/* ================= contact page ================= */
.page-contact {
  --ct-line: rgba(198, 169, 107, 0.20);
  --ct-line-soft: rgba(198, 169, 107, 0.10);
  --ct-cyan-line: rgba(55, 228, 212, 0.26);
  --ct-panel: rgba(16, 48, 60, 0.55);
  --ct-panel-deep: rgba(13, 36, 48, 0.82);
  --ct-cut: 20px;
  --ct-radius: 16px;
  --ct-gap: clamp(24px, 4vw, 48px);
  overflow-x: clip;
}

.page-contact h1,
.page-contact h2,
.page-contact h3 {
  font-family: var(--font-head);
  letter-spacing: -0.01em;
}

/* ---------- 页首 ---------- */
.page-contact .contact-hero {
  max-width: 840px;
  padding: clamp(26px, 4.5vw, 58px) 0 clamp(8px, 1.6vw, 18px);
}

.page-contact .contact-hero h1 {
  margin: 10px 0 0;
  font-size: clamp(30px, 6vw, 56px);
  line-height: 1.1;
  font-weight: 700;
  color: var(--mist);
  text-wrap: balance;
}

.page-contact .contact-hero__lede {
  max-width: 62ch;
  margin-top: clamp(16px, 2.4vw, 24px);
  font-size: clamp(15.5px, 1.9vw, 18px);
  line-height: 1.82;
  color: var(--mist);
  opacity: 0.88;
}

/* ---------- 章节色带 ---------- */
.page-contact .chapter-band {
  --band: var(--cyan);
}

.page-contact .sec-scope .chapter-band {
  --band: var(--cyan);
}

.page-contact .sec-topics .chapter-band {
  --band: var(--orange);
}

.page-contact .sec-ready .chapter-band {
  --band: var(--gold);
}

.page-contact .sec-hours .chapter-band {
  --band: var(--indigo);
}

.page-contact .sec-partner .chapter-band {
  --band: var(--wine);
}

/* ---------- 服务范围 ---------- */
.page-contact .sec-scope__lede {
  margin: clamp(18px, 2.6vw, 28px) 0 clamp(26px, 3.4vw, 38px);
  max-width: 72ch;
}

.page-contact .scope-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(14px, 2vw, 22px);
}

.page-contact .scope-item {
  position: relative;
  padding: clamp(20px, 2.6vw, 28px) clamp(20px, 2.6vw, 30px);
  border: 1px solid var(--ct-line-soft);
  border-left: 3px solid var(--ct-line);
  border-radius: 4px var(--ct-radius) var(--ct-radius) var(--ct-radius);
  background: linear-gradient(140deg, rgba(16, 48, 60, 0.72), rgba(10, 26, 40, 0.5));
  min-width: 0;
}

.page-contact .scope-item__num {
  display: block;
  font-family: var(--font-num);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.page-contact .scope-item__t {
  margin: 10px 0 8px;
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 600;
  color: var(--mist);
}

.page-contact .scope-item__d {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: rgba(238, 243, 246, 0.76);
}

/* ---------- 联系卡 + 右栏 ---------- */
.page-contact .contact-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ct-gap);
  align-items: start;
  padding-bottom: clamp(8px, 2vw, 20px);
}

/* 联系卡 */
.page-contact .contact-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--ct-cyan-line);
  border-radius: var(--ct-radius) var(--ct-radius) 4px var(--ct-radius);
  background: linear-gradient(168deg, #123544 0%, #0d2531 52%, #0A1A28 100%);
  isolation: isolate;
}

.page-contact .contact-card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 120px;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--cyan));
  z-index: 2;
}

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

.page-contact .contact-card__art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.15;
  display: block;
}

.page-contact .contact-card__inner {
  position: relative;
  z-index: 1;
  padding: clamp(22px, 3.2vw, 34px);
}

.page-contact .contact-card__title {
  margin: 10px 0 0;
  font-size: clamp(21px, 2.8vw, 26px);
  font-weight: 600;
  color: var(--mist);
}

.page-contact .contact-card__note {
  margin: 12px 0 clamp(16px, 2.4vw, 22px);
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(238, 243, 246, 0.7);
}

.page-contact .chan {
  padding: clamp(15px, 2.2vw, 20px) 0;
  border-top: 1px dashed var(--ct-line);
}

.page-contact .chan--last {
  padding-bottom: 0;
}

.page-contact .chan__label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--graphite);
  text-transform: uppercase;
}

