.page-contact {
  --pc-line: rgba(53, 242, 192, 0.26);
  --pc-line-soft: rgba(126, 155, 147, 0.2);
  --pc-card: rgba(27, 42, 51, 0.72);
  --pc-text: rgba(232, 241, 238, 0.84);
  color: var(--mist);
}

.page-contact .section {
  padding-block: clamp(2.25rem, 5vw, 4.5rem);
}

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

.page-contact .pc-hero__copy,
.page-contact .pc-hero__media,
.page-contact .pc-pane,
.page-contact .pc-desk__card {
  min-width: 0;
}

/* ---------- 首屏横幅 ---------- */
.pc-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--pc-line-soft);
  background:
    radial-gradient(120% 90% at 10% 0%, rgba(53, 242, 192, 0.12), transparent 62%),
    linear-gradient(180deg, var(--forest), var(--ink) 82%);
}

.pc-hero::after {
  content: "";
  position: absolute;
  inset: -20% -12% -30% auto;
  width: 58%;
  background: repeating-linear-gradient(105deg, rgba(53, 242, 192, 0.07) 0 1px, transparent 1px 28px);
  pointer-events: none;
}

.pc-hero__inner {
  position: relative;
  z-index: 1;
  padding-block: clamp(1.15rem, 3vw, 2rem) clamp(2rem, 5vw, 3.5rem);
}

.pc-hero__grid {
  display: grid;
  gap: clamp(1.25rem, 3vw, 2.5rem);
}

.pc-eyebrow {
  margin: 1.4rem 0 0;
  font-size: 0.75rem;
  letter-spacing: 0.24em;
  color: var(--cyan);
}

.page-contact .pc-hero h1 {
  margin: 0.7rem 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 8.4vw, 4.4rem);
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: #fff;
}

.pc-hero__lede {
  margin: 1.1rem 0 0;
  max-width: 54ch;
  font-size: clamp(0.98rem, 2.2vw, 1.08rem);
  line-height: 1.8;
  color: var(--pc-text);
}

.pc-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.5rem;
}

.pc-hero__media {
  margin: 1.6rem 0 0;
}

.pc-facts {
  list-style: none;
  margin: clamp(1.75rem, 4vw, 2.75rem) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--pc-line-soft);
  clip-path: var(--cut-sm);
}

.pc-facts li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem;
  padding: 1rem 1.1rem;
  background: var(--ink);
}

.pc-facts__num {
  font-size: clamp(1.6rem, 4.2vw, 2.2rem);
  line-height: 1;
  color: var(--amber);
}

.pc-facts__unit {
  font-size: 0.85rem;
  color: var(--amber);
}

.pc-facts__label {
  flex: 1 1 100%;
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--sage);
}

/* ---------- 三条通道 ---------- */
.pc-head {
  max-width: 62ch;
}

.pc-head h2 {
  margin: 0 0 0.7rem;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4.4vw, 2.6rem);
  line-height: 1.15;
  letter-spacing: 0.01em;
  color: var(--mist);
}

.pc-head p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.78;
  color: var(--pc-text);
}

.pc-switch {
  position: relative;
  margin-top: clamp(1.4rem, 3.4vw, 2.4rem);
}

.pc-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.pc-switch__body {
  display: grid;
  gap: var(--gap);
}

.pc-tabs {
  display: grid;
  gap: 0.6rem;
  align-content: start;
}

.pc-tab {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.75rem;
  padding: 0.9rem 1rem;
  background: var(--pc-card);
  border-left: 3px solid var(--pc-line-soft);
  clip-path: var(--cut-sm);
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.pc-tab__num {
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  color: var(--amber);
  padding-top: 0.15rem;
}

.pc-tab__text {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-width: 0;
}

.pc-tab__text strong {
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: 0.03em;
  color: var(--mist);
}

.pc-tab__text em {
  font-style: normal;
  font-size: 0.79rem;
  line-height: 1.5;
  color: var(--sage);
}

