.page-contact {
  --ct-gap: clamp(20px, 3vw, 40px);
  --ct-pad: clamp(16px, 3.2vw, 30px);
  position: relative;
  background: var(--pitch-ink);
  color: var(--chalk);
  overflow-x: clip;
}

.page-contact .shell {
  padding-inline: clamp(16px, 4vw, 40px);
}

/* ---------- 面包屑 ---------- */

.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-block: clamp(18px, 3vw, 30px) 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--score-gray);
}

.page-contact .breadcrumb__link {
  color: var(--score-gray);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .25s var(--ease), border-color .25s var(--ease);
}

.page-contact .breadcrumb__link:hover,
.page-contact .breadcrumb__link:focus-visible {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

.page-contact .breadcrumb__sep {
  color: var(--line-strong);
}

.page-contact .breadcrumb__item[aria-current="page"] {
  color: var(--chalk);
}

/* ---------- 章节公共 ---------- */

.page-contact .section {
  position: relative;
  padding-block: clamp(44px, 7vw, 92px);
}

.page-contact .section-num {
  display: block;
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: clamp(26px, 4vw, 42px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: .02em;
  color: var(--lime);
  opacity: .88;
}

.page-contact .eyebrow {
  color: var(--score-gray);
}

.page-contact .ct-h2 {
  margin: 0 0 16px;
  font-family: var(--font-head);
  font-size: clamp(28px, 4.4vw, 48px);
  font-weight: 800;
  line-height: .98;
  letter-spacing: -.01em;
  color: var(--chalk);
}

.page-contact .ct-lead {
  max-width: 52ch;
  margin: 0;
  font-size: 17px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 首屏 ---------- */

.page-contact .ct-hero {
  padding-block: clamp(28px, 5vw, 56px) clamp(44px, 7vw, 88px);
}

.page-contact .ct-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 68%;
  z-index: 0;
  pointer-events: none;
  background:
    linear-gradient(133deg, var(--deep-moss) 0%, var(--night-blue) 52%, rgba(11, 27, 43, 0) 100%);
  clip-path: polygon(0 0, 100% 0, 100% 76%, 0 100%);
}

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

.page-contact .ct-hero__title {
  margin: 12px 0 20px;
  font-family: var(--font-head);
  font-size: clamp(42px, 9vw, 100px);
  font-weight: 800;
  line-height: .9;
  letter-spacing: -.025em;
  color: var(--chalk);
  text-wrap: balance;
}

.page-contact .ct-hero__lede {
  max-width: 48ch;
  margin: 0 0 24px;
  font-size: clamp(16px, 1.7vw, 18px);
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .ct-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-contact .ct-hero__figure {
  position: relative;
  margin: 0;
}

.page-contact .ct-hero__figure::after {
  content: "";
  position: absolute;
  right: -12px;
  bottom: -14px;
  width: 42%;
  height: 38%;
  z-index: 0;
  pointer-events: none;
  border: 1px solid var(--line-strong);
  background: repeating-linear-gradient(45deg, rgba(200, 255, 61, .14) 0 2px, rgba(200, 255, 61, 0) 2px 9px);
}

.page-contact .ct-hero__media {
  position: relative;
  z-index: 1;
  border: 1px solid var(--line);
  background: var(--stand-gray);
}

.page-contact .ct-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(.82) contrast(1.06) brightness(.94);
}

.page-contact .ct-hero__media .media__caption {
  margin: 0;
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  background: var(--pitch-ink);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--score-gray);
}

/* ---------- 01 沟通渠道 ---------- */

.page-contact .ct-channel__grid {
  display: grid;
  gap: var(--ct-gap);
}

.page-contact .ct-channel__main {
  border-left: 1px solid var(--line-strong);
  padding-left: clamp(16px, 2.6vw, 30px);
}

.page-contact .ct-anchors {
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-contact .ct-anchor {
  display: grid;
  gap: 7px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-anchor__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--score-gray);
}

.page-contact .ct-anchor__value {
  font-family: var(--font-mono);
  font-size: clamp(19px, 3vw, 34px);
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -.01em;
  font-variant-numeric: tabular-nums;
  word-break: break-word;
  overflow-wrap: anywhere;
  color: var(--chalk);
}

.page-contact .ct-anchor--mail .ct-anchor__value {
  color: var(--lime);
}

.page-contact .ct-anchor--addr .ct-anchor__value {
  font-size: clamp(17px, 2.3vw, 24px);
  letter-spacing: .01em;
}

.page-contact .ct-anchor__note {
  font-size: 14px;
  line-height: 1.65;
  color: var(--muted);
}

.page-contact .ct-channel__side {
  display: grid;
  align-content: start;
  gap: 4px;
  padding: var(--ct-pad);
  border: 1px solid var(--line);
  border-top: 2px solid var(--amber);
  background: linear-gradient(168deg, var(--night-blue) 0%, rgba(18, 51, 43, .9) 100%);
}

.page-contact .ct-sideLabel {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-contact .ct-fold {
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-fold:last-child {
  border-bottom: 0;
}

.page-contact .ct-fold__sum {
  position: relative;
  padding: 15px 30px 15px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--chalk);
  transition: color .22s var(--ease);
}

.page-contact .ct-fold__sum::-webkit-details-marker {
  display: none;
}

.page-contact .ct-fold__sum:hover,
.page-contact .ct-fold__sum:focus-visible {
  color: var(--lime);
}