.page-contact .chan__mail {
  margin: 9px 0 0;
  font-family: var(--font-num);
  font-size: clamp(15px, 2.3vw, 19px);
  line-height: 1.4;
  letter-spacing: 0.01em;
  color: var(--cyan);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .chan__copy {
  margin-top: 12px;
}

.page-contact .chan__tel {
  display: inline-block;
  margin-top: 8px;
  font-family: var(--font-num);
  font-size: clamp(22px, 3.6vw, 30px);
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 139, 61, 0.35);
  padding-bottom: 2px;
  font-variant-numeric: tabular-nums;
}

.page-contact .chan__tel:hover,
.page-contact .chan__tel:focus-visible {
  border-bottom-color: var(--orange);
}

.page-contact .chan__sub {
  margin: 8px 0 0;
  font-size: 13px;
  color: var(--graphite);
}

.page-contact .chan__addr {
  margin: 9px 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--mist);
  overflow-wrap: anywhere;
}

/* 右栏内容流 */
.page-contact .contact-stream {
  display: grid;
  gap: clamp(38px, 5vw, 62px);
  min-width: 0;
}

.page-contact .contact-stream > section {
  min-width: 0;
}

/* ---------- 咨询类型折叠清单 ---------- */
.page-contact .qa {
  border: 1px solid var(--ct-line-soft);
  border-radius: 12px;
  background: var(--ct-panel);
  overflow: hidden;
  transition: border-color 0.2s var(--ease);
}

.page-contact .qa + .qa {
  margin-top: 12px;
}

.page-contact .qa[open] {
  border-color: var(--ct-cyan-line);
}

.page-contact .qa__sum {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: clamp(15px, 2.2vw, 19px) clamp(16px, 2.4vw, 22px);
  cursor: pointer;
  list-style: none;
  font-weight: 600;
  font-size: clamp(15.5px, 2vw, 17px);
  color: var(--mist);
}

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

.page-contact .qa__num {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 8px 8px 8px 2px;
  background: rgba(198, 169, 107, 0.12);
  border: 1px solid var(--ct-line);
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.page-contact .qa[open] .qa__num {
  background: rgba(55, 228, 212, 0.14);
  border-color: var(--ct-cyan-line);
  color: var(--cyan);
}

.page-contact .qa__t {
  min-width: 0;
}

.page-contact .qa__mark {
  flex: none;
  margin-left: auto;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(45deg);
  transition: transform 0.22s var(--ease);
}

.page-contact .qa[open] .qa__mark {
  transform: rotate(-135deg);
}

.page-contact .qa__body {
  padding: 0 clamp(16px, 2.4vw, 22px) clamp(17px, 2.4vw, 22px);
}

.page-contact .qa__body p {
  margin: 0;
  padding-top: 4px;
  border-top: 1px solid var(--ct-line-soft);
  padding-top: 14px;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(238, 243, 246, 0.76);
}

/* ---------- 准备清单 ---------- */
.page-contact .sec-ready__lede {
  margin: clamp(16px, 2.4vw, 24px) 0 clamp(20px, 2.6vw, 28px);
  max-width: 68ch;
}

.page-contact .ck-list {
  display: grid;
  gap: 10px;
}

.page-contact .ck {
  display: flex;
  align-items: flex-start;
  gap: 13px;
  padding: clamp(13px, 1.9vw, 16px) clamp(14px, 2vw, 18px);
  border: 1px solid var(--ct-line-soft);
  border-radius: 12px;
  background: rgba(244, 239, 230, 0.035);
  cursor: pointer;
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease);
}

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

.page-contact .ck input {
  appearance: none;
  -webkit-appearance: none;
  flex: none;
  position: relative;
  width: 19px;
  height: 19px;
  margin: 2px 0 0;
  border: 1.5px solid var(--graphite);
  border-radius: 5px;
  background: transparent;
  cursor: pointer;
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-contact .ck input:checked {
  border-color: var(--cyan);
  background: var(--cyan);
}

.page-contact .ck input:checked::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 0.5px;
  width: 5px;
  height: 10px;
  border-right: 2px solid #0A1A28;
  border-bottom: 2px solid #0A1A28;
  transform: rotate(42deg);
}

.page-contact .ck__text {
  font-size: 15px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .ck:has(input:checked) .ck__text {
  color: rgba(238, 243, 246, 0.5);
}

