.page-contact {
  --ct-hair: rgba(27, 39, 72, .9);
  --ct-cyan-soft: rgba(34, 224, 214, .4);
  position: relative;
  background: var(--ink);
  color: var(--text);
}

.page-contact a {
  text-decoration: none;
}

/* ---------- 首屏 ---------- */

.page-contact .ct-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(1.25rem, 4vw, 2.5rem) 0 clamp(2.5rem, 6vw, 4rem);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(60rem 30rem at 88% -25%, rgba(108, 76, 241, .24), transparent 62%),
    radial-gradient(42rem 26rem at 6% 0%, rgba(34, 224, 214, .10), transparent 60%),
    var(--ink);
}

.page-contact .ct-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(154, 166, 196, .18) 1px, transparent 1px);
  background-size: 22px 22px;
  opacity: .42;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(180deg, #000, transparent 78%);
  mask-image: linear-gradient(180deg, #000, transparent 78%);
}

.page-contact .ct-hero .wrap {
  position: relative;
  z-index: 1;
}

.page-contact .breadcrumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: .5rem;
  margin-bottom: 1.25rem;
  font-family: var(--mono);
  font-size: .6875rem;
  letter-spacing: .08em;
  color: var(--muted);
}

.page-contact .breadcrumbs__link {
  color: var(--cyan);
  border-bottom: 1px solid transparent;
  transition: border-color .24s ease;
}

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

.page-contact .breadcrumbs__item::before {
  content: "/";
  margin-right: .5rem;
  color: var(--line);
}

.page-contact .ct-h1 {
  margin: 0 0 .9rem;
  max-width: 22ch;
  font-size: clamp(1.75rem, 6.2vw, 3.25rem);
  line-height: 1.12;
  font-weight: 900;
  letter-spacing: -.02em;
}

.page-contact .ct-lede {
  margin: 0 0 clamp(1.5rem, 4vw, 2.25rem);
  max-width: 46rem;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .ct-hl {
  color: var(--amber);
  font-family: var(--mono);
  letter-spacing: .02em;
}

.page-contact .ct-block__label {
  margin: 0 0 .7rem;
  font-family: var(--mono);
  font-size: .6875rem;
  letter-spacing: .16em;
  color: var(--muted);
}

.page-contact .ct-hero__grid {
  display: grid;
  gap: 1.25rem;
}

/* ---------- 渠道对照 ---------- */

.page-contact .ct-ch {
  list-style: none;
  margin: 0;
  padding: 0;
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow-hard);
}

.page-contact .ct-ch__row {
  padding: 1rem 1.05rem 1.1rem;
}

.page-contact .ct-ch__row + .ct-ch__row {
  border-top: 1px dashed var(--ct-hair);
}

.page-contact .ct-ch__head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: .5rem;
  margin-bottom: .5rem;
}

.page-contact .ct-ch__idx {
  font-family: var(--mono);
  font-size: .6875rem;
  letter-spacing: .06em;
  color: var(--cream);
  padding: .12rem .38rem;
  border: 1px solid rgba(244, 239, 227, .28);
  background: rgba(244, 239, 227, .07);
  border-radius: 2px;
}

.page-contact .ct-ch__name {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: -.01em;
}

.page-contact .ct-ch__badge {
  font-family: var(--mono);
  font-size: .625rem;
  letter-spacing: .1em;
  color: var(--cyan);
  padding: .1rem .4rem;
  border: 1px solid var(--ct-cyan-soft);
  border-radius: 2px;
}

.page-contact .ct-ch__use {
  margin: 0 0 .65rem;
  font-size: .9rem;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .ct-ch__meta {
  display: grid;
  gap: .4rem;
  margin: 0;
}

.page-contact .ct-ch__pair {
  display: grid;
  gap: .05rem;
}

.page-contact .ct-ch__key {
  margin: 0;
  font-family: var(--mono);
  font-size: .625rem;
  letter-spacing: .12em;
  color: var(--muted);
}

.page-contact .ct-ch__val {
  margin: 0;
  font-size: .875rem;
  line-height: 1.6;
  color: var(--text);
}

.page-contact .ct-ch__val--time {
  color: var(--amber);
  font-family: var(--mono);
  font-size: .8125rem;
  letter-spacing: .01em;
}

/* ---------- 首屏右侧信息卡 ---------- */

.page-contact .ct-quick {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow-hard);
}

.page-contact .ct-quick::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--grad);
  z-index: 1;
}

