.page-contact {
  --pc-cyan-soft: rgba(53, 240, 208, .14);
  --pc-orange-soft: rgba(255, 122, 47, .14);
  --pc-violet-soft: rgba(122, 92, 255, .14);
  --pc-glass: rgba(14, 26, 51, .72);
  --pc-hair: rgba(42, 59, 92, .7);

  display: block;
  background:
    radial-gradient(120% 80% at 88% -8%, rgba(53, 240, 208, .10), transparent 58%),
    radial-gradient(90% 70% at -12% 34%, rgba(122, 92, 255, .12), transparent 62%),
    var(--void);
  color: var(--warm);
  font-family: var(--font-sans);
  font-size: var(--step1);
  line-height: 1.75;
}

.page-contact .pc-block + .pc-block {
  border-top: 1px solid var(--pc-hair);
}

.page-contact .pc-mono,
.page-contact .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.page-contact .pc-h2 {
  margin: 0 0 14px;
  font-size: clamp(26px, 3.6vw, var(--step4));
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -.02em;
  color: var(--warm);
}

.page-contact .pc-lead {
  max-width: 68ch;
  margin: 0 0 8px;
  color: var(--muted);
  font-size: var(--step1);
}

/* ---------- Hero ---------- */
.page-contact .pc-hero {
  position: relative;
  padding: clamp(36px, 6vw, 76px) 0 clamp(40px, 7vw, 84px);
  overflow: hidden;
}

.page-contact .pc-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(42, 59, 92, .34) 1px, transparent 1px),
    linear-gradient(90deg, rgba(42, 59, 92, .34) 1px, transparent 1px);
  background-size: 112px 112px;
  -webkit-mask-image: radial-gradient(120% 104% at 72% 0%, #000 16%, transparent 76%);
  mask-image: radial-gradient(120% 104% at 72% 0%, #000 16%, transparent 76%);
}

.page-contact .pc-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(28px, 5vw, 56px);
  align-items: center;
}

.page-contact .pc-hero h1 {
  margin: 12px 0 18px;
  font-size: clamp(31px, 6vw, var(--step5));
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -.03em;
  color: var(--warm);
  max-width: 20ch;
}

.page-contact .pc-hero .lede {
  max-width: 60ch;
  color: var(--muted);
  font-size: clamp(15px, 1.5vw, var(--step2));
  line-height: 1.75;
}

.page-contact .pc-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 26px 0 0;
}

.page-contact .pc-hero__facts {
  list-style: none;
  margin: 32px 0 0;
  padding: 22px 0 0;
  border-top: 1px solid var(--pc-hair);
  display: grid;
  gap: 18px;
}

.page-contact .pc-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.page-contact .pc-hero__num {
  font-size: clamp(28px, 4vw, var(--step4));
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
  text-shadow: 0 0 26px var(--pc-cyan-soft);
}

.page-contact .pc-hero__facts li:nth-child(2) .pc-hero__num {
  color: var(--orange);
  text-shadow: 0 0 26px var(--pc-orange-soft);
}

.page-contact .pc-hero__facts li:nth-child(3) .pc-hero__num {
  color: var(--violet);
  text-shadow: 0 0 26px var(--pc-violet-soft);
}

.page-contact .pc-hero__fact-text {
  color: var(--muted);
  font-size: var(--step0);
}

.page-contact .pc-hero__media {
  position: relative;
  aspect-ratio: 3 / 2;
  border: 1px solid var(--pc-hair);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--night);
  box-shadow: 0 40px 90px -50px rgba(53, 240, 208, .55), 0 0 0 1px rgba(53, 240, 208, .08) inset;
}

.page-contact .pc-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6, 11, 24, .05) 0%, rgba(6, 11, 24, .55) 100%);
  pointer-events: none;
}

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

/* ---------- 合作方向 切换 ---------- */
.page-contact .coop-switch {
  margin-top: 30px;
}

.page-contact .coop-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
}

.page-contact .coop-tabs {
  display: grid;
  gap: 8px;
  border-bottom: 1px solid var(--pc-hair);
  padding-bottom: 14px;
}

