.page-contact {
  --ct-panel: rgba(19, 31, 51, .68);
  --ct-body-dim: #41505F;
  --ct-gap: clamp(1.25rem, 3vw, 2rem);
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  position: relative;
  padding: clamp(2rem, 6vw, 4.5rem) 0 clamp(2rem, 5vw, 3.5rem);
  background:
    radial-gradient(900px 420px at 80% -10%, rgba(31, 214, 95, .18), transparent 62%),
    radial-gradient(620px 320px at 4% 4%, rgba(255, 201, 74, .12), transparent 60%),
    var(--ink);
  border-bottom: 1px solid var(--gold-line);
}

.page-contact .ct-hero .crumbs {
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
}

.page-contact .ct-hero__title {
  margin: .5rem 0 0;
  max-width: 20ch;
  font-size: clamp(2rem, 6.5vw, 3.6rem);
  line-height: 1.08;
  letter-spacing: -.02em;
  color: var(--text-light);
}

.page-contact .ct-hero__lede {
  max-width: 62ch;
  margin: 1rem 0 0;
  color: var(--text-dim);
  font-size: clamp(.9375rem, 2.2vw, 1.0625rem);
  line-height: 1.78;
}

.page-contact .ct-hero__facts {
  list-style: none;
  margin: clamp(1.5rem, 4vw, 2.5rem) 0 0;
  padding: 1.25rem 0 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem 2rem;
  border-top: 1px solid var(--line-light);
}

.page-contact .ct-hero__facts li {
  display: flex;
  flex-direction: column;
  gap: .3rem;
}

.page-contact .ct-hero__facts .num {
  font-size: clamp(1.25rem, 4vw, 1.6rem);
  line-height: 1.2;
}

.page-contact .ct-hero__facts span:last-child {
  font-size: .8125rem;
  color: var(--text-dim);
  letter-spacing: .04em;
}

/* ---------- 三条联络渠道 ---------- */
.page-contact .ct-channels {
  position: relative;
  overflow: hidden;
  padding: clamp(2.5rem, 6vw, 4.5rem) 0;
  background: var(--ink-2);
}

.page-contact .ct-channels__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  opacity: .32;
}

.page-contact .ct-channels__veil {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, rgba(11, 18, 32, .84), rgba(11, 18, 32, .92) 58%, var(--ink-2));
}

.page-contact .ct-channels__inner {
  position: relative;
  z-index: 2;
}

.page-contact .ct-channels .section-head {
  margin-bottom: clamp(1.5rem, 4vw, 2.5rem);
}

.page-contact .ct-channels .h-sec,
.page-contact .ct-sla .h-sec,
.page-contact .ct-quick .h-sec {
  color: var(--text-light);
}

.page-contact .ct-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ct-gap);
  align-items: stretch;
}

.page-contact .ct-card {
  display: flex;
  flex-direction: column;
  gap: .85rem;
  padding: clamp(1.25rem, 3vw, 2rem);
  border-radius: var(--r-lg);
  border: 1px solid var(--line-light);
  background: var(--ct-panel);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.page-contact .ct-card__label {
  margin: 0;
  font-size: .75rem;
  letter-spacing: .18em;
  color: var(--text-dim);
}

.page-contact .ct-card__value {
  margin: 0;
  font-weight: 700;
  line-height: 1.25;
  word-break: break-word;
  overflow-wrap: anywhere;
}

.page-contact .ct-card__value--mail {
  font-family: var(--font-num);
  font-size: clamp(1rem, 2.3vw, 1.4rem);
  color: var(--gold);
}

.page-contact .ct-card__value--tel {
  font-family: var(--font-num);
  font-size: clamp(1.5rem, 5vw, 2.125rem);
  letter-spacing: -.01em;
  color: var(--grass);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: border-color .2s ease, color .2s ease;
}

.page-contact .ct-card__value--tel:hover,
.page-contact .ct-card__value--tel:focus-visible {
  border-bottom-color: var(--grass);
  color: var(--grass);
}

.page-contact .ct-card__value--addr {
  font-size: clamp(1rem, 2.6vw, 1.1875rem);
  color: var(--text-light);
}

.page-contact .ct-card__meta {
  margin: auto 0 0;
  padding-top: .5rem;
  border-top: 1px dashed var(--line-light);
  font-size: .8125rem;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-contact .ct-copy {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .5rem .95rem;
  border-radius: 999px;
  border: 1px solid var(--grass-line);
  background: rgba(31, 214, 95, .12);
  color: var(--grass);
  font-family: inherit;
  font-size: .875rem;
  line-height: 1;
  cursor: pointer;
  transition: background .2s ease, color .2s ease, border-color .2s ease;
}

