/* ============ 常见问答 /questions/ ============ */

.page-faq .faq-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-bottom: 26px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: rgba(246, 243, 236, .60);
}
.page-faq .faq-crumb a {
  color: rgba(246, 243, 236, .84);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 180, 216, .45);
  transition: color .16s var(--ease), border-color .16s var(--ease);
}
.page-faq .faq-crumb a:hover,
.page-faq .faq-crumb a:focus-visible {
  color: var(--signal-cyan);
  border-color: var(--signal-cyan);
}

/* ---------- 封面 ---------- */
.page-faq .faq-cover {
  background:
    radial-gradient(115% 85% at 88% -5%, rgba(106, 43, 226, .60), transparent 62%),
    radial-gradient(85% 70% at 0% 108%, rgba(0, 180, 216, .20), transparent 62%),
    var(--indigo-night);
  border-radius: 0 0 var(--r-lg) var(--r-lg);
  padding-top: calc(var(--header-h) + 72px);
  padding-bottom: 68px;
  overflow: hidden;
}

.page-faq .faq-cover__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(252px, .82fr);
  grid-template-areas:
    "eyebrow index"
    "title   index"
    "lead    index";
  gap: 18px 56px;
  align-items: start;
}
.page-faq .faq-cover__inner > * { min-width: 0; }
.page-faq .faq-cover__inner > .faq-crumb { grid-column: 1 / -1; grid-row: 1; }
.page-faq .faq-cover__inner > .cover__eyebrow { grid-area: eyebrow; }
.page-faq .faq-cover__inner > .cover__title { grid-area: title; }
.page-faq .faq-cover__inner > .cover__lead { grid-area: lead; }
.page-faq .faq-cover__inner > .faq-jump { grid-area: index; }

.page-faq .cover__eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--amber-highland);
}
.page-faq .cover__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(32px, 6vw, 72px);
  line-height: 1.06;
  letter-spacing: .01em;
  color: var(--paper-ivory);
}
.page-faq .cover__lead {
  margin: 0;
  max-width: 30em;
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 1.8;
  color: rgba(246, 243, 236, .78);
}

.page-faq .faq-jump {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}
.page-faq .faq-jump li { margin: 0; }
.page-faq .faq-jump a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 10px 16px;
  border: 1px solid rgba(201, 197, 214, .24);
  border-radius: var(--r-pill);
  color: rgba(246, 243, 236, .86);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.4;
  transition: transform .16s var(--ease), background-color .16s var(--ease),
              border-color .16s var(--ease), color .16s var(--ease);
}
.page-faq .faq-jump a:hover,
.page-faq .faq-jump a:focus-visible {
  transform: translateX(4px);
  background: rgba(0, 180, 216, .14);
  border-color: var(--signal-cyan);
  color: #fff;
}
.page-faq .faq-jump__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--signal-cyan);
}

/* ---------- 顶部横图 ---------- */
.page-faq .faq-band { padding: 52px 0 4px; }
.page-faq .faq-band__frame { border-radius: var(--r-lg); }

/* ---------- 主体三栏 ---------- */
.page-faq .faq-body { padding-top: 44px; padding-bottom: 24px; }
.page-faq .faq-main { min-width: 0; }

.page-faq .faq-rail {
  display: grid;
  align-content: start;
  gap: 12px;
}
.page-faq .faq-rail__title {
  margin: 0 0 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.page-faq .faq-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}
.page-faq .faq-rail__list li { margin: 0; }
.page-faq .faq-rail__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 12px;
  border-left: 2px solid transparent;
  border-radius: var(--r-sm);
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.45;
  transition: transform .16s var(--ease), background-color .16s var(--ease),
              color .16s var(--ease), border-color .16s var(--ease);
}
.page-faq .faq-rail__list a:hover,
.page-faq .faq-rail__list a:focus-visible {
  transform: translateX(4px);
  background: var(--lilac-mist);
  color: var(--ink-graphite);
}
.page-faq .faq-rail__list a[aria-current="true"] {
  background: var(--lilac-mist);
  border-left-color: var(--signal-cyan);
  color: var(--ink-graphite);
  font-weight: 600;
}
.page-faq .faq-rail__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--cyan-ink);
}
.page-faq .faq-rail__cta { justify-self: start; margin-top: 6px; }