.page-contact .coop-tab {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border: 1px solid var(--pc-hair);
  border-radius: var(--radius-sm);
  background: rgba(14, 26, 51, .55);
  color: var(--muted);
  font-size: var(--step0);
  font-weight: 700;
  cursor: pointer;
  transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease), transform .2s var(--ease);
}

.page-contact .coop-tab:hover {
  color: var(--warm);
  border-color: rgba(53, 240, 208, .45);
}

.page-contact .coop-tab__idx {
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: .12em;
  color: var(--cyan);
  opacity: .8;
}

.page-contact .coop-radio:focus-visible ~ .coop-tabs .coop-tab {
  outline: none;
}

.page-contact #coop-media:focus-visible ~ .coop-tabs .coop-tab[for="coop-media"],
.page-contact #coop-subscribe:focus-visible ~ .coop-tabs .coop-tab[for="coop-subscribe"],
.page-contact #coop-column:focus-visible ~ .coop-tabs .coop-tab[for="coop-column"],
.page-contact #coop-data:focus-visible ~ .coop-tabs .coop-tab[for="coop-data"] {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact #coop-media:checked ~ .coop-tabs .coop-tab[for="coop-media"],
.page-contact #coop-subscribe:checked ~ .coop-tabs .coop-tab[for="coop-subscribe"],
.page-contact #coop-column:checked ~ .coop-tabs .coop-tab[for="coop-column"],
.page-contact #coop-data:checked ~ .coop-tabs .coop-tab[for="coop-data"] {
  color: var(--void);
  background: linear-gradient(120deg, var(--cyan) 0%, #6ff5df 100%);
  border-color: var(--cyan);
  box-shadow: 0 18px 40px -24px rgba(53, 240, 208, .9);
}

.page-contact #coop-media:checked ~ .coop-tabs .coop-tab[for="coop-media"] .coop-tab__idx,
.page-contact #coop-subscribe:checked ~ .coop-tabs .coop-tab[for="coop-subscribe"] .coop-tab__idx,
.page-contact #coop-column:checked ~ .coop-tabs .coop-tab[for="coop-column"] .coop-tab__idx,
.page-contact #coop-data:checked ~ .coop-tabs .coop-tab[for="coop-data"] .coop-tab__idx {
  color: var(--void);
  opacity: .75;
}

.page-contact .coop-panels {
  margin-top: 24px;
}

.page-contact .coop-panel {
  display: none;
  gap: 18px;
  animation: pc-rise .32s var(--ease) both;
}

.page-contact #coop-media:checked ~ .coop-panels .coop-panel[data-panel="media"],
.page-contact #coop-subscribe:checked ~ .coop-panels .coop-panel[data-panel="subscribe"],
.page-contact #coop-column:checked ~ .coop-panels .coop-panel[data-panel="column"],
.page-contact #coop-data:checked ~ .coop-panels .coop-panel[data-panel="data"] {
  display: grid;
}

@keyframes pc-rise {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}

.page-contact .coop-panel__col {
  padding: 20px 18px;
  border-radius: var(--radius);
  border: 1px solid var(--pc-hair);
  background: var(--pc-glass);
  backdrop-filter: blur(8px);
}

.page-contact .coop-panel__col--who {
  border-left: 3px solid var(--cyan);
}

.page-contact .coop-panel__col--get {
  border-left: 3px solid var(--violet);
  background: rgba(11, 59, 58, .38);
}

.page-contact .coop-panel__col--note {
  border-left: 3px solid var(--orange);
}

.page-contact .coop-panel__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .coop-panel__text {
  margin: 0;
  color: var(--warm);
  font-size: var(--step0);
  line-height: 1.8;
}

.page-contact .coop-panel__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-contact .coop-panel__list li {
  position: relative;
  padding-left: 18px;
  color: var(--warm);
  font-size: var(--step0);
  line-height: 1.75;
}

.page-contact .coop-panel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 8px;
  height: 2px;
  background: var(--cyan);
}

/* ---------- 流程 ---------- */
.page-contact .pc-flow {
  position: relative;
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .pc-flow__step {
  position: relative;
}

.page-contact .pc-step {
  height: 100%;
  border: 1px solid var(--pc-hair);
  border-radius: var(--radius);
  background: rgba(14, 26, 51, .6);
  padding: 16px;
  transition: border-color .2s var(--ease), background .2s var(--ease);
}

