/* ===== 咨询通道 / contact ===== */

.page-contact {
  display: block;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-head {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: 32px 0 58px;
  color: var(--sand);
  background:
    radial-gradient(circle at 14% 12%, rgba(214, 165, 76, .16), transparent 46%),
    radial-gradient(circle at 88% 88%, rgba(74, 62, 99, .55), transparent 52%),
    linear-gradient(178deg, #0F1D2E 0%, #132840 58%, #0F1D2E 100%);
}

.page-contact .contact-head::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: .35;
  background-image: radial-gradient(rgba(245, 241, 232, .18) 1px, transparent 1.3px);
  background-size: 20px 20px;
}

.page-contact .contact-head .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 26px;
  padding: 0;
  list-style: none;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: .06em;
}

.page-contact .contact-head .breadcrumb__link,
.page-contact .contact-head .breadcrumb__sep {
  color: rgba(245, 241, 232, .62);
  text-decoration: none;
}

.page-contact .contact-head .breadcrumb__current {
  color: var(--gold);
}

.page-contact .contact-head .breadcrumb__link:hover {
  color: var(--gold-hi);
}

.page-contact .contact-head .page-head__kicker {
  margin: 0;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-contact .contact-head__title {
  margin: 16px 0 0;
  max-width: 15em;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(34px, 6.6vw, 72px);
  line-height: 1.1;
  letter-spacing: .01em;
  color: var(--sand);
}

.page-contact .contact-head__lede {
  margin: 22px 0 0;
  max-width: 42ch;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.9;
  color: rgba(245, 241, 232, .76);
}

/* ---------- 通用小节节奏 ---------- */
.page-contact .section {
  padding: 52px 0;
}

.page-contact .sec-kicker {
  margin: 0;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: .14em;
  color: var(--plum);
}

.page-contact .sec-title {
  margin: 10px 0 0;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(25px, 3.4vw, 40px);
  line-height: 1.22;
  color: var(--text);
}

.page-contact .sec-lede {
  margin: 14px 0 0;
  max-width: 58ch;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--stone);
}

/* ---------- 两栏：联系卡片 + 准备清单 ---------- */
.page-contact .channel-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 36px;
}

.page-contact .channel-layout__main,
.page-contact .channel-layout__aside {
  min-width: 0;
}

/* ---------- 联系卡片 ---------- */
.page-contact .contact-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--r-lg);
  border: 1px solid rgba(214, 165, 76, .28);
  background: linear-gradient(172deg, #1B2E45 0%, #0F1D2E 74%);
  color: var(--sand);
}

.page-contact .contact-card__media {
  display: block;
  margin: 0;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border-bottom: 1px solid rgba(214, 165, 76, .24);
  background: #16273B;
}

.page-contact .contact-card__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  max-width: 100%;
  opacity: .92;
}

.page-contact .contact-card__body {
  padding: 26px 24px 28px;
}

.page-contact .contact-card__kicker {
  margin: 0 0 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-contact .contact-card__title {
  margin: 0 0 4px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 25px;
  line-height: 1.32;
  color: var(--sand);
}

.page-contact .chan {
  margin-top: 22px;
  padding-top: 22px;
  border-top: 1px solid rgba(245, 241, 232, .1);
}

.page-contact .chan:first-of-type {
  margin-top: 18px;
  padding-top: 0;
  border-top: none;
}

.page-contact .chan__head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.page-contact .chan__idx {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--gold);
}

.page-contact .chan__label {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--sand);
}

.page-contact .chan__value {
  margin: 0 0 8px;
  font-size: 15.5px;
  line-height: 1.65;
  color: var(--gold-hi);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .chan__note {
  margin: 0 0 14px;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(245, 241, 232, .68);
}

.page-contact .chan__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

/* ---------- 复制按钮与行内反馈 ---------- */
.page-contact .copy-btn {
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  padding: 8px 15px;
  border-radius: var(--r-pill);
  border: 1px solid rgba(214, 165, 76, .42);
  background: rgba(214, 165, 76, .06);
  color: var(--gold-hi);
  cursor: pointer;
  transition: background var(--step), border-color var(--step), color var(--step);
}

