.page-contact {
  --ct-gap: clamp(20px, 3vw, 34px);
  --ct-pad: clamp(22px, 2.6vw, 34px);
  --ct-soft: rgba(14, 23, 48, .72);
}

.page-contact .ct-sep {
  color: var(--muted);
}

/* ---------- 首屏：左介绍 右联系卡 ---------- */
.page-contact .ct-hero {
  padding: clamp(22px, 3.6vw, 48px) 0 clamp(36px, 6vw, 74px);
}

.page-contact .ct-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--ct-gap);
}

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

.page-contact .ct-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-head);
  font-size: clamp(30px, 5.2vw, 52px);
  line-height: 1.1;
  letter-spacing: -.02em;
  color: #fff;
  max-width: 19ch;
}

.page-contact .ct-lead {
  margin: clamp(16px, 2vw, 22px) 0 0;
  max-width: 58ch;
  font-size: clamp(15px, 1.15vw, 17px);
  line-height: 1.85;
  color: var(--silver);
}

.page-contact .ct-quick {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 18px;
  margin: clamp(22px, 3vw, 30px) 0 0;
  padding: 0;
}

.page-contact .ct-quick > div {
  border-top: 1px solid var(--line-strong);
  padding-top: 12px;
  min-width: 0;
}

.page-contact .ct-quick dt {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--muted);
}

.page-contact .ct-quick dd {
  margin: 7px 0 0;
  font-family: var(--font-head);
  font-size: clamp(16px, 1.6vw, 20px);
  font-weight: 700;
  color: #fff;
}

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

.page-contact .ct-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 30px);
}

/* ---------- 联系卡 ---------- */
.page-contact .ct-card {
  position: relative;
  overflow: hidden;
  padding: var(--ct-pad);
  border-radius: var(--r-xl);
  border: 1px solid var(--line-strong);
  background: linear-gradient(158deg, var(--cabin-hi), var(--cabin) 64%);
  box-shadow: var(--shadow-card);
}

.page-contact .ct-card::before {
  content: "";
  position: absolute;
  top: -46%;
  right: -22%;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(41, 224, 200, .24), transparent 68%);
  pointer-events: none;
}

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

.page-contact .ct-card__title {
  position: relative;
  margin: 14px 0 4px;
  font-family: var(--font-head);
  font-size: clamp(19px, 1.9vw, 24px);
  color: #fff;
  letter-spacing: -.01em;
}

.page-contact .ct-row {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 8px 12px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}

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

.page-contact .ct-row__k {
  grid-column: 1 / -1;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--muted);
}

.page-contact .ct-row__v {
  min-width: 0;
  font-size: 15px;
  line-height: 1.55;
  color: #fff;
  overflow-wrap: anywhere;
}

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

.page-contact .ct-toggle {
  justify-self: start;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid rgba(255, 122, 61, .45);
  background: rgba(255, 122, 61, .1);
  color: var(--amber);
  font-family: var(--font-head);
  font-size: 13px;
  cursor: pointer;
  transition: background .25s var(--ease), border-color .25s var(--ease);
}

.page-contact .ct-toggle:hover {
  background: rgba(255, 122, 61, .2);
  border-color: rgba(255, 122, 61, .8);
}

.page-contact .ct-address {
  margin: 4px 0 0;
  color: var(--silver);
  font-size: 14.5px;
}

.page-contact .ct-card__note {
  position: relative;
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px dashed var(--line-strong);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 区块骨架 ---------- */
.page-contact .ct-section {
  padding: clamp(40px, 6vw, 82px) 0;
}

.page-contact .ct-band {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 90% at 50% 0%, rgba(122, 108, 255, .1), transparent 64%),
    linear-gradient(180deg, rgba(14, 23, 48, .62), rgba(7, 11, 24, 0));
}

.page-contact .ct-head {
  max-width: 72ch;
}

.page-contact .ct-head h2,
.page-contact .ct-channels__body h2,
.page-contact .ct-archive__body h2,
.page-contact .ct-next__intro h2 {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-size: clamp(23px, 3.2vw, 36px);
  line-height: 1.16;
  letter-spacing: -.015em;
  color: #fff;
}

.page-contact .ct-head p,
.page-contact .ct-sub {
  margin: 14px 0 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--silver);
}

/* ---------- 联系通道 ---------- */
.page-contact .ct-channels__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 46px);
  align-items: center;
}

.page-contact .ct-wave {
  margin: 0;
  border-radius: var(--r-xl);
  border: 1px solid var(--line-strong);
  background: var(--cabin);
  overflow: hidden;
}

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

.page-contact .ct-tracks {
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .ct-track {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  padding: clamp(16px, 2vw, 22px);
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: var(--ct-soft);
  transition: border-color .3s var(--ease), transform .3s var(--ease);
}

.page-contact .ct-track:hover {
  border-color: rgba(41, 224, 200, .48);
  transform: translateY(-2px);
}

.page-contact .ct-track__no {
  padding-top: 3px;
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--pulse);
}

