/* ============================================================
   帮助中心 /help-center/ —— page-faq
   作用域：.page-faq
   ============================================================ */

.page-faq {
  --faq-idx: 274px;
  --faq-gap: clamp(22px, 3vw, 42px);
  --faq-line-soft: rgba(107, 122, 143, .22);
  --faq-well: rgba(15, 31, 51, .58);
  display: block;
  padding-bottom: clamp(48px, 7vw, 96px);
  color: var(--fg);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-top: clamp(16px, 3vw, 34px);
  padding-bottom: clamp(22px, 3vw, 36px);
  border-bottom: 1px solid var(--faq-line-soft);
}

.page-faq .faq-hero .breadcrumbs {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 12.5px;
}

.page-faq .faq-hero .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero .breadcrumb-list > li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--mist-500);
}

.page-faq .faq-hero .breadcrumb-link {
  color: var(--mist-500);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.page-faq .faq-hero .breadcrumb-link:hover,
.page-faq .faq-hero .breadcrumb-link:focus-visible {
  color: var(--cyan-500);
}

.page-faq .faq-hero .breadcrumb-current {
  color: var(--paper-050);
}

.page-faq .faq-hero .eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--cyan-500);
}

.page-faq .faq-hero h1 {
  margin: 0 0 18px;
  max-width: 20ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 4.6vw, 48px);
  line-height: 1.14;
  letter-spacing: -.012em;
  color: var(--white);
}

.page-faq .faq-hero__lead {
  margin: 0 0 24px;
  max-width: 64ch;
  font-size: clamp(16px, 1.5vw, 18.5px);
  line-height: 1.78;
  color: rgba(247, 241, 230, .82);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}

.page-faq .faq-hero__note {
  margin: 0;
  padding: 10px 0 0;
  border-top: 1px dashed var(--faq-line-soft);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--mist-500);
}

/* ---------- 筛选条 ---------- */
.page-faq .faq-tools {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  align-items: center;
  padding: 16px 0;
  border-bottom: 1px solid var(--faq-line-soft);
}

.page-faq .faq-tools .search-label {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .1em;
  color: var(--mist-500);
}

.page-faq .faq-tools .search-status {
  margin: 0;
  font-size: 12.5px;
  color: var(--mist-500);
}

.page-faq .faq-tools .search-status[data-state="hit"] {
  color: var(--green-500);
}

.page-faq .faq-tools .search-status[data-state="miss"] {
  color: var(--gold-400);
}

@media (min-width: 720px) {
  .page-faq .faq-tools {
    grid-template-columns: auto minmax(220px, 400px) 1fr;
    gap: 16px;
  }
}

/* ---------- 双栏骨架 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  padding-top: clamp(24px, 3.4vw, 42px);
}

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-idx) minmax(0, 1fr);
    align-items: start;
  }
}

/* ---------- 左侧问题索引 ---------- */
.page-faq .faq-index {
  border: 1px solid var(--faq-line-soft);
  border-radius: var(--r-m);
  background: var(--glass);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 14px 0 12px;
}

@media (min-width: 1024px) {
  .page-faq .faq-index {
    position: sticky;
    top: 88px;
  }
}

.page-faq .faq-index__heading {
  margin: 0 0 10px;
  padding: 0 16px 10px;
  border-bottom: 1px solid var(--faq-line-soft);
  font-size: 11.5px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--mist-500);
}

.page-faq .faq-index-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index-link {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 9px 16px;
  border-left: 2px solid transparent;
  font-size: 14px;
  line-height: 1.4;
  color: var(--paper-050);
  text-decoration: none;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-index-link:hover,
.page-faq .faq-index-link:focus-visible {
  background: rgba(31, 182, 201, .1);
  border-left-color: var(--cyan-500);
}

.page-faq .faq-index-link__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--gold-400);
}

.page-faq .faq-index__foot {
  margin: 12px 0 0;
  padding: 12px 16px 0;
  border-top: 1px solid var(--faq-line-soft);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--mist-500);
}

/* ---------- 右侧回答区 ---------- */
.page-faq .faq-answers {
  display: grid;
  gap: clamp(34px, 4.6vw, 62px);
  min-width: 0;
}

.page-faq .faq-section {
  scroll-margin-top: 96px;
  padding-top: clamp(20px, 2.6vw, 30px);
  border-top: 1px solid var(--faq-line-soft);
  min-width: 0;
}

.page-faq .faq-section:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-faq .faq-section .section__head {
  margin: 0 0 14px;
}

.page-faq .faq-section .eyebrow {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--cyan-500);
}

.page-faq .faq-section h2 {
  margin: 0;
  max-width: 30ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 2.9vw, 33px);
  line-height: 1.2;
  letter-spacing: -.008em;
  color: var(--white);
}

.page-faq .faq-section > p {
  margin: 0 0 20px;
  max-width: 68ch;
  font-size: 17px;
  line-height: 1.78;
  color: rgba(247, 241, 230, .8);
}

.page-faq .faq-section h3 {
  margin: 30px 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(17px, 1.9vw, 20px);
  letter-spacing: .002em;
  color: var(--paper-050);
}

.page-faq .faq-inline-link {
  color: var(--cyan-500);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.page-faq .faq-inline-link:hover,
.page-faq .faq-inline-link:focus-visible {
  color: var(--gold-400);
}

/* ---------- 六步流程 ---------- */
.page-faq .faq-steps {
  display: grid;
  gap: 1px;
  margin: 20px 0 24px;
  padding: 0;
  list-style: none;
  background: var(--faq-line-soft);
  border: 1px solid var(--faq-line-soft);
  border-radius: var(--r-m);
  overflow: hidden;
}

@media (min-width: 720px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-faq .faq-step {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 16px;
  background: var(--ink-700);
}

