.page-contact {
  --ct-hair: rgba(215, 225, 234, .16);
  --ct-hair-soft: rgba(215, 225, 234, .09);
  background: var(--steel);
  color: var(--fg);
  overflow-x: clip;
}

.page-contact .ct-head {
  max-width: 62ch;
}

.page-contact .ct-head__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.55rem, 3.6vw, 2.35rem);
  line-height: 1.14;
  letter-spacing: -.01em;
  margin: .55rem 0 0;
  color: var(--paper);
}

.page-contact .ct-head__note {
  margin: .7rem 0 0;
  font-size: .94rem;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  position: relative;
  padding-block: clamp(1.75rem, 4.5vw, 3rem) clamp(2.5rem, 6vw, 4.25rem);
  background:
    radial-gradient(120% 95% at 8% 0%, rgba(255, 106, 42, .16), transparent 58%),
    linear-gradient(180deg, var(--command) 0%, var(--steel) 94%);
  border-bottom: 1px solid var(--ct-hair);
}

.page-contact .ct-hero__inner {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3.25rem);
  align-items: start;
}

.page-contact .ct-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 6.4vw, 3.5rem);
  line-height: 1.05;
  letter-spacing: -.015em;
  margin: .6rem 0 0;
  color: var(--paper);
}

.page-contact .ct-hero__lead {
  margin: 1.1rem 0 0;
  max-width: 48ch;
  font-size: 1rem;
  line-height: 1.78;
  color: rgba(215, 225, 234, .84);
}

.page-contact .ct-hero__facts {
  margin: 1.7rem 0 0;
  border-top: 1px solid var(--ct-hair);
}

.page-contact .ct-hero__fact {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .3rem 1.1rem;
  padding: .62rem 0;
  border-bottom: 1px solid var(--ct-hair-soft);
}

.page-contact .ct-hero__fact dt {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
  min-width: 7rem;
}

.page-contact .ct-hero__fact dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .95rem;
  color: var(--paper);
  word-break: break-word;
}

.page-contact .ct-hero__actions {
  margin-top: 1.6rem;
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
}

.page-contact .ct-hero__media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--ct-hair);
}

.page-contact .ct-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(215, 225, 234, .08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(215, 225, 234, .08) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .85), transparent 82%);
}

.page-contact .media-frame__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(.7) contrast(1.05);
}

/* ---------- 联系渠道 ---------- */
.page-contact .ct-channels {
  padding-block: clamp(2.5rem, 6vw, 4rem);
  background: var(--steel);
}

.page-contact .ct-channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: clamp(1.6rem, 3.5vw, 2.4rem);
}

.page-contact .ct-channel {
  position: relative;
  padding: 1.5rem 1.35rem 1.6rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--ct-hair);
  background: linear-gradient(180deg, rgba(18, 58, 90, .72), rgba(11, 31, 51, .8));
  overflow: hidden;
}

.page-contact .ct-channel::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--ct-accent), transparent 88%);
}

.page-contact .ct-channel--phone { --ct-accent: var(--signal); }
.page-contact .ct-channel--mail { --ct-accent: var(--link); }
.page-contact .ct-channel--desk { --ct-accent: var(--green); }

.page-contact .ct-channel__idx {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--ct-accent);
}

.page-contact .ct-channel__title {
  margin: .6rem 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--paper);
}

.page-contact .ct-channel__value {
  margin: .5rem 0 0;
  font-family: var(--font-mono);
  font-size: .95rem;
  line-height: 1.5;
  color: var(--silver);
  word-break: break-word;
}

.page-contact .ct-channel__note {
  margin: .9rem 0 0;
  font-size: .9rem;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 反馈路径 ---------- */
.page-contact .ct-feedback {
  padding-block: clamp(2.5rem, 6vw, 4rem);
  background: var(--steel-deep);
  border-block: 1px solid var(--ct-hair);
}

.page-contact .ct-switch {
  position: relative;
  margin-top: clamp(1.5rem, 3.5vw, 2.2rem);
}

.page-contact .ct-switch__input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-contact .ct-switch__pills {
  display: flex;
  flex-wrap: wrap;
  gap: .55rem;
}

.page-contact .ct-pill {
  display: inline-flex;
  align-items: center;
  padding: .58rem 1.1rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--ct-hair);
  background: rgba(18, 58, 90, .45);
  color: var(--silver);
  font-size: .9rem;
  line-height: 1.2;
  cursor: pointer;
  transition: background .25s var(--ease), border-color .25s var(--ease), color .25s var(--ease);
}

