.page-contact {
  --ct-block: clamp(3.25rem, 8vw, 6rem);
  --ct-pad: clamp(1.25rem, 4vw, 2.75rem);
  background:
    radial-gradient(900px 520px at 88% -6%, rgba(0, 229, 255, 0.10), transparent 62%),
    radial-gradient(720px 460px at -10% 44%, rgba(255, 107, 53, 0.07), transparent 60%),
    var(--night);
  color: var(--ice);
  overflow-x: clip;
  padding-bottom: clamp(3.5rem, 9vw, 7rem);
}

.page-contact .wrap {
  position: relative;
}

.page-contact h1 {
  font-size: var(--step-4);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -0.035em;
  margin: 0 0 1.1rem;
  color: var(--ice);
  max-width: 16ch;
}

.page-contact h2 {
  font-size: var(--step-3);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.025em;
  margin: 0 0 0.9rem;
  color: var(--ice);
}

.page-contact h3 {
  font-size: var(--step-1);
  font-weight: 700;
  line-height: 1.35;
  margin: 0 0 0.7rem;
  color: var(--ice);
}

.page-contact p {
  margin: 0 0 0.9rem;
  line-height: 1.78;
  color: var(--silver);
}

.page-contact p:last-child {
  margin-bottom: 0;
}

.page-contact .section-label {
  color: var(--teal);
  letter-spacing: 0.22em;
  font-size: var(--step--1);
  text-transform: uppercase;
  margin: 0 0 0.75rem;
}

.page-contact .lede {
  max-width: 34ch;
  font-size: var(--step-1);
  line-height: 1.72;
  color: var(--silver);
}

/* ---------- 首屏 ---------- */

.page-contact .ct-hero {
  padding: clamp(2.25rem, 6vw, 4.5rem) 0 clamp(2.5rem, 6vw, 4rem);
}

.page-contact .ct-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 3.25rem);
}

.page-contact .ct-hero .breadcrumbs {
  margin-bottom: 1.5rem;
}

.page-contact .ct-hero .eyebrow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.85rem;
  margin: 0 0 1.15rem;
  font-size: var(--step--1);
  color: var(--silver);
}

.page-contact .ct-hero__aside {
  align-self: end;
  border-left: 1px solid var(--line-strong);
  padding-left: clamp(1rem, 3vw, 1.75rem);
}

.page-contact .ct-aside__kicker {
  font-size: var(--step--1);
  letter-spacing: 0.12em;
  color: var(--cyan);
  margin: 0 0 1rem;
}

.page-contact .ct-aside__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.page-contact .ct-aside__list li {
  display: grid;
  grid-template-columns: 2.1rem minmax(0, 1fr);
  gap: 0.4rem;
  font-size: var(--step--1);
  line-height: 1.7;
  color: var(--silver);
}

.page-contact .ct-aside__list .mono {
  color: var(--orange);
}

/* ---------- 公共节标题 ---------- */

.page-contact .ct-sec-head {
  max-width: 62ch;
  margin-bottom: clamp(1.75rem, 4vw, 2.75rem);
}

.page-contact .ct-sec-head p {
  max-width: 56ch;
}

/* ---------- 来函分流 ---------- */

.page-contact .ct-split {
  padding: var(--ct-block) 0;
}

.page-contact .ct-split__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.1rem, 3vw, 1.75rem);
}

.page-contact .ct-route {
  position: relative;
  padding: clamp(1.5rem, 4vw, 2.25rem);
  padding-left: clamp(1.75rem, 4.5vw, 2.75rem);
  border-radius: var(--radius-lg);
  background: var(--night-2);
  border: 1px solid var(--line);
  overflow: hidden;
  transition: background-color 0.24s var(--ease), border-color 0.24s var(--ease);
}

.page-contact .ct-route::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
}

.page-contact .ct-route--inquiry::before {
  background: var(--cyan);
}

.page-contact .ct-route--coop::before {
  background: var(--orange);
}

.page-contact .ct-route--inquiry:hover,
.page-contact .ct-route--inquiry:focus-within {
  background: #162f47;
  border-color: rgba(0, 229, 255, 0.35);
}