.page-contact .ct-copy:hover,
.page-contact .ct-copy:focus-visible {
  background: rgba(31, 214, 95, .22);
}

.page-contact .ct-copy.is-copied {
  background: var(--grass);
  border-color: var(--grass);
  color: var(--ink);
}

.page-contact .ct-copy__icon {
  flex: 0 0 auto;
}

/* ---------- 反馈写法 ---------- */
.page-contact .ct-write {
  padding: clamp(2.5rem, 6vw, 4.5rem) 0;
  background: var(--board);
  color: var(--text-dark);
}

.page-contact .ct-write__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
}

.page-contact .ct-write__media {
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line-dark);
  background: var(--ink-2);
}

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

.page-contact .ct-write__body .h-sec,
.page-contact .ct-coop .h-sec {
  color: var(--text-dark);
}

.page-contact .ct-write__lead {
  margin: .85rem 0 1.5rem;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--ct-body-dim);
}

.page-contact .ct-steps {
  list-style: none;
  counter-reset: ct-step;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.1rem;
}

.page-contact .ct-steps li {
  counter-increment: ct-step;
  position: relative;
  padding-left: 2.75rem;
}

.page-contact .ct-steps li::before {
  content: counter(ct-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: .05rem;
  font-family: var(--font-num);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--grass-deep);
  letter-spacing: -.02em;
}

.page-contact .ct-steps strong {
  display: block;
  margin-bottom: .25rem;
  font-size: 1.0625rem;
  color: var(--text-dark);
}

.page-contact .ct-steps p {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.78;
  color: var(--ct-body-dim);
}

/* ---------- 回复节奏 ---------- */
.page-contact .ct-sla {
  padding: clamp(2.5rem, 6vw, 4.5rem) 0;
  background:
    linear-gradient(180deg, var(--ink), var(--ink-2) 70%, var(--ink));
  border-top: 1px solid var(--line-light);
  border-bottom: 1px solid var(--line-light);
}

.page-contact .ct-sla .section-head {
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
}

.page-contact .ct-sla__sub {
  margin: .75rem 0 0;
  max-width: 56ch;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-contact .ct-sla__list {
  display: grid;
  border-bottom: 1px solid var(--line-light);
}

.page-contact .ct-sla__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .85rem 1.25rem;
  padding: 1.25rem 0;
  border-top: 1px solid var(--line-light);
}

.page-contact .ct-sla__no {
  flex: 0 0 auto;
  font-family: var(--font-num);
  font-size: clamp(1.25rem, 4vw, 1.6rem);
  font-weight: 700;
  color: var(--gold);
  letter-spacing: -.02em;
}

.page-contact .ct-sla__text {
  flex: 1 1 15rem;
  min-width: 0;
}

.page-contact .ct-sla__text h3 {
  margin: 0 0 .35rem;
  font-size: 1.0625rem;
  color: var(--text-light);
}

.page-contact .ct-sla__text p {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--text-dim);
}

/* ---------- 合作方向 ---------- */
.page-contact .ct-coop {
  padding: clamp(2.5rem, 6vw, 4.5rem) 0;
  background: var(--board);
  color: var(--text-dark);
}

.page-contact .ct-coop .section-head {
  margin-bottom: clamp(1.5rem, 4vw, 2.25rem);
}

.page-contact .ct-coop__sub {
  margin: .75rem 0 0;
  max-width: 58ch;
  font-size: .9375rem;
  line-height: 1.78;
  color: var(--ct-body-dim);
}

.page-contact .ct-coop__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1rem, 3vw, 1.5rem);
}

.page-contact .ct-coop__item {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-dark);
  border-radius: var(--r-md);
  background: var(--white);
  transition: border-color .2s ease, box-shadow .2s ease;
}

.page-contact .ct-coop__item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--grass-deep);
}

.page-contact .ct-coop__item--b::before {
  background: var(--gold);
}

.page-contact .ct-coop__item--c::before {
  background: var(--cyan);
}

.page-contact .ct-coop__item::after {
  content: "";
  position: absolute;
  top: -34%;
  right: -22%;
  width: 48%;
  height: 168%;
  transform: rotate(12deg);
  background: linear-gradient(120deg, rgba(31, 214, 95, .14), transparent 72%);
  pointer-events: none;
}