.page-contact .ct-quick__media {
  overflow: hidden;
}

.page-contact .ct-quick__media img,
.page-contact .ct-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(.55) brightness(.78) contrast(1.06);
}

.page-contact .ct-quick__media img {
  aspect-ratio: 3 / 2;
}

.page-contact .ct-quick__body {
  padding: 1.1rem 1.1rem 1.25rem;
}

.page-contact .ct-quick__title {
  margin: 0 0 .85rem;
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: -.01em;
}

.page-contact .ct-quick__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .6rem;
}

.page-contact .ct-quick__list li {
  display: grid;
  gap: .1rem;
  padding-left: .8rem;
  border-left: 2px solid var(--line);
}

.page-contact .ct-quick__k {
  font-family: var(--mono);
  font-size: .625rem;
  letter-spacing: .12em;
  color: var(--cyan);
}

.page-contact .ct-quick__v {
  font-size: .875rem;
  line-height: 1.6;
  color: var(--text);
}

/* ---------- 通用区块 ---------- */

.page-contact .ct-sec {
  padding: clamp(2.25rem, 5vw, 3.5rem) 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-sec:last-of-type {
  border-bottom: 0;
}

.page-contact .ct-sec__head {
  margin: 0 0 clamp(1.25rem, 3vw, 1.9rem);
}

.page-contact .ct-sec__num {
  display: block;
  margin-bottom: .5rem;
  font-family: var(--mono);
  font-size: .6875rem;
  letter-spacing: .16em;
  color: var(--amber);
}

.page-contact .ct-sec__title {
  margin: 0 0 .55rem;
  font-size: clamp(1.35rem, 4.6vw, 1.9rem);
  font-weight: 900;
  letter-spacing: -.015em;
  line-height: 1.3;
}

.page-contact .ct-sec__note {
  margin: 0;
  max-width: 54rem;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 反馈说明 ---------- */

.page-contact .ct-flow {
  display: grid;
  gap: 1.25rem;
}

.page-contact .ct-figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--panel);
  overflow: hidden;
  box-shadow: var(--shadow-hard);
}

.page-contact .ct-figure img {
  aspect-ratio: 5 / 3;
}

.page-contact .ct-figure figcaption {
  padding: .65rem .9rem;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: .6875rem;
  letter-spacing: .06em;
  line-height: 1.6;
  color: var(--muted);
}

.page-contact .ct-fields {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .8rem;
}

.page-contact .ct-field {
  position: relative;
  padding: 1rem 1.05rem 1.05rem 1.15rem;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-contact .ct-field::before {
  content: "";
  position: absolute;
  left: -1px;
  top: -1px;
  bottom: -1px;
  width: 3px;
  background: var(--grad);
}

.page-contact .ct-field__num {
  font-family: var(--mono);
  font-size: .625rem;
  letter-spacing: .14em;
  color: var(--cyan);
}

.page-contact .ct-field__name {
  margin: .2rem 0 .35rem;
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: -.01em;
}

.page-contact .ct-field__desc {
  margin: 0;
  font-size: .9rem;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 数据与订阅问题 ---------- */

.page-contact .ct-issues {
  display: grid;
  gap: 1rem;
}

.page-contact .ct-issue {
  display: flex;
  flex-direction: column;
  gap: .5rem;
  padding: 1.05rem;
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow-soft);
}

.page-contact .ct-issue__tag {
  margin: 0;
  font-family: var(--mono);
  font-size: .625rem;
  letter-spacing: .14em;
  color: var(--cyan);
}

.page-contact .ct-issue__name {
  margin: 0;
  font-size: 1.02rem;
  font-weight: 800;
  line-height: 1.4;
}

.page-contact .ct-issue__desc {
  margin: 0;
  font-size: .9rem;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .ct-issue__sub {
  margin: .4rem 0 0;
  font-family: var(--mono);
  font-size: .625rem;
  letter-spacing: .12em;
  color: var(--amber);
}

.page-contact .ct-issue__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .35rem;
}

.page-contact .ct-issue__list li {
  position: relative;
  padding-left: .95rem;
  font-size: .875rem;
  line-height: 1.65;
  color: var(--text);
}

.page-contact .ct-issue__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: .45rem;
  height: 1px;
  background: var(--cyan);
}

/* ---------- 合作与选题 ---------- */

.page-contact .ct-coop {
  display: grid;
  gap: 1rem;
}

.page-contact .ct-coop__row {
  display: grid;
  gap: .85rem;
  padding: 1.1rem;
  border: 1px solid var(--line);
  background: var(--panel);
  transition: border-color .24s ease, transform .24s ease;
}