.page-contact .ct-route--coop:hover,
.page-contact .ct-route--coop:focus-within {
  background: #1a2b3e;
  border-color: rgba(255, 107, 53, 0.35);
}

.page-contact .ct-route__tag {
  font-size: var(--step--1);
  letter-spacing: 0.2em;
  margin: 0 0 0.85rem;
}

.page-contact .ct-route--inquiry .ct-route__tag {
  color: var(--cyan);
}

.page-contact .ct-route--coop .ct-route__tag {
  color: var(--orange);
}

.page-contact .ct-route__tier {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  margin: 1.25rem 0 0;
  padding-top: 1.1rem;
  border-top: 1px solid var(--line);
  font-size: var(--step--1);
  color: var(--silver);
  opacity: 0.82;
  transition: opacity 0.24s var(--ease);
}

.page-contact .ct-route:hover .ct-route__tier,
.page-contact .ct-route:focus-within .ct-route__tier {
  opacity: 1;
}

/* ---------- 联系方式卡片 ---------- */

.page-contact .ct-contact {
  padding: 0 0 var(--ct-block);
}

.page-contact .ct-card {
  position: relative;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-strong);
  background: var(--night-3);
  overflow: hidden;
  box-shadow: var(--shadow-lift);
}

.page-contact .ct-card__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.34;
  filter: saturate(0.85);
}

.page-contact .ct-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(158deg, rgba(11, 27, 43, 0.62) 6%, rgba(8, 19, 31, 0.94) 68%);
  pointer-events: none;
}

.page-contact .ct-card__inner {
  position: relative;
  z-index: 1;
  padding: var(--ct-pad);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.4rem, 4vw, 2rem);
}

.page-contact .ct-method__label {
  font-size: var(--step--1);
  letter-spacing: 0.18em;
  color: var(--silver);
  margin: 0 0 0.5rem;
}

.page-contact .ct-method__value {
  font-family: var(--font-mono);
  font-size: clamp(1.0625rem, 3.1vw, 1.6rem);
  line-height: 1.4;
  color: var(--ice);
  letter-spacing: -0.01em;
  overflow-wrap: anywhere;
  margin: 0;
  transition: color 0.24s var(--ease);
}

.page-contact .ct-method:hover .ct-method__value {
  color: var(--cyan);
}

.page-contact .ct-method__value--addr {
  font-size: clamp(1rem, 2.3vw, 1.25rem);
  line-height: 1.6;
}

.page-contact .ct-card__note {
  border-top: 1px solid var(--line);
  padding-top: 1.2rem;
  font-size: var(--step--1);
  line-height: 1.9;
  color: var(--silver);
  max-width: 64ch;
}

.page-contact .ct-card__aside {
  margin-top: 1.25rem;
  font-size: var(--step--1);
  line-height: 1.8;
  color: var(--teal);
  padding-left: 1rem;
  border-left: 2px solid var(--teal);
}

/* ---------- 合作来函要素 ---------- */

.page-contact .ct-brief {
  padding: 0 0 var(--ct-block);
}

.page-contact .ct-brief__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.75rem, 4vw, 3rem);
}

.page-contact .ct-brief__head p {
  max-width: 46ch;
}

.page-contact .ct-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.85rem;
}

.page-contact .ct-list li {
  position: relative;
  padding: 0.95rem 1.1rem 0.95rem 3.1rem;
  border-radius: var(--radius);
  background: rgba(18, 40, 61, 0.55);
  border: 1px solid var(--line);
  font-size: var(--step--1);
  line-height: 1.8;
  color: var(--silver);
  transition: background-color 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-contact .ct-list li:hover {
  background: rgba(18, 40, 61, 0.95);
  border-color: rgba(0, 229, 255, 0.3);
}

.page-contact .ct-list__num {
  position: absolute;
  left: 1.1rem;
  top: 1.05rem;
  display: grid;
  place-items: center;
  width: 1.35rem;
  height: 1.35rem;
  border: 1.5px solid var(--cyan);
  border-radius: 3px;
  font-size: 0.6875rem;
  line-height: 1;
  color: var(--cyan);
  transition: background-color 0.22s var(--ease), color 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-contact .ct-list li:hover .ct-list__num {
  background: var(--cyan);
  color: var(--night);
}