.page-contact .pc-step[open] {
  border-color: rgba(53, 240, 208, .5);
  background: rgba(14, 26, 51, .9);
}

.page-contact .pc-step__summary {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  list-style: none;
}

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

.page-contact .pc-step__idx {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: var(--void);
  border: 2px solid var(--orange);
  color: var(--orange);
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
}

.page-contact .pc-step__name {
  font-size: var(--step2);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--warm);
}

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

.page-contact .pc-step__body p {
  margin: 0;
  color: var(--muted);
  font-size: var(--step0);
  line-height: 1.8;
}

.page-contact .pc-step__meta {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .pc-step__meta li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: var(--step-1);
  color: var(--warm);
  border-bottom: 1px solid rgba(42, 59, 92, .5);
  padding-bottom: 6px;
}

.page-contact .pc-step__meta-label {
  font-family: var(--font-mono);
  letter-spacing: .1em;
  color: var(--muted);
}

/* ---------- 准备材料 ---------- */
.page-contact .pc-materials__grid {
  display: grid;
  gap: 30px;
}

.page-contact .pc-materials__intro .pc-h2 {
  margin-top: 6px;
}

.page-contact .pc-materials__hint {
  margin: 16px 0 0;
  padding-left: 14px;
  border-left: 3px solid var(--cyan);
  color: var(--muted);
  font-size: var(--step0);
}

.page-contact .pc-materials__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .pc-materials__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 16px 16px 16px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--pc-hair);
  background: linear-gradient(90deg, rgba(11, 59, 58, .5) 0%, rgba(14, 26, 51, .5) 42%);
}

.page-contact .pc-materials__idx {
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: .1em;
  color: var(--cyan);
  padding-top: 3px;
}

.page-contact .pc-materials__name {
  margin: 0 0 4px;
  font-size: var(--step1);
  font-weight: 800;
  color: var(--warm);
}

.page-contact .pc-materials__desc {
  margin: 0;
  color: var(--muted);
  font-size: var(--step0);
  line-height: 1.75;
}

/* ---------- 场景 ---------- */
.page-contact .pc-scenes {
  margin-top: 28px;
}

.page-contact .pc-scene {
  padding: 22px 20px;
  border-radius: var(--radius);
  border: 1px solid var(--pc-hair);
  background: rgba(14, 26, 51, .62);
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: transform .25s var(--ease), border-color .25s var(--ease);
}

.page-contact .pc-scene:hover {
  transform: translateY(-4px);
  border-color: rgba(53, 240, 208, .45);
}

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

.page-contact .pc-scene__title {
  margin: 0;
  font-size: var(--step2);
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: -.01em;
  color: var(--warm);
}

.page-contact .pc-scene__body {
  margin: 0;
  color: var(--muted);
  font-size: var(--step0);
  line-height: 1.8;
}

.page-contact .pc-scene__meta {
  margin: auto 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--pc-hair);
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: .04em;
  color: var(--cyan);
}

.page-contact .pc-scenes__more {
  margin: 26px 0 0;
  max-width: 68ch;
  color: var(--muted);
  font-size: var(--step0);
}

.page-contact .pc-scenes__more a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 240, 208, .45);
}

.page-contact .pc-scenes__more a:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 反馈 ---------- */
.page-contact .pc-feedback__panel {
  display: grid;
  gap: 26px;
  padding: clamp(22px, 3vw, 34px);
  border-radius: var(--radius);
  border: 1px solid var(--pc-hair);
  background:
    linear-gradient(135deg, rgba(122, 92, 255, .16) 0%, rgba(6, 11, 24, 0) 46%),
    rgba(14, 26, 51, .7);
}

.page-contact .pc-feedback__copy p {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: var(--step0);
  line-height: 1.8;
}

.page-contact .pc-feedback__mail {
  color: var(--warm) !important;
}

.page-contact .pc-feedback__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .pc-feedback__list ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .pc-feedback__list li {
  font-size: var(--step0);
  color: var(--muted);
  line-height: 1.75;
  padding-left: 16px;
  position: relative;
}

.page-contact .pc-feedback__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--violet);
}

.page-contact .pc-feedback__k {
  display: inline-block;
  margin-right: 8px;
  color: var(--warm);
  font-weight: 700;
}

