.page-contact {
  --ct-rule: rgba(92, 110, 108, 0.28);
  --ct-rule-soft: rgba(92, 110, 108, 0.16);
  --ct-rule-ink: rgba(18, 33, 28, 0.16);
  --ct-pad: clamp(52px, 7.5vw, 112px);
  --ct-deep-orange: #C2470E;
  background: var(--ink-900);
  color: var(--mist-200);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-contact .ct-link {
  color: var(--lime-400);
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 242, 78, 0.45);
  padding-bottom: 1px;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.page-contact .ct-link:hover,
.page-contact .ct-link:focus-visible {
  color: var(--paper-050);
  border-bottom-color: var(--paper-050);
}

/* ---------- 首屏 ---------- */

.page-contact .ct-mast {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-mast__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-contact .ct-mast__bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
  filter: saturate(0.55) contrast(1.08);
}

.page-contact .ct-mast__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 85% at 82% 6%, rgba(240, 182, 90, 0.22), transparent 62%),
    linear-gradient(180deg, rgba(11, 21, 18, 0.74) 0%, rgba(11, 21, 18, 0.93) 58%, var(--ink-900) 100%);
}

.page-contact .ct-mast__inner {
  position: relative;
  z-index: 1;
  padding-top: clamp(24px, 4vw, 42px);
  padding-bottom: clamp(46px, 7vw, 92px);
}

.page-contact .ct-mast__eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: clamp(26px, 4vw, 44px) 0 16px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--orange-500);
}

.page-contact .ct-mast__eyebrow::before {
  content: "";
  width: 30px;
  height: 2px;
  background: var(--orange-500);
  flex: 0 0 auto;
}

.page-contact .ct-mast__title {
  margin: 0 0 clamp(16px, 2.4vw, 26px);
  font-family: var(--font-title);
  font-weight: 900;
  font-size: clamp(29px, 5.4vw, 56px);
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--paper-050);
  max-width: 18em;
}

.page-contact .ct-mast__lede {
  margin: 0;
  max-width: 64ch;
  font-size: clamp(15px, 1.1vw, 17px);
  line-height: 1.9;
  color: var(--text-dim);
}

.page-contact .ct-facts {
  list-style: none;
  margin: clamp(30px, 4.5vw, 56px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--ct-rule);
}

.page-contact .ct-facts li {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--ct-rule-soft);
}

.page-contact .ct-facts__k {
  flex: 0 0 84px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--text-faint);
}

.page-contact .ct-facts__v {
  font-family: var(--font-num);
  font-size: 13.5px;
  font-weight: 700;
  color: var(--mist-200);
  word-break: break-word;
}

@media (min-width: 760px) {
  .page-contact .ct-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .ct-facts li {
    flex-direction: column;
    gap: 10px;
    padding: 20px 24px 22px 0;
    border-bottom: 0;
    border-right: 1px solid var(--ct-rule-soft);
  }

  .page-contact .ct-facts li:last-child {
    border-right: 0;
  }
}

/* ---------- 章节骨架 ---------- */

.page-contact .yb-section {
  padding: var(--ct-pad) 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .yb-section__head {
  max-width: 780px;
  margin-bottom: clamp(30px, 4.5vw, 56px);
}

.page-contact .yb-section__num {
  margin: 0 0 12px;
  font-family: var(--font-num);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--orange-500);
}

.page-contact .yb-section__title {
  margin: 0 0 16px;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: clamp(23px, 3.4vw, 38px);
  line-height: 1.22;
  letter-spacing: -0.005em;
  color: var(--paper-050);
}

.page-contact .yb-section__note {
  margin: 0;
  font-size: clamp(14px, 1.05vw, 16px);
  line-height: 1.9;
  color: var(--text-dim);
}

/* ---------- 01 三条通道 ---------- */

.page-contact .ct-channels__list {
  display: grid;
  grid-template-columns: 1fr;
}

.page-contact .ct-channel {
  position: relative;
  padding: 26px 0 30px;
  border-top: 2px solid var(--slate-500);
}

.page-contact .ct-channel--mail {
  border-top-color: var(--lime-400);
}

.page-contact .ct-channel--phone {
  border-top-color: var(--orange-500);
}

.page-contact .ct-channel--self {
  border-top-color: var(--amber-300);
}

.page-contact .ct-channel__idx {
  margin: 0 0 14px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--text-faint);
}

