.page-contact {
  --pc-edge: 3px;
  --pc-pad: clamp(1.25rem, 3.2vw, 2rem);
  --pc-radius: 22px;
  background: var(--yw-white);
  color: var(--yw-deep);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  position: relative;
  padding-block: clamp(1.75rem, 4vw, 3rem) clamp(2.5rem, 6vw, 4.5rem);
  overflow: hidden;
}

.page-contact .pc-hero::before {
  content: "";
  position: absolute;
  top: -10vw;
  right: -10vw;
  width: 34vw;
  height: 34vw;
  background: repeating-linear-gradient(-45deg, rgba(255, 106, 26, 0.16) 0 10px, transparent 10px 24px);
  transform: rotate(9deg);
  pointer-events: none;
}

.page-contact .pc-hero__body {
  display: grid;
  gap: clamp(1.75rem, 4vw, 2.75rem);
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
  align-items: end;
}

.page-contact .pc-hero__title {
  margin: 0.6rem 0 1.1rem;
  font-size: clamp(2.15rem, 7.4vw, 4.9rem);
  font-weight: 200;
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--yw-deep);
}

.page-contact .pc-hero__title span {
  display: block;
  font-weight: 300;
  color: var(--yw-orange);
}

.page-contact .pc-hero__lede {
  max-width: 56ch;
  margin: 0;
}

.page-contact .pc-kicker {
  margin: 0;
  font-family: var(--yw-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--yw-blue);
}

.page-contact .pc-kicker--alt {
  color: var(--yw-cyan);
}

/* ---------- 快速跳转 ---------- */
.page-contact .pc-jump {
  border: var(--pc-edge) solid var(--yw-deep);
  border-radius: var(--pc-radius);
  background: var(--yw-paper);
  padding: var(--pc-pad);
  box-shadow: var(--yw-shadow);
}

.page-contact .pc-jump__title {
  margin: 0 0 0.9rem;
  font-family: var(--yw-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--yw-slate);
}

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

.page-contact .pc-jump__list a {
  display: block;
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  border: 2px solid var(--yw-deep);
  background: var(--yw-white);
  color: var(--yw-deep);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  transition: transform var(--yw-dur) var(--yw-ease), background var(--yw-dur) var(--yw-ease), color var(--yw-dur) var(--yw-ease);
}

.page-contact .pc-jump__list a:hover,
.page-contact .pc-jump__list a:focus-visible {
  transform: translate(2px, -3px);
  background: var(--yw-orange);
  color: var(--yw-white);
}

/* ---------- 通用小节头 ---------- */
.page-contact .pc-sechead {
  max-width: 62ch;
  margin-bottom: clamp(1.5rem, 4vw, 2.5rem);
}

.page-contact .pc-sechead .yw-title {
  margin: 0.6rem 0 0.9rem;
}

.page-contact .pc-sechead--alt .pc-title--alt {
  color: var(--yw-white);
}

/* ---------- 联系方式墙 ---------- */
.page-contact .pc-wall {
  display: grid;
  gap: 1.35rem;
}

.page-contact .pc-channel {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  padding: var(--pc-pad);
  border-width: var(--pc-edge);
  border-radius: var(--pc-radius);
}

.page-contact .pc-channel__label {
  margin: 0;
  font-family: var(--yw-mono);
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  color: var(--yw-slate);
}

.page-contact .pc-channel__value {
  margin: 0;
  font-family: var(--yw-mono);
  font-size: clamp(0.95rem, 4.4vw, 1.32rem);
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.01em;
  color: var(--yw-deep);
  overflow-wrap: anywhere;
  word-break: break-word;
  -webkit-user-select: all;
  user-select: all;
}

.page-contact .pc-channel__value--addr {
  font-size: clamp(0.92rem, 3.6vw, 1.12rem);
  letter-spacing: 0.02em;
}

.page-contact .pc-channel__note {
  margin: 0;
  font-size: 0.96rem;
  line-height: 1.75;
  color: var(--yw-blue);
}

.page-contact .pc-channel__hint {
  margin: auto 0 0;
  padding-top: 0.6rem;
  font-family: var(--yw-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--yw-slate);
}

.page-contact .pc-channel--mail {
  border-color: var(--yw-orange);
  background: linear-gradient(180deg, var(--yw-white) 0%, var(--yw-paper) 100%);
}

