.page-contact {
  --pc-aside: 340px;
  --pc-card-bg: rgba(7, 19, 34, 0.62);
  --pc-tint-cyan: rgba(53, 224, 214, 0.08);
  --pc-tint-cyan-strong: rgba(53, 224, 214, 0.16);
  padding-bottom: var(--sp-6);
}

/* ---------- 首屏 ---------- */

.page-contact .pc-hero {
  padding: var(--sp-5) 0 var(--sp-4);
  border-bottom: 1px solid var(--c-line);
}

.page-contact .pc-hero .eyebrow {
  margin: 0 0 var(--sp-3);
}

.page-contact .pc-hero__title {
  margin: 0 0 var(--sp-3);
  font-family: var(--f-head);
  font-size: clamp(38px, 10vw, 82px);
  font-weight: 800;
  line-height: 0.97;
  letter-spacing: -0.02em;
  color: var(--c-bone);
}

.page-contact .pc-hero__lead {
  max-width: 56ch;
  margin: 0 0 var(--sp-4);
  font-size: 17px;
  line-height: 1.7;
  color: var(--c-bone);
}

.page-contact .pc-hero__meta {
  display: inline-flex;
  align-items: baseline;
  gap: var(--sp-2);
  margin: 0;
  padding: 9px 14px;
  border-left: 2px solid var(--c-orange);
  background: rgba(255, 107, 44, 0.09);
}

.page-contact .pc-hero__meta-key {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--c-gray);
}

.page-contact .pc-hero__meta-val {
  font-size: 15px;
  color: var(--c-bone);
  letter-spacing: 0.02em;
}

/* ---------- 通用区块标题 ---------- */

.page-contact .pc-h2 {
  margin: 0;
  font-family: var(--f-head);
  font-size: clamp(24px, 4.6vw, 34px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--c-bone);
}

.page-contact .pc-h2--tight {
  font-size: clamp(22px, 4vw, 28px);
}

.page-contact .pc-note {
  margin: 0;
  max-width: 54ch;
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-gray);
}

/* ---------- 双栏主体 ---------- */

.page-contact .pc-split {
  display: grid;
  gap: var(--sp-5);
  padding: var(--sp-5) 0;
  border-bottom: 1px solid var(--c-line);
}

.page-contact .pc-split__aside {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.page-contact .pc-split__main {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  min-width: 0;
}

@media (min-width: 900px) {
  .page-contact .pc-split {
    grid-template-columns: var(--pc-aside) minmax(0, 1fr);
    gap: var(--sp-6);
    align-items: start;
  }
}

/* ---------- 渠道卡片 ---------- */

.page-contact .pc-channel {
  padding: var(--sp-3);
  border: 1px solid var(--c-line);
  border-radius: 2px;
  background: var(--pc-card-bg);
  transition: border-color 180ms ease, background-color 180ms ease;
}

.page-contact .pc-channel:hover,
.page-contact .pc-channel:focus-within {
  border-color: var(--c-cyan);
  background: rgba(53, 224, 214, 0.06);
}

.page-contact .pc-channel__tag {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--c-cyan);
}

.page-contact .pc-channel__name {
  margin: 0 0 8px;
  font-family: var(--f-head);
  font-size: 20px;
  font-weight: 700;
  color: var(--c-bone);
}

.page-contact .pc-channel__addr {
  display: inline-block;
  margin: 0 0 12px;
  padding-bottom: 2px;
  font-size: 15px;
  letter-spacing: 0.01em;
  color: var(--c-cyan);
  border-bottom: 1px dashed rgba(53, 224, 214, 0.4);
  word-break: break-all;
}

.page-contact .pc-channel__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--c-gray);
}

/* ---------- 响应时段环形刻度 ---------- */

.page-contact .pc-clock {
  position: relative;
  width: 172px;
  height: 172px;
  margin: var(--sp-2) auto 0;
}