.page-contact .ct-coop__item--b::after {
  background: linear-gradient(120deg, rgba(255, 201, 74, .18), transparent 72%);
}

.page-contact .ct-coop__item--c::after {
  background: linear-gradient(120deg, rgba(77, 216, 224, .18), transparent 72%);
}

.page-contact .ct-coop__item[open] {
  box-shadow: var(--shadow-soft);
}

.page-contact .ct-coop__item summary {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: 1.15rem 1.25rem;
  list-style: none;
  cursor: pointer;
}

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

.page-contact .ct-coop__item summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-num);
  font-size: 1.375rem;
  line-height: 1;
  color: var(--grass-deep);
}

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

.page-contact .ct-coop__idx {
  flex: 0 0 auto;
  font-family: var(--font-num);
  font-size: .875rem;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--grass-deep);
}

.page-contact .ct-coop__item--b .ct-coop__idx {
  color: #A8781A;
}

.page-contact .ct-coop__item--c .ct-coop__idx {
  color: #17727A;
}

.page-contact .ct-coop__name {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text-dark);
}

.page-contact .ct-coop__body {
  position: relative;
  z-index: 1;
  padding: 0 1.25rem 1.25rem;
}

.page-contact .ct-coop__body p {
  margin: 0 0 .85rem;
  font-size: .9375rem;
  line-height: 1.78;
  color: var(--ct-body-dim);
}

.page-contact .ct-coop__list {
  list-style: none;
  margin: 0 0 .9rem;
  padding: 0;
  display: grid;
  gap: .45rem;
}

.page-contact .ct-coop__list li {
  position: relative;
  padding-left: 1.1rem;
  font-size: .875rem;
  line-height: 1.72;
  color: var(--text-dark);
}

.page-contact .ct-coop__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62rem;
  width: .42rem;
  height: .42rem;
  border-radius: 50%;
  background: var(--grass-deep);
}

.page-contact .ct-coop__foot {
  margin: 0;
  font-family: var(--font-num);
  font-size: .8125rem;
  line-height: 1.7;
  color: var(--grass-deep);
  word-break: break-word;
}

/* ---------- 常见反馈速查 ---------- */
.page-contact .ct-quick {
  padding: clamp(2.5rem, 6vw, 4.5rem) 0;
  background:
    radial-gradient(720px 360px at 88% 0%, rgba(77, 216, 224, .12), transparent 62%),
    var(--ink);
}

.page-contact .ct-quick .section-head {
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
}

.page-contact .ct-quick__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: .75rem;
}

.page-contact .ct-quick__list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.15rem;
  border-radius: var(--r-md);
  border: 1px solid var(--line-light);
  background: rgba(19, 31, 51, .62);
  color: var(--text-light);
  font-size: .9375rem;
  line-height: 1.6;
  text-decoration: none;
  transition: border-color .2s ease, color .2s ease, background .2s ease;
}

.page-contact .ct-quick__list a:hover,
.page-contact .ct-quick__list a:focus-visible {
  border-color: var(--grass);
  background: rgba(31, 214, 95, .1);
  color: var(--grass);
}

.page-contact .ct-quick__arrow {
  flex: 0 0 auto;
  font-family: var(--font-num);
  color: var(--gold);
}

.page-contact .ct-quick__foot {
  margin: clamp(1.25rem, 3vw, 1.75rem) 0 0;
  font-size: .875rem;
  line-height: 1.75;
  color: var(--text-dim);
}

/* ---------- 页尾备案细条 ---------- */
.page-contact .ct-legal {
  padding: .95rem 0;
  background: var(--ink-2);
  border-top: 1px solid var(--gold-line);
}

.page-contact .ct-legal__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: .4rem 1.25rem;
}

.page-contact .ct-legal__brand,
.page-contact .ct-legal__icp {
  margin: 0;
  font-size: .8125rem;
  color: var(--text-dim);
  letter-spacing: .04em;
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-contact .ct-quick__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 720px) {
  .page-contact .ct-hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .ct-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .ct-write__inner {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
    align-items: center;
  }

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

@media (min-width: 1000px) {
  .page-contact .ct-quick__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .ct-sla__row {
    flex-wrap: nowrap;
  }

  .page-contact .ct-sla__text {
    flex: 1 1 auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-copy,
  .page-contact .ct-card__value--tel,
  .page-contact .ct-coop__item,
  .page-contact .ct-quick__list a {
    transition: none;
  }
}