.page-contact .ct-channel__name {
  margin: 0 0 12px;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: clamp(19px, 1.7vw, 23px);
  line-height: 1.3;
  color: var(--paper-050);
}

.page-contact .ct-channel__desc {
  margin: 0 0 22px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-dim);
}

.page-contact .ct-channel__meta {
  margin: 0;
  display: grid;
  gap: 10px;
}

.page-contact .ct-channel__meta > div {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.page-contact .ct-channel__meta dt {
  flex: 0 0 68px;
  font-family: var(--font-num);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  color: var(--text-faint);
}

.page-contact .ct-channel__meta dd {
  margin: 0;
  font-family: var(--font-num);
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist-200);
  word-break: break-word;
}

.page-contact .ct-channel__meta dd .ct-link {
  font-family: var(--font-body);
  font-size: 14px;
}

@media (min-width: 900px) {
  .page-contact .ct-channels__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .ct-channel {
    padding: 30px 32px 36px 0;
  }

  .page-contact .ct-channel + .ct-channel {
    padding-left: 32px;
    border-left: 1px solid var(--ct-rule-soft);
  }
}

/* ---------- 02 咨询清单 ---------- */

.page-contact .ct-brief__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(30px, 4.5vw, 60px);
}

.page-contact .ct-brief__desc {
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--text-faint);
}

.page-contact .ct-brief__panel {
  background: var(--graphite-700);
  border: 1px solid var(--line-soft);
  padding: clamp(20px, 3vw, 34px);
}

.page-contact .ct-brief__hint {
  margin: 0 0 16px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--lime-400);
}

.page-contact .ct-checklist {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .ct-checklist > li {
  border-bottom: 1px solid var(--ct-rule-soft);
}

.page-contact .ct-checklist > li:first-child {
  border-top: 1px solid var(--ct-rule-soft);
}

.page-contact .ct-check {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 15px 2px;
  cursor: pointer;
}

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

.page-contact .ct-check__mark {
  position: relative;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin-top: 3px;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  background: rgba(11, 21, 18, 0.6);
  transition: background 0.18s ease, border-color 0.18s ease;
}

.page-contact .ct-check__mark::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 10px;
  border-right: 2px solid var(--ink-900);
  border-bottom: 2px solid var(--ink-900);
  transform: rotate(42deg) scale(0);
  transform-origin: center;
  transition: transform 0.16s ease;
}

.page-contact .ct-check input:checked + .ct-check__mark {
  background: var(--lime-400);
  border-color: var(--lime-400);
}

.page-contact .ct-check input:checked + .ct-check__mark::after {
  transform: rotate(42deg) scale(1);
}

.page-contact .ct-check input:focus-visible + .ct-check__mark {
  outline: 2px solid var(--lime-400);
  outline-offset: 3px;
}

.page-contact .ct-check__text {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.page-contact .ct-check__text strong {
  font-family: var(--font-title);
  font-size: 14.5px;
  font-weight: 700;
  color: var(--paper-050);
}

.page-contact .ct-check__text span {
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--text-faint);
}

.page-contact .ct-sample {
  margin-top: clamp(22px, 3vw, 32px);
  padding: 18px 20px 20px;
  border-left: 2px solid var(--lime-400);
  background: rgba(11, 21, 18, 0.6);
}

.page-contact .ct-sample__cap {
  margin: 0 0 12px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--lime-400);
}

.page-contact .ct-sample__body {
  margin: 0;
  font-size: 13px;
  line-height: 1.95;
  color: var(--text-dim);
  white-space: pre-wrap;
}

@media (min-width: 960px) {
  .page-contact .ct-brief__grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: start;
  }

  .page-contact .ct-brief__lead {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }
}

/* ---------- 03 合作对接（浅色段） ---------- */

.page-contact .ct-partners {
  background: var(--paper-050);
  color: var(--ink-800);
}

.page-contact .ct-partners .yb-section__num {
  color: var(--ct-deep-orange);
}

.page-contact .ct-partners .yb-section__title {
  color: var(--ink-800);
}

.page-contact .ct-partners .yb-section__note {
  color: rgba(18, 33, 28, 0.72);
}

.page-contact .ct-partners__grid {
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--ct-rule-ink);
}