.page-contact .ct-pill:hover {
  border-color: var(--hair-strong);
  background: rgba(18, 58, 90, .7);
}

.page-contact .ct-switch__input:nth-of-type(1):checked ~ .ct-switch__pills .ct-pill:nth-child(1),
.page-contact .ct-switch__input:nth-of-type(2):checked ~ .ct-switch__pills .ct-pill:nth-child(2),
.page-contact .ct-switch__input:nth-of-type(3):checked ~ .ct-switch__pills .ct-pill:nth-child(3),
.page-contact .ct-switch__input:nth-of-type(4):checked ~ .ct-switch__pills .ct-pill:nth-child(4) {
  background: var(--signal);
  border-color: var(--signal);
  color: var(--steel-deep);
  font-weight: 600;
  box-shadow: 0 12px 28px -18px var(--signal);
}

.page-contact .ct-switch__input:nth-of-type(1):focus-visible ~ .ct-switch__pills .ct-pill:nth-child(1),
.page-contact .ct-switch__input:nth-of-type(2):focus-visible ~ .ct-switch__pills .ct-pill:nth-child(2),
.page-contact .ct-switch__input:nth-of-type(3):focus-visible ~ .ct-switch__pills .ct-pill:nth-child(3),
.page-contact .ct-switch__input:nth-of-type(4):focus-visible ~ .ct-switch__pills .ct-pill:nth-child(4) {
  outline: 2px solid var(--link);
  outline-offset: 3px;
}

.page-contact .ct-panel {
  display: none;
  margin-top: 1.4rem;
  padding: 1.45rem 1.3rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--ct-hair);
  background: rgba(18, 58, 90, .42);
}

.page-contact .ct-switch__input:nth-of-type(1):checked ~ .ct-switch__panels .ct-panel:nth-child(1),
.page-contact .ct-switch__input:nth-of-type(2):checked ~ .ct-switch__panels .ct-panel:nth-child(2),
.page-contact .ct-switch__input:nth-of-type(3):checked ~ .ct-switch__panels .ct-panel:nth-child(3),
.page-contact .ct-switch__input:nth-of-type(4):checked ~ .ct-switch__panels .ct-panel:nth-child(4) {
  display: block;
}

.page-contact .ct-panel__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.22rem;
  color: var(--paper);
}

.page-contact .ct-panel__subject {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .45rem .85rem;
  margin: 1rem 0 0;
  padding: .65rem .85rem;
  border-radius: var(--radius-md);
  border: 1px dashed rgba(255, 106, 42, .42);
  background: var(--signal-soft);
}

.page-contact .ct-panel__subject span {
  font-family: var(--font-mono);
  font-size: .66rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--signal);
}

.page-contact .ct-panel__subject code {
  font-family: var(--font-mono);
  font-size: .87rem;
  color: var(--paper);
  word-break: break-word;
}

.page-contact .ct-panel__list {
  margin: 1.1rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .65rem;
}

.page-contact .ct-panel__list li {
  position: relative;
  padding-left: 1.35rem;
  font-size: .92rem;
  line-height: 1.72;
  color: rgba(215, 225, 234, .82);
}

.page-contact .ct-panel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .66em;
  width: .42rem;
  height: .42rem;
  border-radius: 2px;
  background: var(--green);
}

/* ---------- 地址坐标 ---------- */
.page-contact .ct-address {
  padding-block: clamp(2.5rem, 6vw, 4rem);
  background: var(--steel);
}

.page-contact .ct-address__inner {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
  align-items: center;
}

.page-contact .ct-address__lead {
  margin: 1rem 0 0;
  max-width: 52ch;
  font-size: .96rem;
  line-height: 1.78;
  color: rgba(215, 225, 234, .84);
}

.page-contact .ct-coord {
  margin: 1.5rem 0 0;
  display: grid;
  gap: .1rem;
  border-top: 1px solid var(--ct-hair);
}

.page-contact .ct-coord__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .3rem 1.1rem;
  padding: .72rem 0;
  border-bottom: 1px solid var(--ct-hair-soft);
}

.page-contact .ct-coord__row dt {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
  min-width: 6.5rem;
}