.page-contact .ct-track__name {
  margin: 0;
  font-family: var(--font-head);
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.5;
  color: #fff;
}

.page-contact .ct-track__name .mono {
  display: inline-block;
  font-size: 14px;
  color: var(--pulse);
  overflow-wrap: anywhere;
}

.page-contact .ct-track__desc {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--silver);
}

/* ---------- 服务时间 ---------- */
.page-contact .ct-shifts {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-contact .ct-shift {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px dashed var(--line-strong);
}

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

.page-contact .ct-shift__time {
  font-size: 13.5px;
  letter-spacing: .05em;
  color: var(--amber);
}

.page-contact .ct-shift__text {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--silver);
}

/* ---------- 版本归档 ---------- */
.page-contact .ct-archive {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 46px);
  align-items: start;
}

.page-contact .ct-template {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 14px;
  margin-top: clamp(20px, 3vw, 28px);
  padding: clamp(16px, 2vw, 22px);
  border-radius: var(--r-md);
  border: 1px dashed rgba(255, 122, 61, .48);
  background: rgba(255, 122, 61, .075);
}

.page-contact .ct-template__label {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--amber);
}

.page-contact .ct-template__code {
  padding: 8px 14px;
  border-radius: var(--r-sm);
  border: 1px solid var(--line);
  background: rgba(7, 11, 24, .68);
  font-size: clamp(15px, 1.5vw, 19px);
  color: #fff;
  letter-spacing: .02em;
}

.page-contact .ct-tips {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .ct-tips li {
  position: relative;
  padding-left: 22px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--silver);
}

.page-contact .ct-tips li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 9px;
  height: 9px;
  border-radius: 2px;
  background: var(--pulse);
  box-shadow: 0 0 12px rgba(41, 224, 200, .55);
}

.page-contact .ct-archive__link {
  margin: clamp(20px, 3vw, 28px) 0 0;
}

.page-contact .ct-archive__figure {
  margin: 0;
  border-radius: var(--r-xl);
  border: 1px solid var(--line-strong);
  background: var(--cabin);
  overflow: hidden;
}

/* ---------- 合作方向 ---------- */
.page-contact .ct-coop {
  margin-top: clamp(22px, 3vw, 32px);
  display: grid;
  gap: 12px;
}

.page-contact .ct-coop__item {
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: rgba(14, 23, 48, .66);
  overflow: hidden;
  transition: border-color .3s var(--ease);
}

.page-contact .ct-coop__item:has(.ct-coop__btn[aria-expanded="true"]) {
  border-color: rgba(41, 224, 200, .44);
}

.page-contact .ct-coop__btn {
  width: 100%;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 16px;
  padding: clamp(16px, 2vw, 22px);
  border: 0;
  background: transparent;
  font: inherit;
  text-align: left;
  color: inherit;
  cursor: pointer;
  transition: background .25s var(--ease);
}

.page-contact .ct-coop__btn:hover {
  background: rgba(41, 224, 200, .06);
}

.page-contact .ct-coop__no {
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--violet);
}

.page-contact .ct-coop__name {
  font-family: var(--font-head);
  font-size: 16.5px;
  font-weight: 700;
  color: #fff;
}

.page-contact .ct-coop__hint {
  font-size: 12px;
  letter-spacing: .08em;
  white-space: nowrap;
  color: var(--muted);
}

.page-contact .ct-coop__btn[aria-expanded="true"] .ct-coop__hint {
  color: var(--pulse);
}

.page-contact .ct-coop__panel {
  padding: 0 clamp(16px, 2vw, 22px) clamp(18px, 2vw, 22px);
}

.page-contact .ct-coop__panel p {
  margin: 0;
  max-width: 68ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--silver);
}

/* ---------- 收尾 ---------- */
.page-contact .ct-next__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 36px);
  align-items: start;
}

.page-contact .ct-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-contact .ct-next__card {
  padding: var(--ct-pad);
  border-radius: var(--r-xl);
}

.page-contact .ct-next__card h3 {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-size: clamp(18px, 1.8vw, 22px);
  color: var(--inkbrown);
  letter-spacing: -.01em;
}

.page-contact .ct-next__card p {
  margin: 0 0 18px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--inkbrown);
}

.page-contact .ct-next__card .mono {
  font-size: 14px;
  overflow-wrap: anywhere;
}

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

  .page-contact .ct-shift {
    grid-template-columns: 158px minmax(0, 1fr);
    gap: 4px 22px;
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-contact .ct-channels__grid {
    grid-template-columns: minmax(0, .88fr) minmax(0, 1.12fr);
  }

  .page-contact .ct-next__grid {
    grid-template-columns: minmax(0, 1.28fr) minmax(0, .72fr);
  }
}

@media (min-width: 940px) {
  .page-contact .ct-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(320px, .92fr);
    align-items: start;
  }

  .page-contact .ct-hero__side {
    position: sticky;
    top: 122px;
  }

  .page-contact .ct-archive {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-track,
  .page-contact .ct-toggle,
  .page-contact .ct-coop__btn,
  .page-contact .ct-coop__item {
    transition: none;
  }

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