.page-contact {
  --ct-hair: rgba(169, 183, 198, 0.18);
  --ct-line-soft: rgba(169, 183, 198, 0.12);
  --ct-paper-dim: rgba(43, 31, 23, 0.76);
  --ct-paper-faint: rgba(43, 31, 23, 0.55);
  background: var(--ink-900);
  color: var(--white);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  position: relative;
  isolation: isolate;
  padding: clamp(24px, 5vw, 52px) 0 clamp(38px, 6vw, 76px);
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(130% 100% at 88% -10%, rgba(45, 226, 230, 0.13), transparent 62%),
    radial-gradient(90% 80% at 0% 100%, rgba(255, 107, 53, 0.08), transparent 60%),
    linear-gradient(180deg, #071a2f 0%, #08203a 58%, #0a2544 100%);
}

.page-contact .ct-hero__grid {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(169, 183, 198, 0.075) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(169, 183, 198, 0.075) 1px, transparent 1px);
  background-size: 64px 64px, 64px 64px;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, rgba(0, 0, 0, 0.35) 62%, transparent 100%);
  mask-image: linear-gradient(180deg, #000 0%, rgba(0, 0, 0, 0.35) 62%, transparent 100%);
}

.page-contact .ct-hero__inner {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
}

.page-contact .ct-hero__crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--mist);
}

.page-contact .ct-hero__crumbs a {
  color: var(--mist);
  text-decoration: none;
}

.page-contact .ct-hero__crumbs a:hover,
.page-contact .ct-hero__crumbs a:focus-visible {
  color: var(--cyan);
}

.page-contact .ct-hero__crumbs [aria-current="page"] {
  color: var(--white);
}

.page-contact .ct-hero__copy .eyebrow {
  display: inline-block;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-contact .ct-hero h1 {
  margin: 14px 0 0;
  max-width: 15ch;
  font-family: var(--font-sans);
  font-size: clamp(30px, 6.4vw, 60px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.012em;
  color: var(--white);
}

.page-contact .ct-hero__lead {
  margin: 18px 0 0;
  max-width: 56ch;
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .ct-hero__quick {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(22px, 3vw, 30px);
}

.page-contact .ct-hero__media {
  position: relative;
  margin: 0;
  border: 1px solid var(--line-strong);
  background: #0a2138;
}

.page-contact .ct-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(200deg, rgba(45, 226, 230, 0.16), transparent 46%);
}

.page-contact .ct-hero__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.05);
}

/* ---------- 三个渠道 ---------- */
.page-contact .ct-channels {
  padding: clamp(34px, 6vw, 76px) 0 clamp(42px, 7vw, 92px);
  background: linear-gradient(180deg, #0a2544 0%, var(--ink-900) 100%);
}

.page-contact .ct-channels__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 18px;
  margin-bottom: clamp(22px, 3.5vw, 36px);
}

.page-contact .ct-channels__head h2 {
  margin: 0;
  flex: 1 1 auto;
  font-size: clamp(22px, 3.4vw, 34px);
  line-height: 1.24;
  color: var(--white);
}

.page-contact .ct-channels__note {
  margin: 0;
  flex: 1 1 100%;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .ct-channels .index-num {
  font-family: var(--font-mono);
  font-size: clamp(18px, 2.4vw, 24px);
  color: var(--cyan);
  letter-spacing: 0.06em;
}

.page-contact .ct-channels__grid {
  display: grid;
  gap: 16px;
}

.page-contact .ct-card {
  --ct-accent: var(--cyan);
  position: relative;
  padding: 24px 22px 22px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--ct-accent);
  background: linear-gradient(158deg, var(--panel) 0%, #091d31 100%);
  transition: transform 0.28s var(--ease), border-color 0.28s var(--ease),
    background 0.28s var(--ease);
}

.page-contact .ct-card::before,
.page-contact .ct-card::after {
  content: "";
  position: absolute;
  width: 11px;
  height: 11px;
  border: 1px solid var(--ct-accent);
  opacity: 0.75;
  pointer-events: none;
}

.page-contact .ct-card::before {
  top: -1px;
  right: -1px;
  border-left: 0;
  border-bottom: 0;
}