.page-contact .ct-partner {
  padding: 26px 0 28px;
  border-bottom: 1px solid var(--ct-rule-ink);
}

.page-contact .ct-partner__idx {
  margin: 0 0 12px;
  font-family: var(--font-num);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--ct-deep-orange);
}

.page-contact .ct-partner__name {
  margin: 0 0 12px;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: clamp(18px, 1.6vw, 21px);
  line-height: 1.32;
  color: var(--ink-800);
}

.page-contact .ct-partner__desc {
  margin: 0 0 18px;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(18, 33, 28, 0.74);
}

.page-contact .ct-partner__cap {
  margin: 0 0 10px;
  font-family: var(--font-num);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  color: rgba(18, 33, 28, 0.5);
}

.page-contact .ct-partner__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-contact .ct-partner__list li {
  position: relative;
  padding-left: 17px;
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(18, 33, 28, 0.82);
}

.page-contact .ct-partner__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 1px;
  background: var(--orange-500);
}

@media (min-width: 900px) {
  .page-contact .ct-partners__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .ct-partner {
    padding: 30px 32px 34px 0;
    border-bottom: 0;
    border-right: 1px solid var(--ct-rule-ink);
  }

  .page-contact .ct-partner:last-child {
    border-right: 0;
    padding-right: 0;
  }

  .page-contact .ct-partner + .ct-partner {
    padding-left: 32px;
  }
}

/* ---------- 04 回复节奏 ---------- */

.page-contact .ct-rhythm__media {
  margin-bottom: clamp(32px, 4.5vw, 56px);
  border: 1px solid var(--line-soft);
  background: var(--ink-800);
}

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

.page-contact .ct-axis {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
}

.page-contact .ct-axis__node {
  position: relative;
  padding: 0 0 30px 26px;
  border-left: 1px solid var(--ct-rule);
}

.page-contact .ct-axis__node::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 4px;
  width: 11px;
  height: 11px;
  box-sizing: border-box;
  background: var(--ink-900);
  border: 2px solid var(--slate-500);
}

.page-contact .ct-axis__node--key::before {
  background: var(--orange-500);
  border-color: var(--orange-500);
  box-shadow: 0 0 14px rgba(255, 106, 43, 0.55);
}

.page-contact .ct-axis__node:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-contact .ct-axis__time {
  margin: 0 0 9px;
  font-family: var(--font-num);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--orange-500);
}

.page-contact .ct-axis__name {
  margin: 0 0 8px;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: 17px;
  line-height: 1.35;
  color: var(--paper-050);
}

.page-contact .ct-axis__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--text-dim);
}

@media (min-width: 900px) {
  .page-contact .ct-axis {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .ct-axis__node {
    padding: 30px 26px 0 0;
    border-left: 0;
    border-top: 1px solid var(--ct-rule);
  }

  .page-contact .ct-axis__node::before {
    left: 0;
    top: -6px;
  }

  .page-contact .ct-axis__node:last-child {
    border-top-color: var(--ct-rule);
  }
}

/* ---------- 05 运营与联系信息 ---------- */

.page-contact .ct-firm__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 64px);
}

.page-contact .ct-firm {
  margin: 0;
  display: grid;
  grid-template-columns: 1fr;
}

.page-contact .ct-firm__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--ct-rule-soft);
}

.page-contact .ct-firm__row:first-child {
  border-top: 1px solid var(--ct-rule-soft);
}

.page-contact .ct-firm dt {
  font-family: var(--font-num);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  color: var(--text-faint);
}

.page-contact .ct-firm dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist-200);
  word-break: break-word;
}

.page-contact .ct-firm__row--note dd {
  font-size: 13px;
  line-height: 1.85;
  color: var(--text-faint);
}

@media (min-width: 700px) {
  .page-contact .ct-firm__row {
    grid-template-columns: 168px minmax(0, 1fr);
    gap: 24px;
    align-items: baseline;
  }
}

@media (min-width: 1020px) {
  .page-contact .ct-firm__grid {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    align-items: start;
  }

  .page-contact .ct-firm__lead .yb-section__head {
    margin-bottom: 0;
  }
}

/* ---------- 收束留白 ---------- */

.page-contact .ct-tail {
  height: clamp(80px, 12vw, 180px);
  background: linear-gradient(180deg, var(--ink-900) 0%, var(--ink-800) 100%);
}