.page-contact .ct-coop__row:hover {
  border-color: var(--ct-cyan-soft);
  transform: translateY(-2px);
}

.page-contact .ct-coop__name {
  margin: 0 0 .3rem;
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: -.01em;
}

.page-contact .ct-coop__tag {
  margin: 0;
  font-family: var(--mono);
  font-size: .625rem;
  letter-spacing: .1em;
  line-height: 1.6;
  color: var(--muted);
}

.page-contact .ct-coop__desc {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.78;
  color: var(--text);
}

.page-contact .ct-mats {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin-top: .75rem;
}

.page-contact .ct-mat {
  padding: .22rem .5rem;
  border: 1px solid var(--line);
  border-radius: 2px;
  font-family: var(--mono);
  font-size: .625rem;
  letter-spacing: .04em;
  color: var(--muted);
}

.page-contact .ct-tail {
  margin: 1.25rem 0 0;
  padding-top: 1rem;
  border-top: 1px dashed var(--ct-hair);
  font-size: .9375rem;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 联系信息 ---------- */

.page-contact .ct-contact {
  display: grid;
  gap: 1px;
  border: 1px solid var(--line);
  background: var(--line);
}

.page-contact .ct-contact__cell {
  display: grid;
  gap: .45rem;
  align-content: start;
  padding: 1.1rem;
  background: var(--panel);
}

.page-contact .ct-contact__key {
  margin: 0;
  font-family: var(--mono);
  font-size: .625rem;
  letter-spacing: .14em;
  color: var(--muted);
}

.page-contact .ct-contact__val {
  margin: 0;
  font-size: 1.02rem;
  font-weight: 800;
  letter-spacing: -.01em;
  line-height: 1.5;
  color: var(--amber);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .ct-contact__val--plain {
  color: var(--text);
  font-size: .98rem;
}

.page-contact .ct-contact__note {
  margin: 0;
  font-size: .8125rem;
  line-height: 1.65;
  color: var(--muted);
}

.page-contact .ct-contact__foot {
  margin: 1.1rem 0 0;
  font-size: .875rem;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 自查清单 ---------- */

.page-contact .ct-check {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .6rem;
}

.page-contact .ct-check__item {
  display: flex;
  align-items: flex-start;
  gap: .7rem;
  padding: .85rem 1rem;
  border: 1px solid var(--line);
  background: var(--panel);
  cursor: pointer;
  transition: border-color .24s ease, box-shadow .24s ease;
}

.page-contact .ct-check__item:hover {
  border-color: var(--ct-cyan-soft);
}

.page-contact .ct-check__item:has(.ct-check__box:checked) {
  border-color: var(--ct-cyan-soft);
  box-shadow: inset 3px 0 0 var(--cyan);
}

.page-contact .ct-check__box {
  flex: 0 0 auto;
  width: 1.05rem;
  height: 1.05rem;
  margin: .2rem 0 0;
  accent-color: var(--cyan);
  cursor: pointer;
}

.page-contact .ct-check__text {
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--text);
}

.page-contact .ct-check__hint {
  margin: 1.25rem 0 0;
  padding: .9rem 1rem;
  border-left: 3px solid var(--amber);
  background: rgba(255, 182, 61, .07);
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--text);
}

/* ---------- 链接 ---------- */

.page-contact .ct-link {
  color: var(--cyan);
  border-bottom: 1px solid var(--ct-cyan-soft);
  transition: border-color .24s ease, color .24s ease;
}

.page-contact .ct-link:hover,
.page-contact .ct-link:focus-visible {
  border-bottom-color: var(--cyan);
  color: var(--text);
}

/* ---------- 响应式 ---------- */

@media (max-width: 599px) {
  .page-contact .ct-ch,
  .page-contact .ct-quick,
  .page-contact .ct-figure {
    box-shadow: 4px 4px 0 rgba(0, 0, 0, .5);
  }
}

@media (min-width: 600px) {
  .page-contact .ct-ch__meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: .75rem;
  }
}

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

  .page-contact .ct-contact {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 880px) {
  .page-contact .ct-coop__row {
    grid-template-columns: 16rem minmax(0, 1fr);
    gap: 1.5rem;
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-contact .ct-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: 1.75rem;
  }

  .page-contact .ct-flow {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
    gap: 1.75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-coop__row,
  .page-contact .ct-check__item,
  .page-contact .ct-link,
  .page-contact .breadcrumbs__link {
    transition: none;
  }

  .page-contact .ct-coop__row:hover {
    transform: none;
  }
}