.page-contact .ct-coord__row dd {
  margin: 0;
  font-size: .95rem;
  color: var(--silver);
  word-break: break-word;
}

.page-contact .ct-address__media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--ct-hair);
}

/* ---------- 合作咨询 ---------- */
.page-contact .ct-coop {
  padding-block: clamp(2.5rem, 6vw, 4rem);
  background: var(--command);
}

.page-contact .ct-coop__list {
  margin-top: clamp(1.6rem, 3.5vw, 2.3rem);
  border-top: 1px solid var(--ct-hair);
}

.page-contact .ct-coop__item {
  display: grid;
  gap: .75rem;
  padding: 1.45rem 0;
  border-bottom: 1px solid var(--ct-hair);
}

.page-contact .ct-coop__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .2em;
  color: var(--signal);
}

.page-contact .ct-coop__title {
  margin: .35rem 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.22rem;
  color: var(--paper);
}

.page-contact .ct-coop__body p {
  margin: 0;
  font-size: .94rem;
  line-height: 1.76;
  color: rgba(215, 225, 234, .84);
}

.page-contact .ct-coop__hint {
  margin-top: .7rem;
  font-size: .85rem;
  color: var(--muted);
}

.page-contact .ct-coop__hint span {
  display: inline-block;
  margin-right: .55rem;
  padding: .16rem .55rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(242, 184, 75, .45);
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .1em;
}

/* ---------- 收束 ---------- */
.page-contact .ct-close {
  padding-block: clamp(2.5rem, 6vw, 4rem);
  background: var(--paper);
  color: var(--ink);
}

.page-contact .ct-close__inner {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
  align-items: start;
}

.page-contact .ct-close .ct-head__title {
  color: var(--ink);
}

.page-contact .ct-close .ct-head .eyebrow {
  color: var(--signal);
}

.page-contact .ct-close__lead {
  margin: 1rem 0 0;
  max-width: 54ch;
  font-size: .98rem;
  line-height: 1.8;
  color: rgba(5, 10, 15, .74);
}

.page-contact .ct-close__defs {
  margin: 1.5rem 0 0;
  display: grid;
  gap: .1rem;
  border-top: 1px solid rgba(5, 10, 15, .12);
}

.page-contact .ct-close__def {
  padding: .85rem 0;
  border-bottom: 1px solid rgba(5, 10, 15, .1);
}

.page-contact .ct-close__def dt {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--command);
}

.page-contact .ct-close__def dd {
  margin: .4rem 0 0;
  font-size: .93rem;
  line-height: 1.76;
  color: rgba(5, 10, 15, .76);
}

.page-contact .ct-close__aside {
  padding: 1.4rem 1.3rem;
  border-radius: var(--radius-md);
  background: #fff;
  border: 1px solid rgba(5, 10, 15, .1);
  box-shadow: 0 24px 48px -36px rgba(5, 10, 15, .5);
}

.page-contact .ct-close__aside-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--ink);
}

.page-contact .ct-close__links {
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .1rem;
}

.page-contact .ct-close__links li {
  border-bottom: 1px solid rgba(5, 10, 15, .08);
}

.page-contact .ct-close__links a {
  display: block;
  padding: .68rem 0;
  font-size: .92rem;
  line-height: 1.5;
  color: var(--command);
  text-decoration: none;
  transition: color .2s var(--ease), padding-left .2s var(--ease);
}

.page-contact .ct-close__links a:hover {
  color: var(--signal);
  padding-left: .35rem;
}

.page-contact .ct-close__aside-note {
  margin: 1.1rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid rgba(5, 10, 15, .1);
  font-family: var(--font-mono);
  font-size: .78rem;
  line-height: 1.7;
  color: rgba(5, 10, 15, .6);
  word-break: break-word;
}

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

@media (min-width: 900px) {
  .page-contact .ct-hero__inner {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    gap: clamp(2rem, 5vw, 4rem);
  }

  .page-contact .ct-hero__media {
    margin-top: 1.5rem;
  }

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

  .page-contact .ct-close__inner {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, .85fr);
  }
}

@media (min-width: 860px) {
  .page-contact .ct-coop__item {
    grid-template-columns: minmax(0, 15rem) minmax(0, 1fr);
    gap: 2rem;
    align-items: start;
  }

  .page-contact .ct-coop__num {
    grid-column: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-pill,
  .page-contact .ct-close__links a {
    transition: none;
  }
}
</main>