.page-contact .ct-card::after {
  bottom: -1px;
  right: -1px;
  border-left: 0;
  border-top: 0;
}

.page-contact .ct-card--phone {
  --ct-accent: var(--lava);
}

.page-contact .ct-card--addr {
  --ct-accent: var(--mist);
}

.page-contact .ct-card:hover,
.page-contact .ct-card:focus-within {
  transform: translateY(-4px);
  border-color: var(--ct-accent);
}

.page-contact .ct-card__idx {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--ct-accent);
}

.page-contact .ct-card__title {
  margin: 8px 0 0;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--white);
}

.page-contact .ct-card__value {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.9vw, 19px);
  line-height: 1.5;
  color: var(--white);
  word-break: break-word;
  overflow-wrap: anywhere;
}

.page-contact .ct-card__use {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .ct-card__time {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--ct-line-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

/* ---------- 咨询前准备（奶油纸面） ---------- */
.page-contact .ct-prepare {
  padding: clamp(38px, 7vw, 96px) 0;
  background: var(--paper);
  color: var(--paper-ink);
  border-top: 1px solid var(--paper-line);
  border-bottom: 1px solid var(--paper-line);
}

.page-contact .ct-prepare__inner {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
}

.page-contact .ct-prepare .eyebrow {
  display: inline-block;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--ct-paper-faint);
}

.page-contact .ct-prepare h2 {
  margin: 12px 0 0;
  font-size: clamp(24px, 3.6vw, 40px);
  line-height: 1.2;
  color: var(--paper-ink);
}

.page-contact .ct-prepare__intro > p {
  margin: 16px 0 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ct-paper-dim);
}

.page-contact .ct-prepare__fig {
  margin: 24px 0 0;
  border: 1px solid var(--paper-line);
  background: #e8dcc6;
}

.page-contact .ct-prepare__fig img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

.page-contact .ct-steps {
  border-top: 1px solid var(--paper-line);
}

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

.page-contact .ct-step__sum {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 16px 0;
  list-style: none;
  cursor: pointer;
  font-size: clamp(15px, 1.7vw, 18px);
  font-weight: 700;
  color: var(--paper-ink);
}

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

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

.page-contact .ct-step__no {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: #a83a10;
}

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

.page-contact .ct-step__sign {
  flex: none;
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1;
  color: var(--ct-paper-faint);
  transition: transform 0.25s var(--ease), color 0.25s var(--ease);
}

.page-contact .ct-step[open] .ct-step__sign {
  transform: rotate(45deg);
  color: #c2410c;
}

.page-contact .ct-step__body {
  padding: 0 0 18px 30px;
}

.page-contact .ct-step__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ct-paper-dim);
}

/* ---------- 服务时间与范围 ---------- */
.page-contact .ct-scope {
  padding: clamp(38px, 7vw, 88px) 0;
  background: var(--ink-800);
  border-top: 1px solid var(--line);
}

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

.page-contact .ct-scope__head .index-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(18px, 2.4vw, 24px);
  letter-spacing: 0.08em;
  color: var(--lava);
}

.page-contact .ct-scope__head h2 {
  margin: 10px 0 0;
  font-size: clamp(22px, 3.4vw, 34px);
  line-height: 1.24;
  color: var(--white);
}

.page-contact .ct-scope__head p {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .ct-scope__list {
  margin: clamp(24px, 4vw, 36px) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-contact .ct-scope__row {
  display: grid;
  gap: 8px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-scope__k {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-contact .ct-scope__v {
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .ct-scope__v strong {
  color: var(--white);
  font-weight: 700;
}

.page-contact .ct-scope__v a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(45, 226, 230, 0.45);
}

.page-contact .ct-scope__v a:hover,
.page-contact .ct-scope__v a:focus-visible {
  border-bottom-color: var(--cyan);
}

/* ---------- 合作与纠错 ---------- */
.page-contact .ct-collab {
  padding: clamp(38px, 7vw, 88px) 0;
  background: var(--ink-900);
  border-top: 1px solid var(--line);
}