.page-contact .ct-fold__sum::after {
  content: "+";
  position: absolute;
  top: 50%;
  right: 0;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--lime);
}

.page-contact .ct-fold[open] .ct-fold__sum::after {
  content: "–";
}

.page-contact .ct-fold__body {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 02 反馈范围 ---------- */

.page-contact .ct-scope {
  background:
    linear-gradient(180deg, rgba(27, 43, 43, .55) 0%, rgba(7, 17, 15, 0) 100%);
}

.page-contact .ct-scope__head .ct-lead {
  max-width: 44ch;
}

.page-contact .ct-scope__grid {
  display: grid;
  gap: 16px;
  margin-top: 32px;
}

.page-contact .ct-scopeCard {
  position: relative;
  padding: clamp(20px, 2.6vw, 28px);
  background: var(--stand-gray);
  border: 1px solid var(--line);
  border-left: 3px solid var(--lime);
  transition: transform .32s var(--ease), border-color .32s var(--ease), background-color .32s var(--ease);
}

.page-contact .ct-scopeCard:nth-child(2) {
  border-left-color: var(--amber);
}

.page-contact .ct-scopeCard:nth-child(3) {
  border-left-color: var(--rose);
}

.page-contact .ct-scopeCard:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
  background: #1F3130;
}

.page-contact .ct-scopeCard__tag {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--score-gray);
}

.page-contact .ct-scopeCard__title {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-size: clamp(20px, 2.2vw, 24px);
  font-weight: 800;
  line-height: 1.15;
  color: var(--chalk);
}

.page-contact .ct-scopeCard__body {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .ct-scopeCard__body:last-child {
  margin-bottom: 0;
}

.page-contact .ct-scope__figure {
  margin: clamp(32px, 5vw, 56px) 0 0;
}

.page-contact .ct-scope__media {
  border: 1px solid var(--line);
  background: var(--stand-gray);
}

.page-contact .ct-scope__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(.78) contrast(1.05);
}

.page-contact .ct-scope__media .media__caption {
  margin: 0;
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  background: var(--pitch-ink);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--score-gray);
}

/* ---------- 03 回复时间 ---------- */

.page-contact .ct-response__grid {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
  align-items: start;
}

.page-contact .ct-clock {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-strong);
}

.page-contact .ct-clock__item {
  display: grid;
  grid-template-columns: minmax(60px, auto) 1fr;
  gap: 16px;
  align-items: baseline;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-clock__time {
  font-family: var(--font-mono);
  font-size: clamp(18px, 2.2vw, 24px);
  font-variant-numeric: tabular-nums;
  color: var(--lime);
  letter-spacing: .02em;
}

.page-contact .ct-clock__text {
  font-size: 15px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 04 提交建议 ---------- */

.page-contact .ct-tips {
  background: linear-gradient(180deg, rgba(11, 27, 43, .7) 0%, rgba(7, 17, 15, 0) 100%);
}

.page-contact .ct-tips__grid {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
  align-items: start;
}

.page-contact .ct-tips__list {
  counter-reset: ctTip;
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 16px;
}

.page-contact .ct-tips__list li {
  counter-increment: ctTip;
  display: grid;
  grid-template-columns: minmax(30px, auto) 1fr;
  gap: 14px;
  padding-bottom: 16px;
  border-bottom: 1px dashed var(--line);
}

.page-contact .ct-tips__list li::before {
  content: counter(ctTip, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.8;
  letter-spacing: .08em;
  color: var(--amber);
}

.page-contact .ct-tips__list li span {
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 继续查档 ---------- */

.page-contact .ct-next {
  padding-block: clamp(40px, 6vw, 80px) clamp(56px, 8vw, 104px);
}

.page-contact .ct-next__list {
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-contact .ct-next__link {
  display: grid;
  gap: 6px;
  padding: 20px clamp(16px, 2.4vw, 26px);
  text-decoration: none;
  border: 1px solid var(--line);
  background: rgba(27, 43, 43, .45);
  transition: transform .28s var(--ease), border-color .28s var(--ease), background-color .28s var(--ease);
}

.page-contact .ct-next__link:hover,
.page-contact .ct-next__link:focus-visible {
  transform: translateX(6px);
  border-color: var(--lime);
  background: rgba(18, 51, 43, .85);
}

.page-contact .ct-next__title {
  font-family: var(--font-head);
  font-size: clamp(18px, 2vw, 22px);
  font-weight: 700;
  line-height: 1.2;
  color: var(--chalk);
}

.page-contact .ct-next__link:hover .ct-next__title,
.page-contact .ct-next__link:focus-visible .ct-next__title {
  color: var(--lime);
}

.page-contact .ct-next__desc {
  font-size: 14px;
  line-height: 1.65;
  color: var(--score-gray);
}

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {
  .page-contact .ct-scope__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 960px) {
  .page-contact .ct-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    gap: clamp(36px, 5vw, 72px);
  }

  .page-contact .ct-channel__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, .82fr);
    gap: clamp(36px, 5vw, 64px);
  }

  .page-contact .ct-response__grid {
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
  }

  .page-contact .ct-tips__grid {
    grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr);
  }

  .page-contact .ct-clock__item:first-child {
    padding-top: 24px;
  }
}

@media (min-width: 1200px) {
  .page-contact .ct-next__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-scopeCard,
  .page-contact .ct-next__link {
    transition: none;
  }

  .page-contact .ct-scopeCard:hover,
  .page-contact .ct-next__link:hover {
    transform: none;
  }
}
</main>