.page-contact .pc-channel--tel {
  border-color: var(--yw-cyan);
}

.page-contact .pc-channel--addr {
  border-color: var(--yw-purple);
}

/* ---------- 反馈类型 ---------- */
.page-contact .pc-tabs {
  border: var(--pc-edge) solid var(--yw-deep);
  border-radius: var(--pc-radius);
  background: var(--yw-white);
  overflow: hidden;
}

.page-contact .pc-tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0.85rem;
  background: var(--yw-deep);
}

.page-contact .pc-tab {
  appearance: none;
  border: 2px solid rgba(246, 242, 230, 0.34);
  background: transparent;
  color: var(--yw-white);
  border-radius: 999px;
  padding: 0.5rem 1rem;
  font-family: inherit;
  font-size: 0.92rem;
  font-weight: 600;
  line-height: 1.3;
  cursor: pointer;
  transition: background var(--yw-dur) var(--yw-ease), color var(--yw-dur) var(--yw-ease), border-color var(--yw-dur) var(--yw-ease);
}

.page-contact .pc-tab:hover {
  border-color: var(--yw-cyan);
  color: var(--yw-cyan);
}

.page-contact .pc-tab[aria-selected="true"] {
  background: var(--yw-orange);
  border-color: var(--yw-orange);
  color: var(--yw-deep);
}

.page-contact .pc-panel {
  padding: clamp(1.25rem, 3.2vw, 2rem);
  border-top: var(--pc-edge) solid var(--yw-deep);
}

.page-contact .pc-panel[hidden] {
  display: none;
}

.page-contact .pc-panel__title {
  margin: 0 0 1rem;
  font-size: clamp(1.1rem, 2.6vw, 1.4rem);
  font-weight: 800;
  color: var(--yw-deep);
  text-shadow: 3px 3px 0 rgba(18, 60, 116, 0.18);
}

.page-contact .pc-spec {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.85rem;
  max-width: 68ch;
}

.page-contact .pc-spec li {
  position: relative;
  padding-left: 1.4rem;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--yw-deep);
}

.page-contact .pc-spec li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 3px;
  background: var(--yw-cyan);
  transform: rotate(45deg);
}

.page-contact .pc-spec strong {
  font-weight: 800;
  box-shadow: inset 0 -2px 0 var(--yw-yellow);
}

.page-contact .pc-panel__tail {
  margin: 1.1rem 0 0;
  padding-top: 0.9rem;
  border-top: 2px dashed rgba(108, 126, 153, 0.55);
  font-size: 0.94rem;
  line-height: 1.7;
  color: var(--yw-blue);
  max-width: 68ch;
}

.page-contact .pc-panel__tail a,
.page-contact .pc-routing__foot a,
.page-contact .pc-timing__foot a {
  color: var(--yw-blue);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.page-contact .pc-panel__tail a:hover,
.page-contact .pc-routing__foot a:hover,
.page-contact .pc-timing__foot a:hover {
  color: var(--yw-orange);
}

.page-contact .pc-routing__foot {
  margin: 1.5rem 0 0;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--yw-slate);
}

/* ---------- 合作与投稿 ---------- */
.page-contact .pc-coop__grid {
  display: grid;
  gap: 1.25rem;
}

.page-contact .pc-coop__item {
  padding: var(--pc-pad);
  border: var(--pc-edge) solid rgba(246, 242, 230, 0.4);
  border-radius: 10px;
  background: rgba(246, 242, 230, 0.06);
}

.page-contact .pc-coop__num {
  margin: 0 0 0.7rem;
  display: inline-block;
  padding: 0.2rem 0.6rem;
  background: var(--yw-cyan);
  color: var(--yw-deep);
  border-radius: 4px;
  font-family: var(--yw-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
}

.page-contact .pc-coop__name {
  margin: 0 0 0.7rem;
  font-size: clamp(1.15rem, 2.6vw, 1.5rem);
  font-weight: 800;
  color: var(--yw-white);
}

.page-contact .pc-coop__item p {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.78;
  color: rgba(246, 242, 230, 0.86);
}

.page-contact .pc-coop__item--wide {
  border-color: var(--yw-orange);
  background: rgba(255, 106, 26, 0.1);
}

.page-contact .pc-checklist {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.6rem;
}

.page-contact .pc-checklist li {
  position: relative;
  padding-left: 1.6rem;
  font-size: 0.98rem;
  line-height: 1.7;
  color: rgba(246, 242, 230, 0.9);
}

.page-contact .pc-checklist li::before {
  content: "▸";
  position: absolute;
  left: 0.2rem;
  top: 0;
  color: var(--yw-yellow);
  font-size: 0.9rem;
}

