact .hero-meta {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1.25rem;
  margin: 1.5rem 0 0;
  padding: 0;
  font-size: .8125rem;
  letter-spacing: .04em;
  color: var(--mist);
}

.page-contact .hero-meta__item {
  position: relative;
  padding-left: .9rem;
}

.page-contact .hero-meta__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: .52em;
  width: 7px;
  height: 7px;
  background: var(--teal);
  border-radius: 50%;
}

.page-contact .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: 1.75rem;
}

/* ---------- 联系展签 ---------- */
.page-contact .contact-card {
  position: relative;
  background: var(--ink-800);
  border: var(--edge);
  box-shadow: var(--shadow-hard);
  padding: clamp(1.1rem, 2.5vw, 1.6rem);
  border-radius: var(--radius);
}

.page-contact .contact-card::after {
  content: "";
  position: absolute;
  top: -2px;
  right: -2px;
  width: 0;
  height: 0;
  border-top: 30px solid var(--orange);
  border-left: 30px solid transparent;
}

.page-contact .contact-card__label {
  margin: 0;
  font-size: .75rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--orange-soft);
}

.page-contact .contact-card__status {
  display: flex;
  align-items: center;
  gap: .5rem;
  margin: .55rem 0 1.15rem;
  font-size: .8125rem;
  color: var(--paper);
}

.page-contact .status-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 0 4px rgba(34, 211, 182, .18);
  animation: pc-pulse 2.6s var(--ease) infinite;
}

@keyframes pc-pulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(34, 211, 182, .18); }
  50% { box-shadow: 0 0 0 8px rgba(34, 211, 182, .06); }
}

.page-contact .contact-lines {
  margin: 0;
  display: grid;
  gap: .9rem;
}

.page-contact .contact-line {
  border-top: 1px solid var(--pc-line);
  padding-top: .8rem;
  display: grid;
  gap: .35rem;
}

.page-contact .contact-line:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-contact .contact-line__key {
  margin: 0;
  font-size: .75rem;
  letter-spacing: .16em;
  color: var(--mist);
}

.page-contact .contact-line__val {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem .75rem;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--paper);
}

.page-contact .contact-line__text {
  overflow-wrap: anywhere;
  word-break: break-word;
  flex: 1 1 12rem;
  min-width: 0;
}

.page-contact .contact-card__note {
  margin: 1.25rem 0 0;
  padding: .9rem 1rem;
  background: rgba(18, 58, 94, .55);
  border-left: 4px solid var(--teal-deep);
  font-size: .875rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .contact-card__foot {
  margin: .85rem 0 0;
  font-size: .875rem;
}

.page-contact .contact-card__foot a {
  color: var(--link);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 通用区块间距 ---------- */
.page-contact .contact-body {
  display: grid;
  gap: clamp(2.75rem, 6vw, 4.5rem);
  padding-top: clamp(2.5rem, 6vw, 4rem);
}

.page-contact .section__label {
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--orange-soft);
  margin: 0 0 .6rem;
}

.page-contact .section__title {
  font-family: var(--font-head);
  font-size: clamp(1.55rem, 2.6vw, 2.3rem);
  line-height: 1.18;
  letter-spacing: -.01em;
  margin: 0;
  color: var(--paper);
}

/* ---------- 合作方向 ---------- */
.page-contact .dirs__grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  align-items: start;
}

.page-contact .dirs__media {
  margin: 0;
  border-radius: var(--radius);
}

.page-contact .dirs__media img,
.page-contact .checklist-section__media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

.page-contact .dirs__lead {
  margin: 1rem 0 1.5rem;
  color: var(--mist);
  line-height: 1.8;
  max-width: 38em;
}

.page-contact .dir-tabs .tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  border-bottom: 1px solid var(--pc-line);
  padding-bottom: .75rem;
}

.page-contact .dir-tabs .tabs__tab {
  font-family: var(--font-mono);
  font-size: .8125rem;
  letter-spacing: .04em;
  padding: .55rem .9rem;
  background: transparent;
  color: var(--mist);
  border: 1px solid var(--pc-line);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 240ms var(--ease), color 240ms var(--ease), border-color 240ms var(--ease);
}

.page-contact .dir-tabs .tabs__tab:hover {
  border-color: var(--orange-soft);
  color: var(--paper);
}

.page-contact .dir-tabs .tabs__tab[aria-selected="true"] {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--ink-900);
  font-weight: 700;
}

.page-contact .dir-tabs .tabs__tab:focus-visible {
  outline: 2px solid var(--link);
  outline-offset: 3px;
}

.page-contact .dir-panel {
  padding: 1.35rem 0 0;
}

.page-contact .dir-panel__title {
  font-family: var(--font-head);
  font-size: 1.2rem;
  margin: 0 0 .65rem;
  color: var(--paper);
}

.page-contact .dir-panel p {
  margin: 0;
  color: var(--mist);
  line-height: 1.8;
}

.page-contact .dir-panel__list {
  list-style: none;
  margin: 1.1rem 0 0;
  padding: 0;
  display: grid;
  gap: .55rem;
}