/* ---------- 工作时间带 ---------- */
.page-contact .hr-band {
  position: relative;
  margin-top: clamp(22px, 3vw, 32px);
  border: 1px solid var(--ct-line);
  border-radius: var(--ct-radius);
  overflow: hidden;
  background: var(--ct-panel-deep);
  isolation: isolate;
}

.page-contact .hr-band__art {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-contact .hr-band__art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.14;
  display: block;
}

.page-contact .hr-steps {
  position: relative;
  z-index: 1;
  list-style: none;
  margin: 0;
  padding: clamp(20px, 3vw, 34px) clamp(20px, 3vw, 36px);
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.page-contact .hr-step {
  position: relative;
  padding: 18px 0 18px 26px;
  border-left: 1px solid var(--ct-line);
}

.page-contact .hr-step:first-child {
  padding-top: 4px;
}

.page-contact .hr-step:last-child {
  padding-bottom: 4px;
}

.page-contact .hr-step::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 25px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(198, 169, 107, 0.14);
}

.page-contact .hr-step:first-child::before {
  top: 11px;
}

.page-contact .hr-step__time {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(16px, 2.2vw, 20px);
  font-weight: 500;
  letter-spacing: 0.03em;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-contact .hr-step__t {
  margin: 7px 0 5px;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--mist);
}

.page-contact .hr-step__d {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: rgba(238, 243, 246, 0.7);
}

/* ---------- 商务合作 ---------- */
.page-contact .partner-grid {
  margin-top: clamp(20px, 2.8vw, 30px);
  gap: clamp(24px, 3.4vw, 44px);
}

.page-contact .partner-grid__intro,
.page-contact .partner-grid__list {
  min-width: 0;
}

.page-contact .partner-grid__h {
  margin: 0 0 14px;
  font-size: clamp(19px, 2.4vw, 23px);
  font-weight: 600;
  color: var(--mist);
}

.page-contact .partner-grid__p {
  margin: 0 0 14px;
  font-size: 15.5px;
  line-height: 1.82;
  color: rgba(238, 243, 246, 0.76);
}

.page-contact .partner-req {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .partner-req__item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: clamp(13px, 1.9vw, 16px) clamp(14px, 2vw, 18px);
  border: 1px solid var(--ct-line-soft);
  border-radius: 4px 12px 12px 12px;
  background: rgba(16, 48, 60, 0.42);
}

.page-contact .partner-req__num {
  flex: none;
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px 6px 6px 2px;
  background: rgba(123, 46, 62, 0.42);
  border: 1px solid rgba(198, 169, 107, 0.24);
  font-family: var(--font-num);
  font-size: 12.5px;
  color: var(--gold);
  letter-spacing: 0.04em;
}

.page-contact .partner-req__t {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .partner-req__foot {
  margin: 16px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(238, 243, 246, 0.72);
}

.page-contact .partner-req__mail {
  font-family: var(--font-num);
  color: var(--cyan);
  overflow-wrap: anywhere;
}

.page-contact .sec-partner__more {
  margin: clamp(26px, 3.6vw, 38px) 0 0;
  padding: clamp(15px, 2.2vw, 20px) clamp(16px, 2.4vw, 22px);
  border-left: 3px solid var(--gold);
  border-radius: 4px 12px 12px 4px;
  background: rgba(244, 239, 230, 0.05);
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(238, 243, 246, 0.76);
  max-width: 88ch;
}

.page-contact .sec-partner__more a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(55, 228, 212, 0.35);
}

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

/* ---------- 桌面端栅格 ---------- */
@media (min-width: 720px) {
  .page-contact .scope-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 980px) {
  .page-contact .contact-split {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: clamp(34px, 4.6vw, 60px);
  }

  .page-contact .contact-card {
    position: sticky;
    top: 92px;
  }

  .page-contact .hr-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0 clamp(14px, 2.2vw, 30px);
  }

  .page-contact .hr-step {
    padding: 22px 0 6px 0;
    border-left: 0;
    border-top: 1px solid var(--ct-line);
  }

  .page-contact .hr-step:first-child,
  .page-contact .hr-step:last-child {
    padding-top: 22px;
    padding-bottom: 6px;
  }

  .page-contact .hr-step::before,
  .page-contact .hr-step:first-child::before {
    left: 0;
    top: -4px;
  }
}

@media (min-width: 1160px) {
  .page-contact .partner-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .qa__mark,
  .page-contact .ck,
  .page-contact .ck input,
  .page-contact .qa {
    transition: none;
  }
}