.page-faq .faq-step__num {
  flex: none;
  padding: 2px 7px;
  border: 1px solid rgba(224, 165, 38, .4);
  border-radius: var(--r-s);
  background: rgba(224, 165, 38, .12);
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--gold-400);
}

.page-faq .faq-step__text {
  min-width: 0;
}

.page-faq .faq-step__title {
  margin: 0 0 5px;
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
}

.page-faq .faq-step__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: rgba(247, 241, 230, .74);
}

/* ---------- 术语表 ---------- */
.page-faq .faq-terms {
  display: grid;
  gap: 1px;
  margin: 0 0 24px;
  background: var(--faq-line-soft);
  border: 1px solid var(--faq-line-soft);
  border-radius: var(--r-m);
  overflow: hidden;
}

@media (min-width: 640px) {
  .page-faq .faq-terms {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-faq .faq-term {
  padding: 14px 16px;
  background: var(--ink-700);
}

.page-faq .faq-term dt {
  margin: 0 0 5px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--cyan-500);
}

.page-faq .faq-term dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: rgba(247, 241, 230, .78);
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-item {
  margin: 0 0 10px;
  border: 1px solid var(--faq-line-soft);
  border-radius: var(--r-m);
  background: var(--faq-well);
  overflow: hidden;
  transition: border-color var(--dur) var(--ease);
}

.page-faq .faq-item[open] {
  border-color: rgba(31, 182, 201, .48);
}

.page-faq .faq-item__summary {
  position: relative;
  padding: 14px 48px 14px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper-050);
}

.page-faq .faq-item__summary::-webkit-details-marker {
  display: none;
}

.page-faq .faq-item__summary::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 20px;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--cyan-500);
  border-bottom: 2px solid var(--cyan-500);
  transform: translateY(-70%) rotate(45deg);
  transition: transform var(--dur) var(--ease);
}

.page-faq .faq-item[open] .faq-item__summary::after {
  transform: translateY(-30%) rotate(-135deg);
}

.page-faq .faq-item__summary:hover,
.page-faq .faq-item__summary:focus-visible {
  color: var(--white);
  background: rgba(31, 182, 201, .06);
}

.page-faq .faq-item__body {
  padding: 14px 16px 16px;
  border-top: 1px solid var(--faq-line-soft);
}

.page-faq .faq-item__body p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(247, 241, 230, .82);
}

.page-faq .faq-item__body p:last-child {
  margin-bottom: 0;
}

/* ---------- 期号样式 ---------- */
.page-faq .faq-code {
  display: inline-block;
  padding: 2px 7px;
  border: 1px solid rgba(224, 165, 38, .32);
  border-radius: var(--r-s);
  background: rgba(224, 165, 38, .12);
  font-family: var(--font-mono);
  font-size: .92em;
  letter-spacing: .05em;
  color: var(--gold-400);
  white-space: nowrap;
}

.page-faq .faq-lookup {
  margin: 18px 0 24px;
  padding: 16px 18px;
  border: 1px solid var(--faq-line-soft);
  border-radius: var(--r-m);
  background: var(--faq-well);
}

.page-faq .faq-lookup__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--faq-line-soft);
  font-size: 13px;
}

.page-faq .faq-lookup__label {
  letter-spacing: .1em;
  color: var(--mist-500);
}

.page-faq .faq-lookup__arrow {
  font-size: 16px;
  color: var(--cyan-500);
}

.page-faq .faq-lookup__result {
  color: var(--paper-050);
}

.page-faq .faq-lookup__list {
  display: grid;
  gap: 8px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-lookup__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.72;
  color: rgba(247, 241, 230, .8);
}

.page-faq .faq-lookup__list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: .72em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan-500);
}

/* ---------- 更新时间面板 ---------- */
.page-faq .faq-time-panel {
  display: grid;
  gap: 12px;
  margin: 18px 0 24px;
  padding: 18px;
  border: 1px solid var(--faq-line-soft);
  border-left: 3px solid var(--gold-400);
  border-radius: var(--r-m);
  background: var(--glass);
}

.page-faq .faq-time-badge {
  justify-self: start;
  padding: 6px 14px;
  border-radius: var(--r-pill);
  background: var(--gold-400);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .03em;
  color: var(--ink-900);
}

.page-faq .faq-time-panel__text {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: rgba(247, 241, 230, .86);
}

/* ---------- 图片 ---------- */
.page-faq .figure {
  margin: 22px 0 26px;
}

.page-faq .figure__media {
  display: block;
  border: 1px solid var(--faq-line-soft);
  border-radius: var(--r-m);
  overflow: hidden;
  background: var(--ink-700);
}

.page-faq .figure__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .figure__caption {
  margin-top: 9px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--mist-500);
}

/* ---------- 联系信息 ---------- */
.page-faq .faq-contact {
  display: grid;
  gap: 1px;
  margin: 18px 0 16px;
  background: var(--faq-line-soft);
  border: 1px solid var(--faq-line-soft);
  border-radius: var(--r-m);
  overflow: hidden;
}

@media (min-width: 760px) {
  .page-faq .faq-contact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-faq .faq-contact__row {
  display: grid;
  gap: 6px;
  padding: 14px 16px;
  background: var(--ink-700);
}

.page-faq .faq-contact__row dt {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--mist-500);
}

.page-faq .faq-contact__row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper-050);
  word-break: break-word;
}

.page-faq .faq-contact__note {
  margin: 0 0 22px;
  padding-left: 14px;
  border-left: 2px solid var(--green-500);
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(247, 241, 230, .74);
}

.page-faq .faq-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 动效收敛 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-item__summary::after,
  .page-faq .faq-index-link,
  .page-faq .faq-hero .breadcrumb-link {
    transition: none;
  }
}