.page-contact {
  --ct-shadow: 8px 8px 0 var(--scale);
  --ct-shadow-lift: 10px 10px 0 var(--scale);
  background: var(--ink);
  color: var(--white);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  position: relative;
  padding-block: clamp(2.25rem, 6vw, 4.5rem) clamp(1.75rem, 4vw, 3rem);
  overflow: hidden;
}

.page-contact .ct-hero::before {
  content: "";
  position: absolute;
  top: -25%;
  right: -18%;
  width: min(62vw, 640px);
  aspect-ratio: 1;
  background: var(--grad-jump);
  opacity: 0.26;
  transform: rotate(3.5deg);
  pointer-events: none;
}

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

.page-contact .ct-hero__kicker {
  margin: clamp(1.25rem, 3vw, 2rem) 0 0;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .ct-hero__title {
  margin: 0.5rem 0 0;
  font-family: var(--sans);
  font-weight: 900;
  font-size: clamp(2.2rem, 8vw, 5.2rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--white);
  max-width: 20ch;
}

.page-contact .ct-hero__lead {
  max-width: var(--content);
  margin: clamp(1rem, 2.5vw, 1.5rem) 0 0;
  font-size: clamp(1rem, 1.6vw, 1.0625rem);
  line-height: 1.8;
  color: var(--mute);
}

.page-contact .ct-hero__jump {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: clamp(1.25rem, 3vw, 2rem);
}

.page-contact .ct-jump {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 0.95rem;
  border: var(--bw) solid var(--scale);
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--white);
  text-decoration: none;
  transition: border-color 0.25s var(--ease), background-color 0.25s var(--ease), color 0.25s var(--ease);
}

.page-contact .ct-jump__no {
  color: var(--cyan);
  font-weight: 700;
}

.page-contact .ct-jump:hover,
.page-contact .ct-jump:focus-visible {
  border-color: var(--cyan);
  background: rgba(0, 224, 208, 0.1);
  color: var(--cyan);
}

/* ---------- 章节头 ---------- */
.page-contact .ct-sec-head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  margin-bottom: clamp(1.5rem, 4vw, 2.5rem);
}

.page-contact .ct-sec-head__body {
  min-width: 0;
}

.page-contact .ct-sec-head .section__title {
  margin-top: 0.35rem;
}

@media (min-width: 700px) {
  .page-contact .ct-sec-head {
    grid-template-columns: auto minmax(0, 1fr);
    gap: clamp(1rem, 3vw, 2.25rem);
    align-items: start;
  }
}

/* ---------- 联系卡片 ---------- */
.page-contact .ct-channels__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1rem, 2.5vw, 1.75rem);
}

.page-contact .ct-card {
  position: relative;
  border: var(--bw) solid var(--scale);
  background: var(--panel);
  box-shadow: var(--ct-shadow);
  padding: clamp(1.25rem, 3.5vw, 2.25rem);
}

.page-contact .ct-card__flag {
  position: absolute;
  top: 0;
  right: 0;
  padding: 0.42rem 1rem 0.42rem 1.15rem;
  background: var(--orange);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  clip-path: polygon(12px 0, 100% 0, 100% 100%, 0 100%);
}

.page-contact .ct-channels__list {
  margin: 0;
  padding: 0;
  display: grid;
}

.page-contact .ct-channel {
  padding: 1.05rem 0;
  border-top: 1px solid var(--scale);
}

.page-contact .ct-channel:first-child {
  border-top: none;
  padding-top: 0.25rem;
}

.page-contact .ct-channel:last-child {
  padding-bottom: 0;
}

.page-contact .ct-channel__label {
  margin: 0 0 0.4rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .ct-channel__value {
  margin: 0 0 0.4rem;
  font-family: var(--mono);
  font-size: clamp(1rem, 2.1vw, 1.3rem);
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: 0.01em;
  color: var(--white);
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}

.page-contact .ct-channel__hint {
  margin: 0;
  max-width: 60ch;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--mute);
}

.page-contact .ct-channels__media {
  margin: 0;
  border: var(--bw) solid var(--scale);
  background: var(--panel);
  box-shadow: var(--ct-shadow);
  overflow: hidden;
}

.page-contact .ct-channels__media img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 200px;
  max-height: 420px;
  object-fit: cover;
}

@media (min-width: 940px) {
  .page-contact .ct-channels__grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    align-items: stretch;
  }
}

/* ---------- 回复时段 ---------- */
.page-contact .ct-hours__band {
  background: var(--panel);
  border-top: var(--bw) solid var(--scale);
  border-right: var(--bw) solid var(--scale);
  border-bottom: var(--bw) solid var(--scale);
  border-left: 6px solid var(--cyan);
  padding: clamp(1.25rem, 3.5vw, 2.25rem);
}

.page-contact .ct-hours__tag {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mute);
}

.page-contact .ct-hours__big {
  margin: 0.55rem 0 0;
  font-family: var(--mono);
  font-size: clamp(1.5rem, 5.5vw, 3rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--green);
  font-variant-numeric: tabular-nums;
}

.page-contact .ct-hours__sub {
  margin: 0.7rem 0 0;
  max-width: 56ch;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--mute);
}

.page-contact .ct-hours__cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.25rem, 3vw, 2rem);
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
}

.page-contact .ct-hours__col-title {
  margin: 0 0 0.5rem;
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--white);
}

.page-contact .ct-hours__col p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--mute);
}

