/* ================= 服务联络页 · page-contact ================= */
.page-contact {
  --ct-band: clamp(56px, 9vw, 104px);
  --ct-hair: 1px solid var(--ink-700);
  --ct-radius: var(--radius);
  position: relative;
  color: var(--paper);
  background:
    radial-gradient(820px 460px at 92% 0%, rgba(192, 51, 140, .15), transparent 62%),
    radial-gradient(660px 420px at 4% 26%, rgba(47, 191, 155, .09), transparent 62%);
}

.page-contact > section {
  position: relative;
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  padding: clamp(32px, 6vw, 72px) 0 clamp(44px, 7vw, 88px);
  border-bottom: var(--ct-hair);
}

.page-contact .ct-hero__inner {
  display: grid;
  gap: clamp(28px, 5vw, 56px);
  align-items: center;
}

.page-contact .ct-hero__eyebrow {
  margin: 22px 0 0;
  font-size: var(--fs-12);
  letter-spacing: var(--ls-anno);
  text-transform: uppercase;
  color: var(--gold);
}

.page-contact .ct-hero__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--fs-36);
  line-height: 1.2;
  letter-spacing: var(--ls-title);
  color: var(--paper);
  max-width: 18em;
}

.page-contact .ct-hero__lead {
  margin: 20px 0 0;
  max-width: 34em;
  font-size: var(--fs-16);
  line-height: var(--lh-body);
  color: #C9D0E4;
}

.page-contact .ct-hero__actions {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-contact .ct-hero__media {
  margin: 0;
  border: var(--ct-hair);
  border-radius: var(--ct-radius);
  background: linear-gradient(140deg, rgba(192, 51, 140, .18), rgba(47, 191, 155, .12));
}

/* ---------- 章节头 ---------- */
.page-contact .ct-head {
  display: grid;
  gap: 8px;
  padding-bottom: 16px;
  border-bottom: var(--ct-hair);
}

.page-contact .ct-head__index {
  margin: 0;
  font-size: var(--fs-12);
  letter-spacing: .24em;
  color: var(--gold);
}

.page-contact .ct-head__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--fs-28);
  line-height: 1.28;
  letter-spacing: var(--ls-title);
  color: var(--paper);
}

.page-contact .ct-head__note {
  margin: 0;
  font-size: var(--fs-12);
  letter-spacing: .1em;
  color: var(--muted);
}

/* ---------- 三条通道 ---------- */
.page-contact .ct-channels {
  padding: var(--ct-band) 0;
}

.page-contact .ct-channel-list {
  list-style: none;
  margin: clamp(26px, 4vw, 48px) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(16px, 2.4vw, 22px);
}

.page-contact .ct-channel {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 3vw, 34px);
  border: var(--ct-hair);
  border-radius: var(--ct-radius);
  background: linear-gradient(158deg, rgba(18, 26, 56, .94), rgba(11, 16, 38, .76));
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: border-color .18s var(--ease);
}

.page-contact .ct-channel::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
}

.page-contact .ct-channel--gold::before { background: var(--gold); }
.page-contact .ct-channel--teal::before { background: var(--teal); }
.page-contact .ct-channel--magenta::before { background: var(--magenta); }

.page-contact .ct-channel:hover {
  border-color: var(--gold-line);
}

.page-contact .ct-channel__label {
  margin: 0;
  font-size: var(--fs-12);
  letter-spacing: var(--ls-anno);
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .ct-channel__value {
  margin: 12px 0 0;
  font-size: var(--fs-18);
  line-height: 1.5;
  font-weight: 500;
  color: var(--paper);
  word-break: break-word;
}

.page-contact .ct-channel__value--mono {
  font-family: var(--font-mono);
  font-size: var(--fs-16);
  letter-spacing: .01em;
  color: var(--gold-soft);
  user-select: all;
  -webkit-user-select: all;
}

.page-contact .ct-channel--teal .ct-channel__value--mono {
  color: var(--teal-soft);
}

.page-contact .ct-channel__desc {
  margin: 14px 0 0;
  font-size: var(--fs-16);
  line-height: var(--lh-body);
  color: #B4BCCE;
}

.page-contact .ct-channel__hint {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--ink-700);
  font-size: var(--fs-13);
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 联络路径 ---------- */
.page-contact .ct-routes {
  padding: var(--ct-band) 0;
  border-top: var(--ct-hair);
}

.page-contact .ct-routes__inner {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
}

.page-contact .ct-routes__aside .ct-head__title {
  margin-top: 16px;
}

.page-contact .ct-routes__note {
  margin: 20px 0 0;
  max-width: 30em;
  font-size: var(--fs-16);
  line-height: var(--lh-body);
  color: #B4BCCE;
}

.page-contact .ct-route-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--ct-hair);
}

.page-contact .ct-route {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  padding: clamp(20px, 3vw, 28px) 0;
  border-bottom: var(--ct-hair);
}

.page-contact .ct-route__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border: 1px solid var(--gold-line);
  border-radius: 50%;
  font-size: var(--fs-13);
  color: var(--gold);
}

.page-contact .ct-route__body h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-18);
  line-height: 1.5;
  letter-spacing: .01em;
  color: var(--paper);
}

.page-contact .ct-route__body p {
  margin: 10px 0 0;
  font-size: var(--fs-16);
  line-height: var(--lh-body);
  color: #B4BCCE;
}