.page-contact .pc-feedback__note {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: var(--step-1);
  line-height: 1.8;
}

.page-contact .pc-feedback__note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 240, 208, .45);
}

/* ---------- 联系方式 ---------- */
.page-contact .pc-contact__grid {
  display: grid;
  gap: 22px;
  margin-top: 28px;
  align-items: stretch;
}

.page-contact .pc-contact__card {
  padding: 24px 20px;
  border: 1px solid rgba(53, 240, 208, .42);
  border-radius: var(--radius);
  background: var(--pc-glass);
  backdrop-filter: blur(10px);
  box-shadow: 0 40px 80px -56px rgba(53, 240, 208, .8);
}

.page-contact .pc-contact__value {
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.6vw, var(--step2));
  word-break: break-word;
  letter-spacing: -.01em;
  color: var(--cyan);
}

.page-contact .pc-contact__media {
  position: relative;
  min-height: 220px;
  aspect-ratio: 10 / 7;
  border-radius: var(--radius);
  border: 1px solid var(--pc-hair);
  overflow: hidden;
  background: var(--night);
}

.page-contact .pc-contact__media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  opacity: .78;
}

/* ---------- FAQ ---------- */
.page-contact .pc-faq {
  margin-top: 26px;
  border-top: 1px solid var(--pc-hair);
}

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

.page-contact .pc-faq__q {
  position: relative;
  display: block;
  padding: 18px 44px 18px 0;
  cursor: pointer;
  list-style: none;
  font-size: var(--step1);
  font-weight: 700;
  color: var(--warm);
  transition: color .2s var(--ease);
}

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

.page-contact .pc-faq__q::after {
  content: "＋";
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: var(--step2);
  line-height: 1;
  color: var(--cyan);
}

.page-contact .pc-faq__item[open] .pc-faq__q {
  color: var(--cyan);
}

.page-contact .pc-faq__item[open] .pc-faq__q::after {
  content: "－";
}

.page-contact .pc-faq__q:hover {
  color: var(--cyan);
}

.page-contact .pc-faq__a {
  padding: 0 0 20px;
}

.page-contact .pc-faq__a p {
  margin: 0;
  max-width: 72ch;
  color: var(--muted);
  font-size: var(--step0);
  line-height: 1.85;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-contact .pc-hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }

  .page-contact .pc-hero__facts li {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

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

  .page-contact .coop-panel {
    grid-template-columns: minmax(0, 1fr);
  }

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

  .page-contact .pc-feedback__panel {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    gap: 32px;
  }
}

@media (min-width: 960px) {
  .page-contact .pc-hero__inner {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    gap: clamp(36px, 5vw, 72px);
  }

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

  .page-contact .coop-panel {
    grid-template-columns: minmax(0, .9fr) minmax(0, 1.35fr) minmax(0, .9fr);
    gap: 16px;
    align-items: start;
  }

  .page-contact .pc-flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
    margin-top: 42px;
  }

  .page-contact .pc-flow::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 26px;
    height: 2px;
    background: linear-gradient(90deg, var(--orange) 0%, rgba(255, 122, 47, .5) 52%, rgba(53, 240, 208, .55) 100%);
    opacity: .75;
    pointer-events: none;
  }

  .page-contact .pc-flow__step {
    padding-right: 18px;
  }

  .page-contact .pc-flow__step:last-child {
    padding-right: 0;
  }

  .page-contact .pc-step {
    padding: 18px 16px;
  }

  .page-contact .pc-step__summary {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }

  .page-contact .pc-step__name {
    font-size: var(--step1);
  }

  .page-contact .pc-feedback__list {
    padding-left: 8px;
    border-left: 1px solid var(--pc-hair);
  }

  .page-contact .pc-contact__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    gap: 26px;
  }

  .page-contact .pc-contact__media {
    aspect-ratio: auto;
    min-height: 100%;
  }

  .page-contact .pc-materials__grid {
    grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
    gap: 48px;
    align-items: start;
  }
}

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

  .page-contact .pc-scene,
  .page-contact .coop-tab {
    transition: none;
  }

  .page-contact .pc-scene:hover {
    transform: none;
  }
}