.page-contact .dir-panel__list li {
  position: relative;
  padding-left: 1.35rem;
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--paper);
}

.page-contact .dir-panel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 8px;
  height: 8px;
  background: var(--teal);
  transform: rotate(45deg);
}

/* ---------- 反馈与纠错 ---------- */
.page-contact .feedback {
  border-top: 1px solid var(--pc-line);
  padding-top: clamp(2rem, 5vw, 3rem);
}

.page-contact .feedback__lead {
  margin: 1rem 0 0;
  color: var(--mist);
  line-height: 1.8;
  max-width: 42em;
}

.page-contact .feedback__grid {
  display: grid;
  gap: .9rem;
  margin-top: 1.75rem;
}

.page-contact .feedback__item {
  background: var(--ink-800);
  border: 1px solid var(--pc-line);
  border-left: 5px solid var(--ink-700);
  border-radius: var(--radius);
  padding: .2rem 1.1rem;
}

.page-contact .feedback__item[open] {
  border-left-color: var(--orange);
  background: linear-gradient(180deg, rgba(255, 106, 42, .07), transparent 60%), var(--ink-800);
}

.page-contact .feedback__item .disclosure__summary {
  cursor: pointer;
  padding: .95rem 0;
  font-family: var(--font-head);
  font-size: 1.02rem;
  color: var(--paper);
  list-style: none;
}

.page-contact .feedback__item .disclosure__summary::-webkit-details-marker {
  display: none;
}

.page-contact .feedback__item .disclosure__summary::after {
  content: "+";
  float: right;
  font-family: var(--font-mono);
  color: var(--orange);
}

.page-contact .feedback__item[open] .disclosure__summary::after {
  content: "−";
}

.page-contact .feedback__item .disclosure__body {
  padding-bottom: 1rem;
  color: var(--mist);
  line-height: 1.8;
}

.page-contact .feedback__item .disclosure__body p {
  margin: 0 0 .6rem;
}

.page-contact .feedback__meta {
  font-size: .78rem;
  letter-spacing: .04em;
  color: var(--teal);
  border-top: 1px dashed var(--pc-line);
  padding-top: .6rem;
}

/* ---------- 资料清单 ---------- */
.page-contact .checklist-section {
  border-top: 1px solid var(--pc-line);
  padding-top: clamp(2rem, 5vw, 3rem);
}

.page-contact .checklist-section__grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  align-items: start;
}

.page-contact .checklist-section__lead {
  margin: 1rem 0 1.5rem;
  color: var(--mist);
  line-height: 1.8;
  max-width: 38em;
}

.page-contact .checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .7rem;
}

.page-contact .checklist__item {
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr);
  gap: .9rem;
  align-items: start;
  background: var(--ink-800);
  border: 1px solid var(--pc-line);
  border-radius: var(--radius);
  padding: .9rem 1rem;
}

.page-contact .checklist__item:nth-child(odd) {
  border-left: 5px solid var(--ink-700);
}

.page-contact .checklist__num {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--orange);
  line-height: 1.4;
}

.page-contact .checklist__title {
  font-family: var(--font-head);
  font-size: 1rem;
  margin: 0 0 .35rem;
  color: var(--paper);
}

.page-contact .checklist__text {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .checklist-section__media {
  margin: 0;
  border-radius: var(--radius);
}

/* ---------- 处理节奏 ---------- */
.page-contact .rhythm {
  border-top: 1px solid var(--pc-line);
  padding-top: clamp(2rem, 5vw, 3rem);
}

.page-contact .rhythm__lead {
  margin: 1rem 0 0;
  color: var(--mist);
  line-height: 1.8;
  max-width: 44em;
}

.page-contact .rhythm__list {
  list-style: none;
  margin: 1.75rem 0 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 2px solid var(--ink-700);
}

.page-contact .rhythm__row {
  display: grid;
  gap: .35rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--pc-line);
}

.page-contact .rhythm__time {
  font-size: .8125rem;
  letter-spacing: .04em;
  color: var(--teal);
}

.page-contact .rhythm__desc {
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--paper);
}

.page-contact .rhythm__foot {
  margin: 1.75rem 0 0;
  font-size: .9375rem;
  line-height: 1.9;
  color: var(--mist);
}

.page-contact .rhythm__foot a {
  color: var(--link);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-contact .feedback__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .rhythm__row {
    grid-template-columns: minmax(12rem, 15rem) minmax(0, 1fr);
    gap: 1.5rem;
    align-items: baseline;
  }

  .page-contact .checklist-section__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }

  .page-contact .checklist-section__media {
    position: sticky;
    top: 6rem;
  }
}

@media (min-width: 980px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.18fr) minmax(20rem, .82fr);
    gap: clamp(2rem, 4vw, 3.5rem);
  }

  .page-contact .contact-hero__aside {
    margin-top: .5rem;
  }

  .page-contact .dirs__grid {
    grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
  }

  .page-contact .dirs__media {
    position: sticky;
    top: 6rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .status-dot {
    animation: none;
  }

  .page-contact .dir-tabs .tabs__tab {
    transition: none;
  }
}
<<<END>>>