.page-contact .ct-route__link {
  display: inline-block;
  margin-top: 14px;
  font-size: var(--fs-13);
  letter-spacing: .06em;
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid var(--gold-line);
  padding-bottom: 2px;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-contact .ct-route__link:hover {
  color: var(--gold-soft);
  border-color: var(--gold);
}

/* ---------- 信息准备 ---------- */
.page-contact .ct-prepare {
  padding: var(--ct-band) 0;
  border-top: var(--ct-hair);
}

.page-contact .ct-prepare__inner {
  display: grid;
  gap: clamp(30px, 4vw, 56px);
  align-items: start;
}

.page-contact .ct-prepare__lead {
  margin: 22px 0 0;
  max-width: 32em;
  font-size: var(--fs-16);
  line-height: var(--lh-body);
  color: #B4BCCE;
}

.page-contact .ct-checklist {
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .ct-check {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 14px 16px;
  border: var(--ct-hair);
  border-radius: var(--ct-radius);
  background: rgba(18, 26, 56, .55);
  transition: border-color .18s var(--ease), background-color .18s var(--ease);
}

.page-contact .ct-check:hover {
  border-color: var(--gold-line);
}

.page-contact .ct-check input {
  appearance: none;
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  margin: 3px 0 0;
  border: 1px solid var(--muted);
  border-radius: 3px;
  background: transparent;
  cursor: pointer;
  display: grid;
  place-content: center;
  flex: none;
  transition: border-color .18s var(--ease), background-color .18s var(--ease);
}

.page-contact .ct-check input:checked {
  border-color: var(--teal);
  background: rgba(47, 191, 155, .18);
}

.page-contact .ct-check input:checked::after {
  content: "";
  width: 10px;
  height: 5px;
  border-left: 2px solid var(--teal-soft);
  border-bottom: 2px solid var(--teal-soft);
  transform: rotate(-45deg) translate(1px, -1px);
}

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

.page-contact .ct-check label {
  font-size: var(--fs-16);
  line-height: 1.7;
  color: var(--paper);
  cursor: pointer;
}

.page-contact .ct-check:has(input:checked) {
  border-color: rgba(47, 191, 155, .45);
  background: rgba(47, 191, 155, .07);
}

.page-contact .ct-check:has(input:checked) label {
  color: var(--muted);
}

.page-contact .ct-prepare__media {
  margin: 0;
  border: var(--ct-hair);
  border-radius: var(--ct-radius);
  background: linear-gradient(200deg, rgba(47, 191, 155, .1), rgba(192, 51, 140, .1));
}

/* ---------- 合作与反馈 ---------- */
.page-contact .ct-coop {
  padding: var(--ct-band) 0;
  border-top: var(--ct-hair);
}

.page-contact .ct-coop-list {
  list-style: none;
  margin: clamp(26px, 4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  border: var(--ct-hair);
  border-radius: var(--ct-radius);
  overflow: hidden;
  background: var(--ink-700);
}

.page-contact .ct-coop-item {
  padding: clamp(24px, 3vw, 34px);
  background: var(--ink-800);
}

.page-contact .ct-coop__mark {
  display: inline-block;
  padding: 3px 10px;
  border: 1px solid var(--magenta-soft);
  border-radius: 999px;
  font-size: var(--fs-12);
  letter-spacing: .12em;
  color: var(--magenta-soft);
}

.page-contact .ct-coop-item h3 {
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-18);
  line-height: 1.5;
  color: var(--paper);
}

.page-contact .ct-coop-item p {
  margin: 10px 0 0;
  font-size: var(--fs-16);
  line-height: var(--lh-body);
  color: #B4BCCE;
}

.page-contact .ct-coop__foot {
  margin: clamp(24px, 3vw, 36px) 0 0;
  max-width: 44em;
  font-size: var(--fs-16);
  line-height: var(--lh-body);
  color: var(--muted);
}

.page-contact .ct-coop__foot a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid var(--gold-line);
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-contact .ct-coop__foot a:hover {
  color: var(--gold-soft);
  border-color: var(--gold);
}

/* ---------- 图片容器 ---------- */
.page-contact .media-frame {
  overflow: hidden;
  border-radius: var(--ct-radius);
}

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

/* ---------- 焦点态 ---------- */
.page-contact .btn:focus-visible,
.page-contact a:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---------- 平板以上 ---------- */
@media (min-width: 760px) {
  .page-contact .ct-head {
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: baseline;
    gap: 20px;
  }

  .page-contact .ct-head__title {
    font-size: var(--fs-36);
  }

  .page-contact .ct-head__note {
    text-align: right;
    white-space: nowrap;
  }

  .page-contact .ct-hero__title {
    font-size: var(--fs-48);
  }

  .page-contact .ct-hero__lead {
    font-size: var(--fs-18);
  }

  .page-contact .ct-coop-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 桌面以上 ---------- */
@media (min-width: 960px) {
  .page-contact .ct-hero__inner {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    gap: clamp(40px, 6vw, 80px);
  }

  .page-contact .ct-channel-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .ct-routes__inner {
    grid-template-columns: minmax(0, .82fr) minmax(0, 1.35fr);
    gap: clamp(40px, 6vw, 88px);
  }

  .page-contact .ct-prepare__inner {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    gap: clamp(40px, 6vw, 80px);
  }
}

/* ---------- 降低动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-channel,
  .page-contact .ct-check,
  .page-contact .ct-check input,
  .page-contact .ct-route__link,
  .page-contact .ct-coop__foot a {
    transition: none;
  }
}