/* ===== 合作与联系页 ===== */
.page-contact {
  --pc-ink-soft: rgba(7, 26, 43, .74);
  --pc-ink-line: rgba(7, 26, 43, .14);
  --pc-pearl-soft: rgba(250, 247, 240, .78);
  --pc-veil: rgba(250, 247, 240, .08);
  --pc-veil-line: rgba(250, 247, 240, .18);
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 5vw, 56px) 0 clamp(46px, 8vw, 104px);
}

.page-contact .pc-hero::before {
  content: "";
  position: absolute;
  inset: auto -30% -55% auto;
  width: min(760px, 92vw);
  aspect-ratio: 1 / 1;
  background: radial-gradient(circle at 30% 30%, rgba(79, 179, 191, .5), transparent 65%);
  border-radius: 50%;
  pointer-events: none;
}

.page-contact .pc-hero::after {
  content: "";
  position: absolute;
  top: -16%;
  right: -18%;
  width: min(560px, 74vw);
  aspect-ratio: 1 / 1;
  background: var(--coral);
  opacity: .16;
  border-radius: 52% 48% 42% 58% / 46% 56% 44% 54%;
  transform: rotate(-14deg);
  pointer-events: none;
}

.page-contact .pc-hero .canvas {
  position: relative;
  z-index: 1;
}

.page-contact .pc-hero__grid {
  display: grid;
  gap: clamp(26px, 5vw, 52px);
  margin-top: clamp(24px, 4vw, 48px);
}

.page-contact .pc-hero__lead {
  max-width: 42ch;
}

.page-contact .pc-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(38px, 7.4vw, 76px);
  line-height: 1.02;
  letter-spacing: -.04em;
  color: var(--pearl);
}

.page-contact .pc-hero__title::after {
  content: "";
  display: block;
  width: 96px;
  height: 8px;
  margin-top: 22px;
  border-radius: var(--radius-pill);
  background: var(--coral);
}

.page-contact .pc-hero__text {
  margin: 26px 0 0;
  font-family: var(--font-body);
  font-size: clamp(16px, 1.7vw, 19px);
  line-height: 1.85;
  color: var(--pc-pearl-soft);
}

.page-contact .pc-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.page-contact .pc-hero__aside {
  align-self: start;
  padding: 24px 22px 26px;
  border-radius: var(--radius-lg);
  background: var(--pc-veil);
  border: 1px solid var(--pc-veil-line);
  backdrop-filter: blur(2px);
}

.page-contact .pc-hero__aside-label {
  margin: 0 0 16px;
  color: var(--lagoon);
}

.page-contact .pc-hero__facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-contact .pc-hero__facts li {
  display: grid;
  gap: 4px;
  padding-bottom: 16px;
  border-bottom: 1px dashed var(--pc-veil-line);
}

.page-contact .pc-hero__facts li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-contact .pc-hero__fact-num {
  font-family: var(--font-mono);
  font-size: clamp(20px, 2.6vw, 26px);
  font-weight: 700;
  color: var(--amber);
  letter-spacing: -.01em;
}

.page-contact .pc-hero__fact-txt {
  font-family: var(--font-body);
  font-size: var(--step-14);
  line-height: 1.7;
  color: var(--pc-pearl-soft);
}

.page-contact .pc-hero__aside-note {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--pc-veil-line);
  font-size: var(--step-14);
  line-height: 1.7;
  color: rgba(250, 247, 240, .62);
}

/* ---------- 联系通道 ---------- */
.page-contact .pc-channels {
  padding: clamp(48px, 8vw, 96px) 0 clamp(52px, 8vw, 100px);
}

.page-contact .pc-channels__body {
  margin-top: clamp(30px, 5vw, 46px);
  align-items: start;
}

.page-contact .pc-channels__list {
  display: grid;
  gap: 18px;
}

.page-contact .pc-line {
  position: relative;
  padding: 22px 22px 24px;
  border-radius: var(--radius-lg);
  background: #fff;
  border: 1px solid var(--mist);
  border-left: 6px solid var(--coral);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.page-contact .pc-line--lagoon { border-left-color: var(--lagoon); }
.page-contact .pc-line--palm { border-left-color: var(--palm); }

.page-contact .pc-line .mono-label {
  margin: 0;
  color: var(--pc-ink-soft);
}

.page-contact .pc-line__value {
  display: block;
  margin: 10px 0 12px;
  font-family: var(--font-mono);
  font-size: clamp(24px, 4.4vw, 38px);
  font-weight: 700;
  letter-spacing: -.03em;
  line-height: 1.15;
  color: var(--ink);
  text-decoration: none;
  overflow-wrap: anywhere;
  word-break: break-word;
  border-bottom: 2px solid transparent;
  transition: border-color .2s var(--ease-out), color .2s var(--ease-out);
}