.page-contact .pc-clock__ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: conic-gradient(
    from 0deg,
    rgba(242, 239, 230, 0.1) 0deg 135deg,
    var(--c-cyan) 135deg 270deg,
    rgba(242, 239, 230, 0.1) 270deg 360deg
  );
}

.page-contact .pc-clock__ring::after {
  content: "";
  position: absolute;
  inset: 16px;
  border-radius: 50%;
  background: var(--c-ink);
}

.page-contact .pc-clock__core {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  text-align: center;
}

.page-contact .pc-clock__time {
  font-size: 17px;
  letter-spacing: 0.01em;
  color: var(--c-bone);
}

.page-contact .pc-clock__cap {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--c-gray);
}

/* ---------- 图片容器 ---------- */

.page-contact .pc-figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--c-line);
  border-radius: 2px;
  background: var(--c-deep);
}

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

.page-contact .pc-figure .media-frame__cap {
  display: block;
  padding: 10px 14px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--c-gray);
  border-top: 1px solid var(--c-line-soft);
}

.page-contact .pc-figure--wide {
  margin-top: var(--sp-2);
}

/* ---------- 提交要点清单 ---------- */

.page-contact .pc-checklist {
  list-style: none;
  margin: var(--sp-2) 0 0;
  padding: 0;
  border-top: 1px solid var(--c-line);
}

.page-contact .pc-check {
  border-bottom: 1px solid var(--c-line-soft);
}

.page-contact .pc-check__label {
  display: grid;
  grid-template-columns: 22px 32px minmax(0, 1fr);
  align-items: start;
  gap: var(--sp-2);
  padding: var(--sp-3) 4px;
  cursor: pointer;
  transition: background-color 160ms ease;
}

.page-contact .pc-check__label:hover {
  background: var(--pc-tint-cyan);
}

.page-contact .pc-check__label:focus-within {
  outline: 2px solid var(--c-cyan);
  outline-offset: -2px;
}

.page-contact .pc-check__input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  margin: 0;
  pointer-events: none;
}

.page-contact .pc-check__box {
  position: relative;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  border: 1px solid var(--c-line);
  transition: border-color 160ms ease, background-color 160ms ease;
}

.page-contact .pc-check__box::after {
  content: "";
  position: absolute;
  inset: 5px;
  background: transparent;
  transition: background-color 180ms ease;
}

.page-contact .pc-check__input:checked + .pc-check__box {
  border-color: var(--c-cyan);
  background: var(--pc-tint-cyan-strong);
}

.page-contact .pc-check__input:checked + .pc-check__box::after {
  background: var(--c-cyan);
}

.page-contact .pc-check__idx {
  padding-top: 3px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--c-gray);
}

.page-contact .pc-check__body {
  display: block;
  min-width: 0;
}

.page-contact .pc-check__title {
  display: block;
  margin-bottom: 6px;
  font-family: var(--f-head);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--c-bone);
}

.page-contact .pc-check__desc {
  display: block;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--c-gray);
}

.page-contact .pc-checklist__hint {
  margin: var(--sp-3) 0 0;
  padding: 11px 14px;
  border-left: 2px solid var(--c-clay);
  background: rgba(196, 100, 60, 0.11);
  font-size: 14px;
  line-height: 1.65;
  color: var(--c-bone);
}

.page-contact .pc-checklist__ready {
  margin: 10px 0 0;
  padding: 11px 14px;
  border-left: 2px solid var(--c-cyan);
  background: rgba(53, 224, 214, 0.11);
  font-size: 14px;
  line-height: 1.65;
  color: var(--c-bone);
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity 220ms ease, transform 220ms ease;
}

.page-contact .pc-checklist:not(:has(.pc-check__input:not(:checked))) ~ .pc-checklist__ready {
  opacity: 1;
  transform: none;
}

/* ---------- 合作对接 ---------- */

.page-contact .pc-coop {
  padding: var(--sp-5) 0;
  border-bottom: 1px solid var(--c-line);
}