/* ---------- 回应节拍 ---------- */

.page-contact .ct-beat-sec {
  padding: 0 0 var(--ct-block);
}

.page-contact .ct-beat {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.5rem;
}

.page-contact .ct-beat__item {
  position: relative;
  padding-top: 1.4rem;
}

.page-contact .ct-beat__item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  height: 2px;
  width: clamp(1.75rem, 8vw, 3.5rem);
  background: var(--teal);
}

.page-contact .ct-beat__item--a::before {
  background: var(--teal);
}

.page-contact .ct-beat__item--b::before {
  background: var(--teal);
}

.page-contact .ct-beat__item--c::before {
  background: var(--orange);
}

.page-contact .ct-beat__item--d::before {
  background: var(--cyan);
}

.page-contact .ct-beat__idx {
  font-size: var(--step--1);
  letter-spacing: 0.1em;
  color: var(--silver);
  margin: 0 0 0.6rem;
}

.page-contact .ct-beat__item--c .ct-beat__idx {
  color: var(--orange);
}

.page-contact .ct-beat__item--d .ct-beat__idx {
  color: var(--cyan);
}

.page-contact .ct-beat__item p:last-child {
  font-size: var(--step--1);
  line-height: 1.82;
}

/* ---------- 地区与备案 ---------- */

.page-contact .ct-region {
  padding: 0 0 var(--ct-block);
}

.page-contact .ct-ridge {
  margin: 0 0 clamp(1.5rem, 4vw, 2.5rem);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--night-3);
}

.page-contact .ct-ridge img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 16 / 6;
}

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

.page-contact .ct-region__legal {
  font-size: var(--step-0);
  letter-spacing: 0.04em;
  color: var(--ice);
  padding: 0.85rem 1.1rem;
  border-radius: var(--radius);
  background: rgba(10, 110, 122, 0.22);
  border-left: 3px solid var(--cyan);
  margin: 0;
}

/* ---------- 相关说明 ---------- */

.page-contact .ct-follow {
  padding: 0;
}

.page-contact .ct-follow p {
  max-width: 54ch;
  margin-bottom: 1.5rem;
}

.page-contact .ct-follow__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
}

.page-contact .ct-follow__list li {
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-follow__list a {
  display: block;
  padding: 1rem 0.25rem;
  color: var(--silver);
  text-decoration: none;
  font-size: var(--step-0);
  line-height: 1.6;
  transition: color 0.22s var(--ease), padding-left 0.22s var(--ease);
}

.page-contact .ct-follow__list a:hover {
  color: var(--cyan);
  padding-left: 0.9rem;
}

.page-contact .ct-follow__list a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {
  .page-contact .ct-split__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }

  .page-contact .ct-split__grid .ct-route--coop {
    margin-top: clamp(1rem, 3vw, 2.25rem);
  }

  .page-contact .ct-card__inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .ct-method--wide,
  .page-contact .ct-card__note {
    grid-column: 1 / -1;
  }

  .page-contact .ct-follow__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(1.5rem, 4vw, 3rem);
  }
}

@media (min-width: 900px) {
  .page-contact .ct-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
  }

  .page-contact .ct-brief__inner {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-contact .ct-brief__head {
    position: sticky;
    top: calc(var(--topline-h) + 2rem);
  }

  .page-contact .ct-beat {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: clamp(1.25rem, 2.6vw, 2.25rem);
  }

  .page-contact .ct-list li {
    font-size: var(--step-0);
  }
}

@media (min-width: 1100px) {
  .page-contact .ct-card__inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 5fr);
    gap: clamp(1.75rem, 4vw, 3rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-route,
  .page-contact .ct-list li,
  .page-contact .ct-list__num,
  .page-contact .ct-route__tier,
  .page-contact .ct-method__value,
  .page-contact .ct-follow__list a {
    transition: none;
  }
}