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

/* ---------- 场景 ---------- */
.page-contact .ct-scenes {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(0.9rem, 2.2vw, 1.5rem);
}

.page-contact .ct-scene {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 1.2rem 1.15rem 1.35rem;
  border: var(--bw) solid var(--scale);
  background: var(--panel);
  box-shadow: 6px 6px 0 var(--scale);
  transition: border-color 0.28s var(--ease), box-shadow 0.28s var(--ease), transform 0.28s var(--ease);
}

.page-contact .ct-scene:hover,
.page-contact .ct-scene:focus-within {
  border-color: var(--cyan);
  box-shadow: inset 4px 0 0 var(--cyan), var(--ct-shadow-lift);
  transform: translateY(-2px);
}

.page-contact .ct-scene__no {
  display: grid;
  place-items: center;
  width: 2.2rem;
  height: 2.2rem;
  border: var(--bw) solid var(--scale);
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--cyan);
  background: transparent;
  transition: background-color 0.28s var(--ease), color 0.28s var(--ease), border-color 0.28s var(--ease);
}

.page-contact .ct-scene:hover .ct-scene__no,
.page-contact .ct-scene:focus-within .ct-scene__no {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
}

.page-contact .ct-scene__title {
  margin: 0.35rem 0 0;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--white);
}

.page-contact .ct-scene__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.78;
  color: var(--mute);
}

.page-contact .ct-scene__tip {
  margin: auto 0 0;
  padding-top: 0.7rem;
  border-top: 1px solid var(--scale);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--orange);
}

@media (min-width: 680px) {
  .page-contact .ct-scenes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1120px) {
  .page-contact .ct-scenes {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 来信要点 ---------- */
.page-contact .ct-brief__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--scale);
}

.page-contact .ct-brief__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(1rem, 3vw, 2rem);
  align-items: start;
  padding: clamp(1.1rem, 3vw, 1.6rem) 0;
  border-bottom: 1px solid var(--scale);
  transition: background-color 0.25s var(--ease);
}

.page-contact .ct-brief__item:hover {
  background: rgba(0, 224, 208, 0.05);
}

.page-contact .ct-brief__no {
  font-family: var(--mono);
  font-size: clamp(1.25rem, 3vw, 2rem);
  font-weight: 700;
  line-height: 1;
  color: var(--scale);
  letter-spacing: -0.02em;
  transition: color 0.25s var(--ease);
}

.page-contact .ct-brief__item:hover .ct-brief__no {
  color: var(--cyan);
}

.page-contact .ct-brief__title {
  margin: 0 0 0.35rem;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--white);
}

.page-contact .ct-brief__body p {
  margin: 0;
  max-width: var(--content);
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--mute);
}

/* ---------- 合作 ---------- */
.page-contact .ct-partners {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1rem, 2.5vw, 1.5rem);
}

.page-contact .ct-partner {
  position: relative;
  padding: 1.5rem 1.35rem 1.6rem;
  border: var(--bw) solid var(--scale);
  background: var(--panel);
  box-shadow: 6px 6px 0 var(--scale);
  overflow: hidden;
  transition: border-color 0.28s var(--ease), transform 0.28s var(--ease);
}

.page-contact .ct-partner::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--cyan);
  transform: scaleX(1);
  transform-origin: top;
}

.page-contact .ct-partner--editor::after {
  background: var(--green);
}

.page-contact .ct-partner--community::after {
  background: var(--orange);
}

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

.page-contact .ct-partner__tag {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .ct-partner--editor .ct-partner__tag {
  color: var(--green);
}

.page-contact .ct-partner--community .ct-partner__tag {
  color: var(--orange);
}

.page-contact .ct-partner__title {
  margin: 0.6rem 0 0.55rem;
  font-size: clamp(1.125rem, 2.4vw, 1.375rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-contact .ct-partner__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--mute);
}

.page-contact .ct-partner__note {
  margin: clamp(1.5rem, 4vw, 2.25rem) 0 0;
  padding: 0.9rem 1.1rem;
  border-left: 4px solid var(--orange);
  background: rgba(255, 138, 61, 0.08);
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--white);
  max-width: var(--content);
}

@media (min-width: 820px) {
  .page-contact .ct-partners {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 收尾影像 ---------- */
.page-contact .ct-closing {
  margin-top: clamp(2.5rem, 6vw, 4.5rem);
  border-top: var(--bw) solid var(--scale);
  border-bottom: var(--bw) solid var(--scale);
}

.page-contact .ct-closing__img {
  display: block;
  width: 100%;
  height: clamp(180px, 32vw, 340px);
  object-fit: cover;
}

/* ---------- 备案条 ---------- */
.page-contact .ct-legal {
  padding-block: clamp(1rem, 2.5vw, 1.5rem);
  background: var(--panel);
}

.page-contact .ct-legal__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  align-items: baseline;
  justify-content: space-between;
}

.page-contact .ct-legal__brand,
.page-contact .ct-legal__icp {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--mute);
}

@media (max-width: 520px) {
  .page-contact .ct-hero__title {
    max-width: none;
  }

  .page-contact .ct-legal__inner {
    justify-content: flex-start;
  }

  .page-contact .ct-brief__item {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-scene,
  .page-contact .ct-partner,
  .page-contact .ct-jump,
  .page-contact .ct-scene__no {
    transition: none;
  }

  .page-contact .ct-scene:hover,
  .page-contact .ct-partner:hover {
    transform: none;
  }
}