.page-contact .pc-line__value--mail {
  font-size: clamp(18px, 3.4vw, 28px);
}

.page-contact .pc-line__value--plain {
  font-size: clamp(22px, 3.6vw, 32px);
}

.page-contact .pc-line__value:hover,
.page-contact .pc-line__value:focus-visible {
  color: var(--coral);
  border-bottom-color: var(--coral);
}

.page-contact .pc-line__text {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--step-16);
  line-height: 1.78;
  color: var(--pc-ink-soft);
}

.page-contact .pc-channels__figure {
  margin: 0;
}

.page-contact .pc-channels__next {
  margin-top: clamp(34px, 5vw, 54px);
  padding-top: 26px;
  border-top: 1px solid var(--mist);
  display: grid;
  gap: 16px;
}

.page-contact .pc-channels__next-txt {
  margin: 0;
  max-width: 60ch;
  font-size: var(--step-16);
  line-height: 1.8;
  color: var(--pc-ink-soft);
}

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

/* ---------- 商务合作 ---------- */
.page-contact .pc-coop {
  padding: clamp(48px, 8vw, 96px) 0 clamp(52px, 8vw, 100px);
}

.page-contact .pc-coop__seg {
  margin-top: clamp(28px, 4vw, 44px);
}

.page-contact .segmented__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 26px;
}

.page-contact .pc-coop__panel {
  position: relative;
  padding: clamp(22px, 3.6vw, 38px);
  border-radius: var(--radius-lg);
  background: var(--pearl);
  border: 1px solid rgba(75, 63, 114, .18);
  box-shadow: var(--shadow-soft);
}

.page-contact .pc-coop__panel::before {
  content: "";
  position: absolute;
  left: clamp(22px, 3.6vw, 38px);
  top: 0;
  width: 64px;
  height: 6px;
  border-radius: 0 0 var(--radius-pill) var(--radius-pill);
  background: var(--indigo);
}

.page-contact .pc-coop__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(21px, 3vw, 28px);
  line-height: 1.35;
  letter-spacing: -.02em;
  color: var(--ink);
}

.page-contact .pc-coop__text {
  margin: 14px 0 0;
  font-family: var(--font-body);
  font-size: var(--step-16);
  line-height: 1.82;
  color: var(--pc-ink-soft);
}

.page-contact .pc-coop__list {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-contact .pc-coop__list li {
  position: relative;
  padding-left: 22px;
  font-size: var(--step-16);
  line-height: 1.72;
  color: var(--ink);
}

.page-contact .pc-coop__list li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: .62em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--palm);
}

.page-contact .pc-coop__figure {
  margin: clamp(32px, 5vw, 52px) 0 0;
}

/* ---------- 到访与邮寄 ---------- */
.page-contact .pc-visit {
  padding: clamp(48px, 8vw, 96px) 0;
}

.page-contact .pc-visit__grid {
  align-items: start;
}

.page-contact .pc-visit__addr {
  display: block;
  margin: 6px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-style: normal;
  font-size: clamp(22px, 3.6vw, 34px);
  line-height: 1.42;
  letter-spacing: -.02em;
  color: var(--ink);
}

.page-contact .pc-visit__addr::after {
  content: "";
  display: block;
  width: 72px;
  height: 6px;
  margin-top: 20px;
  border-radius: var(--radius-pill);
  background: var(--lagoon);
}

.page-contact .pc-visit__text {
  margin: 24px 0 0;
  max-width: 56ch;
  font-family: var(--font-body);
  font-size: var(--step-16);
  line-height: 1.85;
  color: var(--pc-ink-soft);
}

.page-contact .pc-visit__card {
  padding: 24px 22px 26px;
  border-radius: var(--radius-lg);
  background: var(--pearl);
  border: 1px solid var(--mist);
}

.page-contact .pc-visit__card .mono-label {
  margin: 0;
  color: var(--palm);
}

.page-contact .pc-visit__dl {
  margin: 16px 0 0;
  display: grid;
  gap: 4px;
}

.page-contact .pc-visit__dl dt {
  font-family: var(--font-mono);
  font-size: var(--step-12);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: rgba(7, 26, 43, .5);
}

.page-contact .pc-visit__dl dd {
  margin: 0 0 12px;
  font-family: var(--font-body);
  font-size: var(--step-16);
  line-height: 1.6;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.page-contact .pc-visit__dl dd:last-child {
  margin-bottom: 0;
}

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

.page-contact .pc-visit__dl dd a:hover,
.page-contact .pc-visit__dl dd a:focus-visible {
  color: var(--coral);
  border-bottom-color: var(--coral);
}

/* ---------- 合作流程 ---------- */
.page-contact .pc-flow {
  padding: clamp(48px, 8vw, 96px) 0 clamp(52px, 8vw, 100px);
}

.page-contact .pc-flow .section-head__title,
.page-contact .pc-flow .section-head__note {
  color: var(--pearl);
}