.page-contact .pc-coop__grid {
  display: grid;
  gap: 1px;
  margin-top: var(--sp-4);
  border: 1px solid var(--c-line);
  background: var(--c-line);
}

@media (min-width: 760px) {
  .page-contact .pc-coop__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-contact .pc-coop__card {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  padding: var(--sp-3);
  background: var(--c-ink);
}

.page-contact .pc-coop__idx {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--c-cyan);
}

.page-contact .pc-coop__card h3 {
  margin: 0;
  font-family: var(--f-head);
  font-size: 20px;
  font-weight: 700;
  color: var(--c-bone);
}

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

.page-contact .pc-ticks li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--c-gray);
}

.page-contact .pc-ticks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 7px;
  height: 7px;
  border: 1px solid var(--c-cyan);
}

.page-contact .pc-coop__foot {
  margin: var(--sp-3) 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-gray);
}

/* ---------- 联系方式与备案 ---------- */

.page-contact .pc-legal {
  padding: var(--sp-5) 0;
  border-bottom: 1px solid var(--c-line);
}

.page-contact .pc-legal__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-4);
  margin-top: var(--sp-4);
  padding-top: var(--sp-4);
  border-top: 1px solid var(--c-line);
}

@media (min-width: 640px) {
  .page-contact .pc-legal__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--sp-4) var(--sp-5);
  }
}

@media (min-width: 1040px) {
  .page-contact .pc-legal__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-contact .pc-legal__row {
  display: flex;
  flex-direction: column;
  gap: 7px;
  min-width: 0;
}

.page-contact .pc-legal__key {
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--c-gray);
}

.page-contact .pc-legal__val {
  font-size: 15px;
  line-height: 1.65;
  color: var(--c-bone);
  word-break: break-word;
}

.page-contact .pc-legal__note {
  margin: var(--sp-3) 0 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--c-gray);
}

/* ---------- 底部色带 ---------- */

.page-contact .pc-selfcheck {
  margin-top: var(--sp-5);
  padding: var(--sp-4) var(--sp-3) var(--sp-4) var(--sp-4);
  border-left: 3px solid var(--c-cyan);
  background: linear-gradient(
    100deg,
    rgba(53, 224, 214, 0.13) 0%,
    rgba(255, 107, 44, 0.08) 58%,
    rgba(11, 27, 46, 0) 100%
  );
}

.page-contact .pc-selfcheck .pc-note {
  margin-top: var(--sp-2);
  color: var(--c-bone);
}

.page-contact .pc-links {
  list-style: none;
  margin: var(--sp-3) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  border: 1px solid var(--c-line);
  background: var(--c-line);
}

@media (min-width: 760px) {
  .page-contact .pc-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-contact .pc-links__item {
  padding: var(--sp-3);
  background: rgba(11, 27, 46, 0.92);
  border-left: 2px solid transparent;
  transition: border-color 160ms ease, background-color 160ms ease;
}

.page-contact .pc-links__item:hover,
.page-contact .pc-links__item:focus-within {
  border-left-color: var(--c-cyan);
  background: rgba(53, 224, 214, 0.07);
}

.page-contact .pc-links__item a {
  display: inline-block;
  padding-bottom: 2px;
  font-family: var(--f-head);
  font-size: 18px;
  font-weight: 700;
  color: var(--c-bone);
  text-decoration: none;
  border-bottom: 1px solid var(--c-cyan);
}

.page-contact .pc-links__item a:hover,
.page-contact .pc-links__item a:focus-visible {
  color: var(--c-cyan);
}

.page-contact .pc-links__item p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--c-gray);
}

@media (min-width: 900px) {
  .page-contact .pc-hero {
    padding-top: var(--sp-6);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-channel,
  .page-contact .pc-check__box,
  .page-contact .pc-check__box::after,
  .page-contact .pc-check__label,
  .page-contact .pc-checklist__ready,
  .page-contact .pc-links__item {
    transition: none;
  }
}