.page-contact .copy-btn:hover {
  background: rgba(214, 165, 76, .18);
  border-color: var(--gold);
}

.page-contact .copy-btn:focus-visible {
  outline: none;
  background: rgba(214, 165, 76, .18);
  border-color: var(--gold);
  box-shadow: 0 0 0 2px rgba(242, 220, 158, .5);
}

.page-contact .copy-note {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--gold-hi);
  opacity: 0;
  transition: opacity var(--step);
}

.page-contact .copy-note.is-visible {
  opacity: 1;
}

/* ---------- 准备清单 ---------- */
.page-contact .prep {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.page-contact .prep__head {
  max-width: 48ch;
}

.page-contact .prep__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 4px 0 2px;
}

.page-contact .chip {
  display: inline-flex;
  align-items: center;
  padding: 9px 17px;
  border-radius: var(--r-pill);
  border: 1px solid rgba(108, 116, 128, .3);
  background: var(--sand);
  color: var(--text);
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .05em;
  text-decoration: none;
  transition: background var(--step), border-color var(--step), color var(--step);
}

.page-contact .chip:hover,
.page-contact .chip:focus-visible {
  outline: none;
  border-color: var(--gold);
  color: var(--plum);
  background: rgba(214, 165, 76, .12);
}

.page-contact .prep:has(#topic-access:target) .chip[href="#topic-access"],
.page-contact .prep:has(#topic-version:target) .chip[href="#topic-version"],
.page-contact .prep:has(#topic-partner:target) .chip[href="#topic-partner"],
.page-contact .prep:not(:has(.prep__panel:target)) .chip[href="#topic-access"] {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink);
  font-weight: 600;
}

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

.page-contact .prep__panel {
  display: none;
  padding: 26px 24px 24px;
  border-radius: var(--r-lg);
  border: 1px solid rgba(108, 116, 128, .22);
  background: var(--sand);
}

.page-contact .prep__panel--default {
  display: block;
}

.page-contact .prep__panel:target {
  display: block;
}

.page-contact .prep__panels:has(.prep__panel:target) .prep__panel--default:not(:target) {
  display: none;
}

.page-contact .prep__panel-kicker {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--plum);
}

.page-contact .prep__panel-title {
  margin: 10px 0 0;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(21px, 2.4vw, 27px);
  line-height: 1.35;
  color: var(--text);
}

.page-contact .checklist {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 13px;
}

.page-contact .checklist__item {
  position: relative;
  padding-left: 32px;
  font-size: 16px;
  line-height: 1.72;
  color: rgba(18, 22, 28, .82);
}

.page-contact .checklist__mark {
  position: absolute;
  left: 0;
  top: 4px;
  width: 19px;
  height: 19px;
  border-radius: 6px;
  border: 1px solid rgba(214, 165, 76, .55);
  background: rgba(214, 165, 76, .1);
}

.page-contact .checklist__mark::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 5px;
  width: 7px;
  height: 4px;
  border-left: 1.7px solid #A8812F;
  border-bottom: 1.7px solid #A8812F;
  transform: rotate(-45deg);
}

.page-contact .prep__foot {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid rgba(108, 116, 128, .22);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}

.page-contact .prep__draft {
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--stone);
}

/* ---------- 处理先后 ---------- */
.page-contact .order__head {
  max-width: 54ch;
  margin-bottom: 32px;
}

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

.page-contact .order__item {
  position: relative;
  display: grid;
  gap: 14px;
  padding: 26px 0;
  border-top: 1px solid rgba(108, 116, 128, .22);
}

.page-contact .order__item:last-child {
  border-bottom: 1px solid rgba(108, 116, 128, .22);
}

.page-contact .order__idx {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: var(--r-pill);
  background: rgba(74, 62, 99, .1);
  color: var(--plum);
  font-family: var(--mono);
  font-size: 16px;
  letter-spacing: .04em;
}

.page-contact .order__item-title {
  margin: 0 0 10px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(19px, 2.2vw, 23px);
  line-height: 1.4;
  color: var(--text);
}

.page-contact .order__item-text {
  margin: 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.88;
  color: rgba(18, 22, 28, .74);
}