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

.page-contact .ct-collab__head .index-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(18px, 2.4vw, 24px);
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-contact .ct-collab__head h2 {
  margin: 10px 0 0;
  font-size: clamp(22px, 3.4vw, 34px);
  line-height: 1.24;
  color: var(--white);
}

.page-contact .ct-collab__head p {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--mist);
  word-break: break-word;
}

.page-contact .ct-collab__grid {
  display: grid;
  gap: 18px;
  margin-top: clamp(24px, 4vw, 36px);
}

.page-contact .ct-collab__card {
  position: relative;
  padding: clamp(22px, 3vw, 34px);
  border: 1px solid var(--line);
  background: linear-gradient(155deg, var(--panel) 0%, #091d31 100%);
}

.page-contact .ct-collab__card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 38px;
  height: 38px;
  background: var(--ink-900);
  clip-path: polygon(100% 0, 100% 100%, 0 0);
  pointer-events: none;
}

.page-contact .ct-collab__card--lava {
  border-color: rgba(255, 107, 53, 0.34);
}

.page-contact .ct-collab__card h3 {
  margin: 14px 0 0;
  font-size: clamp(18px, 2.2vw, 22px);
  line-height: 1.35;
  color: var(--white);
}

.page-contact .ct-collab__card p {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
  word-break: break-word;
}

.page-contact .ct-collab__card .ct-collab__tip {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--ct-line-soft);
  font-size: 14px;
  color: rgba(169, 183, 198, 0.86);
}

/* ---------- 地址与备案 ---------- */
.page-contact .ct-legal {
  padding: clamp(32px, 5vw, 68px) 0;
  background: var(--ink-800);
  border-top: 1px solid var(--line);
}

.page-contact .ct-legal__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
}

.page-contact .ct-legal__head .index-num {
  font-family: var(--font-mono);
  font-size: clamp(18px, 2.4vw, 24px);
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-contact .ct-legal__head h2 {
  margin: 0;
  font-size: clamp(20px, 3vw, 30px);
  line-height: 1.3;
  color: var(--white);
}

.page-contact .ct-legal__grid {
  display: grid;
  gap: 16px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-contact .ct-legal__cell {
  padding: 20px 22px;
  border: 1px solid var(--line);
  background: rgba(14, 42, 69, 0.52);
}

.page-contact .ct-legal__k {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-contact .ct-legal__v {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(14px, 1.8vw, 18px);
  line-height: 1.5;
  color: var(--white);
  word-break: break-word;
  overflow-wrap: anywhere;
}

.page-contact .ct-legal__note {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .ct-legal__foot {
  margin: clamp(22px, 3.5vw, 32px) 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .ct-legal__foot a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(45, 226, 230, 0.45);
}

.page-contact .ct-legal__foot a:hover,
.page-contact .ct-legal__foot a:focus-visible {
  border-bottom-color: var(--cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .ct-channels__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    align-items: start;
  }

  .page-contact .ct-channels__grid > .ct-card:nth-child(2) {
    margin-top: 30px;
  }

  .page-contact .ct-channels__grid > .ct-card:nth-child(3) {
    margin-top: 60px;
  }

  .page-contact .ct-scope__row {
    grid-template-columns: 170px minmax(0, 1fr);
    align-items: baseline;
    gap: 8px 26px;
  }

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

  .page-contact .ct-legal__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr);
  }
}

@media (min-width: 900px) {
  .page-contact .ct-hero__inner {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    grid-template-areas:
      "crumbs crumbs"
      "copy   media";
    align-items: end;
  }

  .page-contact .ct-hero__crumbs {
    grid-area: crumbs;
  }

  .page-contact .ct-hero__copy {
    grid-area: copy;
  }

  .page-contact .ct-hero__media {
    grid-area: media;
    align-self: end;
  }

  .page-contact .ct-prepare__inner {
    grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
    align-items: start;
  }

  .page-contact .ct-scope__row {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 8px 40px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-card,
  .page-contact .ct-step__sign,
  .page-contact .ct-card__time {
    transition: none;
  }

  .page-contact .ct-card:hover,
  .page-contact .ct-card:focus-within {
    transform: none;
  }
}