#pc-ch-fix:checked ~ .pc-switch__body .pc-tab[for="pc-ch-fix"],
#pc-ch-club:checked ~ .pc-switch__body .pc-tab[for="pc-ch-club"],
#pc-ch-collab:checked ~ .pc-switch__body .pc-tab[for="pc-ch-collab"] {
  background: linear-gradient(180deg, rgba(53, 242, 192, 0.16), rgba(27, 42, 51, 0.85));
  border-left-color: var(--cyan);
}

#pc-ch-fix:focus-visible ~ .pc-switch__body .pc-tab[for="pc-ch-fix"],
#pc-ch-club:focus-visible ~ .pc-switch__body .pc-tab[for="pc-ch-club"],
#pc-ch-collab:focus-visible ~ .pc-switch__body .pc-tab[for="pc-ch-collab"] {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.pc-tab:hover {
  border-left-color: var(--amber);
}

.pc-pane {
  display: none;
  padding: clamp(1.2rem, 3vw, 2.25rem);
  background: linear-gradient(165deg, rgba(27, 42, 51, 0.92), rgba(16, 22, 26, 0.94));
  clip-path: var(--cut-lg);
}

#pc-ch-fix:checked ~ .pc-switch__body .pc-pane--fix,
#pc-ch-club:checked ~ .pc-switch__body .pc-pane--club,
#pc-ch-collab:checked ~ .pc-switch__body .pc-pane--collab {
  display: block;
}

.page-contact .pc-pane h3 {
  margin: 0 0 0.6rem;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3.4vw, 1.95rem);
  letter-spacing: 0.01em;
  color: #fff;
}

.pc-pane__lede {
  margin: 0;
  max-width: 60ch;
  font-size: 0.94rem;
  line-height: 1.82;
  color: var(--pc-text);
}

.pc-pane__cols {
  display: grid;
  gap: clamp(1rem, 2.4vw, 1.9rem);
  margin-top: 1.3rem;
}

.pc-mini {
  margin: 0 0 0.65rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.pc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.pc-list li {
  position: relative;
  padding-left: 1.15rem;
  font-size: 0.92rem;
  line-height: 1.68;
  color: var(--pc-text);
}

.pc-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.66em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--amber);
}

.pc-list--check li::before {
  top: 0.78em;
  width: 9px;
  height: 2px;
  border-radius: 0;
  background: var(--cyan);
}

.pc-pane__media {
  margin: 1.3rem 0 0;
}

.pc-mailhint {
  margin: 1.4rem 0 0;
  padding-left: 0.9rem;
  border-left: 2px solid var(--amber);
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--mist);
}

.pc-mailhint .mono {
  margin-right: 0.45rem;
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  color: var(--amber);
}

.pc-pane__foot {
  margin: 1rem 0 0;
  font-size: 0.85rem;
  line-height: 1.72;
  color: var(--sage);
}

/* ---------- 材料提交 ---------- */
.pc-send__panel {
  padding: clamp(1.35rem, 4vw, 3rem);
  background: linear-gradient(160deg, var(--forest), var(--ink) 72%);
  clip-path: var(--cut-lg);
  border-top: 1px solid var(--pc-line);
}

.pc-form {
  display: grid;
  gap: 0.9rem;
  margin-top: clamp(1.2rem, 3vw, 1.9rem);
}

.pc-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  min-width: 0;
}

.pc-field label {
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--sage);
}

.pc-field input,
.pc-field select,
.pc-field textarea {
  width: 100%;
  max-width: 100%;
  padding: 0.75rem 0.9rem;
  font: inherit;
  font-size: 0.92rem;
  color: var(--mist);
  background: rgba(16, 22, 26, 0.85);
  border: 1px solid var(--pc-line-soft);
  border-radius: 0;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.pc-field textarea {
  min-height: 7rem;
  resize: vertical;
  line-height: 1.7;
}