/* ---------- 高频问题 ---------- */
.page-contact .faq__list {
  margin-top: 32px;
  display: grid;
  gap: 18px;
}

.page-contact .faq__card {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 28px 24px 24px;
  border-radius: var(--r-lg);
  border: 1px solid rgba(108, 116, 128, .22);
  background: var(--sand);
}

.page-contact .faq__card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gold) 0%, rgba(214, 165, 76, 0) 82%);
}

.page-contact .faq__q {
  margin: 0;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.5;
  color: var(--text);
}

.page-contact .faq__a {
  margin: 0;
  flex: 1 1 auto;
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(18, 22, 28, .72);
}

.page-contact .faq__link {
  align-self: flex-start;
  padding-bottom: 2px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .05em;
  color: var(--plum);
  text-decoration: none;
  border-bottom: 1px solid rgba(74, 62, 99, .3);
  transition: color var(--step), border-color var(--step);
}

.page-contact .faq__link:hover,
.page-contact .faq__link:focus-visible {
  outline: none;
  color: var(--clay);
  border-color: var(--clay);
}

/* ---------- 备案与地区 ---------- */
.page-contact .region-section {
  padding: 8px 0 70px;
}

.page-contact .region__rule {
  height: 1px;
  margin-bottom: 40px;
  background: linear-gradient(90deg, rgba(214, 165, 76, 0) 0%, rgba(214, 165, 76, .6) 22%, rgba(108, 116, 128, .25) 100%);
}

.page-contact .region__panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  overflow: hidden;
  border-radius: var(--r-lg);
  border: 1px solid rgba(214, 165, 76, .24);
  color: var(--sand);
  background:
    radial-gradient(circle at 82% 16%, rgba(214, 165, 76, .14), transparent 52%),
    linear-gradient(168deg, #251F35 0%, #0F1D2E 78%);
}

.page-contact .region__body {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 32px 26px 34px;
}

.page-contact .region__kicker {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-contact .region__title {
  margin: 0;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(23px, 3vw, 34px);
  line-height: 1.26;
  color: var(--sand);
}

.page-contact .region__text {
  margin: 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.9;
  color: rgba(245, 241, 232, .75);
}

.page-contact .region__copy {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 4px;
}

.page-contact .region__icp {
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: .06em;
  color: var(--gold-hi);
}

.page-contact .region__hint {
  margin: 0;
  max-width: 52ch;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(245, 241, 232, .58);
}

.page-contact .region__hint-link {
  color: var(--gold-hi);
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 220, 158, .4);
}

.page-contact .region__hint-link:hover,
.page-contact .region__hint-link:focus-visible {
  outline: none;
  color: var(--gold);
  border-color: var(--gold);
}

.page-contact .region__media {
  position: relative;
  margin: 0;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #16273B;
}

.page-contact .region__media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  opacity: .88;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-contact .section {
    padding: 72px 0;
  }

  .page-contact .order__item {
    grid-template-columns: 76px minmax(0, 1fr);
    gap: 28px;
    align-items: start;
    padding: 32px 0;
  }

  .page-contact .order__item::before {
    content: "";
    position: absolute;
    left: 25px;
    top: 66px;
    bottom: -18px;
    width: 1px;
    background: linear-gradient(180deg, rgba(74, 62, 99, .32), rgba(74, 62, 99, 0));
  }

  .page-contact .order__item:last-child::before {
    display: none;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-head {
    padding: 40px 0 76px;
  }

  .page-contact .section {
    padding: 88px 0;
  }

  .page-contact .faq__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }

  .page-contact .prep__panel {
    padding: 34px 32px 30px;
  }

  .page-contact .region__panel {
    align-items: stretch;
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  }

  .page-contact .region__body {
    padding: 46px 44px;
  }

  .page-contact .region__media {
    aspect-ratio: auto;
    min-height: 320px;
  }

  .page-contact .region__media img {
    position: absolute;
    inset: 0;
  }

  .page-contact .region-section {
    padding: 16px 0 100px;
  }
}

@media (min-width: 1000px) {
  .page-contact .channel-layout {
    grid-template-columns: minmax(0, 396px) minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-contact .channel-layout__aside {
    position: sticky;
    top: 100px;
  }
}