.page-contact .pc-flow .section-head__note {
  color: var(--pc-pearl-soft);
}

.page-contact .pc-flow .section-head__index {
  color: var(--amber);
}

.page-contact .pc-steps {
  list-style: none;
  margin: clamp(30px, 5vw, 52px) 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-contact .pc-steps__item {
  position: relative;
  padding: 24px 22px 26px;
  border-radius: var(--radius-lg);
  background: var(--pc-veil);
  border: 1px solid var(--pc-veil-line);
  overflow: hidden;
}

.page-contact .pc-steps__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--coral), rgba(255, 107, 74, 0));
}

.page-contact .pc-steps__num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--step-14);
  font-weight: 700;
  letter-spacing: .16em;
  color: var(--coral);
}

.page-contact .pc-steps__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(19px, 2.4vw, 23px);
  line-height: 1.4;
  letter-spacing: -.01em;
  color: var(--pearl);
}

.page-contact .pc-steps__text {
  margin: 12px 0 0;
  font-family: var(--font-body);
  font-size: var(--step-16);
  line-height: 1.8;
  color: var(--pc-pearl-soft);
}

/* ---------- 常见联系问题 ---------- */
.page-contact .pc-faq {
  padding: clamp(48px, 8vw, 96px) 0 clamp(52px, 8vw, 100px);
}

.page-contact .pc-faq__list {
  margin-top: clamp(28px, 4vw, 42px);
  border-top: 1px solid var(--mist);
}

.page-contact .pc-faq__item {
  border-bottom: 1px solid var(--mist);
}

.page-contact .pc-faq__q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 20px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(17px, 2.2vw, 20px);
  line-height: 1.55;
  letter-spacing: -.01em;
  color: var(--ink);
  transition: color .2s var(--ease-out);
}

.page-contact .pc-faq__q::-webkit-details-marker {
  display: none;
}

.page-contact .pc-faq__q::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 22px;
  line-height: 1;
  color: var(--coral);
  transition: transform .2s var(--ease-out);
}

.page-contact .pc-faq__item[open] .pc-faq__q::after {
  content: "\2212";
  transform: rotate(180deg);
}

.page-contact .pc-faq__q:hover,
.page-contact .pc-faq__q:focus-visible {
  color: var(--coral);
}

.page-contact .pc-faq__a {
  padding: 0 0 22px;
}

.page-contact .pc-faq__a p {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--step-16);
  line-height: 1.85;
  color: var(--pc-ink-soft);
}

.page-contact .pc-faq__foot {
  margin-top: clamp(32px, 5vw, 52px);
  padding: 26px 22px 28px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(31, 138, 112, .12), rgba(79, 179, 191, .12));
  border: 1px solid rgba(31, 138, 112, .24);
  display: grid;
  gap: 18px;
}

.page-contact .pc-faq__foot p {
  margin: 0;
  max-width: 58ch;
  font-size: var(--step-16);
  line-height: 1.8;
  color: var(--ink);
}

/* ---------- 图片保护 ---------- */
.page-contact .figure-frame img {
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 断点 ---------- */
@media (min-width: 760px) {
  .page-contact .pc-channels__list {
    gap: 20px;
  }

  .page-contact .pc-channels__next {
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 24px;
  }

  .page-contact .pc-next {
    justify-content: flex-end;
  }

  .page-contact .pc-steps {
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
  }
}

@media (min-width: 1040px) {
  .page-contact .pc-hero__grid {
    grid-template-columns: 7fr 5fr;
    align-items: start;
    gap: clamp(36px, 5vw, 72px);
  }

  .page-contact .pc-hero__aside {
    margin-top: 34px;
  }

  .page-contact .pc-channels__body {
    grid-template-columns: 7fr 5fr;
    gap: clamp(30px, 4vw, 54px);
  }

  .page-contact .pc-coop__panel {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    column-gap: clamp(28px, 4vw, 56px);
    align-items: start;
  }

  .page-contact .pc-coop__title {
    grid-column: 1;
  }

  .page-contact .pc-coop__text {
    grid-column: 1;
  }

  .page-contact .pc-coop__list {
    grid-column: 2;
    grid-row: 1 / span 3;
    margin-top: 12px;
    padding-left: 28px;
    border-left: 1px solid rgba(75, 63, 114, .2);
  }

  .page-contact .pc-steps {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-contact .pc-visit__grid {
    grid-template-columns: 8fr 4fr;
    gap: clamp(30px, 4vw, 56px);
  }

  .page-contact .pc-visit__card {
    margin-top: 8px;
  }

  .page-contact .pc-faq__foot {
    grid-template-columns: 1fr auto;
    align-items: center;
    padding: 30px 30px 32px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-line__value,
  .page-contact .pc-faq__q,
  .page-contact .pc-faq__q::after,
  .page-contact .pc-visit__dl dd a {
    transition: none;
  }
}
<<<END>>>