/* ---------- 地址与备案 ---------- */
.page-contact .pc-addr__grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
  align-items: center;
}

.page-contact .pc-addr__list {
  margin: 1.25rem 0 1.25rem;
  display: grid;
  gap: 0.85rem;
}

.page-contact .pc-addr__row {
  display: grid;
  gap: 0.3rem;
  padding: 0.85rem 0 0.85rem 1rem;
  border-left: 4px solid var(--yw-cyan);
  background: var(--yw-paper);
  border-radius: 0 10px 10px 0;
}

.page-contact .pc-addr__row dt {
  font-family: var(--yw-mono);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  color: var(--yw-slate);
}

.page-contact .pc-addr__row dd {
  margin: 0;
  font-size: clamp(0.95rem, 2.4vw, 1.05rem);
  font-weight: 600;
  line-height: 1.6;
  color: var(--yw-deep);
  overflow-wrap: anywhere;
}

.page-contact .pc-icp {
  display: inline-block;
  margin: 0 0 1rem;
  padding: 0.55rem 0.95rem;
  border: 2px dashed var(--yw-deep);
  border-radius: 8px;
  background: var(--yw-white);
  font-family: var(--yw-mono);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  color: var(--yw-deep);
}

.page-contact .pc-addr__note {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--yw-slate);
  max-width: 56ch;
}

/* ---------- 回复时效 ---------- */
.page-contact .pc-timing__grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 2.75rem);
}

.page-contact .pc-flow {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1rem;
  align-content: start;
}

.page-contact .pc-flow__step {
  position: relative;
  padding: 1.15rem 1.2rem 1.15rem 4.2rem;
  border: 2px solid rgba(18, 60, 116, 0.28);
  border-radius: 12px;
  background: var(--yw-white);
}

.page-contact .pc-flow__num {
  position: absolute;
  left: 1.1rem;
  top: 1.15rem;
  font-family: var(--yw-mono);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--yw-orange);
}

.page-contact .pc-flow__name {
  margin: 0 0 0.45rem;
  font-size: 1.12rem;
  font-weight: 800;
  color: var(--yw-deep);
}

.page-contact .pc-flow__step p {
  margin: 0;
  font-size: 0.96rem;
  line-height: 1.75;
  color: var(--yw-blue);
}

.page-contact .pc-timing__foot {
  margin-top: clamp(1.75rem, 4vw, 2.5rem);
  padding: clamp(1.25rem, 3vw, 1.75rem);
  border-radius: 18px;
  background: var(--yw-paper);
  border: 2px solid var(--yw-deep);
  display: grid;
  gap: 1rem;
  align-items: center;
}

.page-contact .pc-timing__foot p {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.75;
  color: var(--yw-deep);
}

.page-contact .pc-timing__foot .yw-btn {
  justify-self: start;
  text-decoration: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .pc-wall {
    grid-template-columns: repeat(12, 1fr);
    align-items: start;
  }

  .page-contact .pc-channel--mail {
    grid-column: 1 / 8;
    grid-row: 1 / span 2;
  }

  .page-contact .pc-channel--tel {
    grid-column: 8 / 13;
    grid-row: 1;
    margin-top: 2.25rem;
  }

  .page-contact .pc-channel--addr {
    grid-column: 8 / 13;
    grid-row: 2;
    margin-top: 1.25rem;
  }

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

  .page-contact .pc-coop__item--wide {
    grid-column: 1 / -1;
  }

  .page-contact .pc-timing__foot {
    grid-template-columns: minmax(0, 1fr) auto;
  }
}

@media (min-width: 900px) {
  .page-contact .pc-hero__body {
    grid-template-columns: minmax(0, 1.55fr) minmax(255px, 0.72fr);
    gap: clamp(2rem, 5vw, 4rem);
  }

  .page-contact .pc-addr__grid {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  }

  .page-contact .pc-timing__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }
}

@media (min-width: 1080px) {
  .page-contact .pc-channel--mail {
    grid-column: 1 / 7;
  }

  .page-contact .pc-channel--tel {
    grid-column: 7 / 12;
    margin-top: 3.5rem;
  }

  .page-contact .pc-channel--addr {
    grid-column: 5 / 12;
    margin-top: 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-jump__list a,
  .page-contact .pc-tab {
    transition: none;
  }

  .page-contact .pc-jump__list a:hover,
  .page-contact .pc-jump__list a:focus-visible {
    transform: none;
  }
}

.page-contact a:focus-visible,
.page-contact button:focus-visible {
  outline: 2px solid var(--yw-orange);
  outline-offset: 3px;
}