.pc-field select {
  appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--cyan) 50%),
    linear-gradient(135deg, var(--cyan) 50%, transparent 50%);
  background-position: calc(100% - 20px) 55%, calc(100% - 15px) 55%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}

.pc-field input::placeholder,
.pc-field textarea::placeholder {
  color: rgba(126, 155, 147, 0.75);
}

.pc-field input:focus,
.pc-field select:focus,
.pc-field textarea:focus {
  outline: none;
  border-color: var(--cyan);
  box-shadow: 0 0 0 1px var(--cyan);
}

.pc-field input:not(:placeholder-shown):invalid {
  border-color: var(--alert);
}

.pc-form__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.9rem 1.4rem;
  margin-top: 0.4rem;
  padding-top: 1.15rem;
  border-top: 1px solid var(--pc-line-soft);
}

.pc-form__foot .note {
  flex: 1 1 260px;
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--sage);
}

/* ---------- 客服渠道 ---------- */
.pc-desk__grid {
  display: grid;
  gap: var(--gap);
  margin-top: clamp(1.25rem, 3vw, 2rem);
}

.pc-desk__card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: clamp(1.1rem, 2.5vw, 1.7rem);
  background: var(--ink);
  clip-path: var(--cut-sm);
}

.pc-desk__card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--cyan);
}

.pc-desk__icon {
  width: 26px;
  height: 26px;
  stroke: var(--cyan);
  fill: none;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.page-contact .pc-desk__card h3 {
  margin: 0.25rem 0 0;
  font-family: var(--font-display);
  font-size: 1.08rem;
  letter-spacing: 0.05em;
  color: var(--mist);
}

.pc-desk__value {
  margin: 0;
  font-size: clamp(0.98rem, 2.4vw, 1.12rem);
  line-height: 1.5;
  color: var(--amber);
  overflow-wrap: anywhere;
}

.page-contact .pc-desk__card p {
  margin: 0;
  font-size: 0.87rem;
  line-height: 1.72;
  color: var(--pc-text);
}

/* ---------- 常见问题 ---------- */
.pc-faq__list {
  margin-top: clamp(1.1rem, 2.6vw, 1.8rem);
  border-top: 1px solid var(--pc-line-soft);
}

.pc-faq details {
  border-bottom: 1px solid var(--pc-line-soft);
}

.pc-faq summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.05rem 0.2rem;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--mist);
  cursor: pointer;
  list-style: none;
}

.pc-faq summary::-webkit-details-marker {
  display: none;
}

.pc-faq summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  line-height: 1;
  color: var(--cyan);
}

.pc-faq details[open] summary::after {
  content: "–";
}

.pc-faq details p {
  margin: 0 0 1.15rem;
  max-width: 68ch;
  padding-right: 1.8rem;
  font-size: 0.91rem;
  line-height: 1.8;
  color: var(--pc-text);
}

/* ---------- 延伸入口 ---------- */
.pc-next__links {
  list-style: none;
  margin: clamp(1.1rem, 2.6vw, 1.8rem) 0 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.pc-next__links a {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.6rem;
  padding: 1rem 1.1rem;
  background: var(--pc-card);
  border-left: 3px solid transparent;
  clip-path: var(--cut-sm);
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--pc-text);
  text-decoration: none;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.pc-next__links a:hover {
  border-left-color: var(--cyan);
  background: rgba(53, 242, 192, 0.08);
}

.pc-next__links span {
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.04em;
  color: var(--mist);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .pc-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .pc-pane__cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .pc-form {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .pc-field--full,
  .pc-form__foot {
    grid-column: 1 / -1;
  }
}

@media (min-width: 900px) {
  .pc-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
  }

  .pc-hero__media {
    margin: 0;
    align-self: stretch;
  }

  .pc-switch__body {
    grid-template-columns: minmax(220px, 280px) minmax(0, 1fr);
    gap: clamp(1rem, 2vw, 2rem);
    align-items: start;
  }

  .pc-desk__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .pc-next__links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact * {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}
</main>