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  padding: 34px 0 30px;
  border-top: 1px solid var(--boundary-cloud);
  scroll-margin-top: calc(var(--header-h) + 24px);
}
.page-faq .faq-group:first-child {
  border-top: 0;
  padding-top: 0;
}
.page-faq .faq-group__head {
  display: flex;
  align-items: center;
  gap: 14px;
}
.page-faq .faq-group__title {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.2vw, 24px);
  line-height: 1.2;
  letter-spacing: .01em;
  color: var(--ink-graphite);
}
.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--pulse-violet);
}
.page-faq .faq-group__rule {
  flex: 1;
  height: 1px;
  background: var(--boundary-cloud);
}
.page-faq .faq-group__count {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--ink-mute);
  white-space: nowrap;
}
.page-faq .faq-group__lead {
  margin: 14px 0 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-mute);
}
.page-faq .faq-group__body {
  margin-top: 22px;
  display: grid;
  gap: 22px;
}
.page-faq .faq-group--split .faq-group__body {
  grid-template-columns: minmax(0, 1fr) 220px;
  align-items: start;
}
.page-faq .faq-list {
  display: grid;
  gap: 12px;
  margin: 0;
}

/* ---------- 折叠条目 ---------- */
.page-faq .qa {
  border: 1px solid var(--boundary-cloud);
  border-radius: var(--r-md);
  background: #fff;
  transition: border-color .16s var(--ease), box-shadow .16s var(--ease);
}
.page-faq .qa:hover { border-color: rgba(106, 43, 226, .45); }
.page-faq .qa[open] {
  border-color: rgba(0, 180, 216, .5);
  box-shadow: inset 3px 0 0 var(--signal-cyan), 0 12px 28px rgba(21, 12, 46, .07);
}
.page-faq .qa__trigger {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
}
.page-faq .qa__trigger::-webkit-details-marker { display: none; }
.page-faq .qa__trigger::marker { content: ""; }
.page-faq .qa__trigger:focus-visible {
  outline: 2px solid var(--signal-cyan);
  outline-offset: -2px;
  border-radius: var(--r-md);
}
.page-faq .qa__no {
  flex: none;
  width: 46px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--amber-highland);
}
.page-faq .qa__title {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ink-graphite);
}
.page-faq .qa__mark {
  flex: none;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  color: var(--pulse-violet);
  transition: transform .16s var(--ease), color .16s var(--ease);
}
.page-faq .qa[open] .qa__mark {
  transform: rotate(45deg);
  color: var(--cyan-ink);
}
.page-faq .qa__answer {
  padding: 2px 20px 20px 78px;
  background: var(--lilac-mist);
}
.page-faq .qa__answer p {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
}
.page-faq .qa__link { margin-top: 14px; }

/* ---------- 组尾回跳 ---------- */
.page-faq .faq-back {
  display: inline-flex;
  align-items: center;
  margin-top: 18px;
  padding: 7px 16px;
  border: 1px solid var(--boundary-cloud);
  border-radius: var(--r-pill);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--ink-mute);
  text-decoration: none;
  transition: transform .16s var(--ease), border-color .16s var(--ease),
              color .16s var(--ease);
}
.page-faq .faq-back:hover,
.page-faq .faq-back:focus-visible {
  transform: translateX(4px);
  border-color: var(--signal-cyan);
  color: var(--cyan-ink);
}

/* ---------- 侧图与旁注 ---------- */
.page-faq .faq-figure { margin: 0; }
.page-faq .faq-figure img { display: block; }

.page-faq .faq-aside {
  display: grid;
  align-content: start;
  gap: 16px;
}
.page-faq .faq-aside .note { font-family: var(--font-mono); }
.page-faq .faq-aside p.note__title {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--cyan-ink);
}
.page-faq .faq-aside .note p {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--ink-soft);
}

/* ---------- 收束面板 ---------- */
.page-faq .faq-help {
  border-radius: var(--r-lg);
  color: var(--paper-ivory);
}
.page-faq .faq-help__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, .85fr);
  gap: 36px 56px;
  align-items: start;
}
.page-faq .faq-help__eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--amber-highland);
}
.page-faq .faq-help__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.4vw, 40px);
  line-height: 1.15;
  color: var(--paper-ivory);
}
.page-faq .faq-help__text {
  margin: 16px 0 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(246, 243, 236, .78);
}
.page-faq .faq-help__list {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}
.page-faq .faq-help__list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.7;
  color: rgba(246, 243, 236, .86);
}
.page-faq .faq-help__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 8px;
  height: 8px;
  border-radius: var(--r-pill);
  background: var(--signal-cyan);
}
.page-faq .faq-help__chan {
  display: grid;
  align-content: start;
  gap: 12px;
  padding: 24px;
  border: 1px solid rgba(246, 243, 236, .24);
  border-radius: var(--r-md);
  background: rgba(246, 243, 236, .06);
}
.page-faq .faq-help__chan-title {
  margin: 0 0 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--amber-highland);
}
.page-faq .faq-help__line {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  color: var(--paper-ivory);
  word-break: break-word;
}
.page-faq .faq-help__lab {
  display: inline-block;
  min-width: 46px;
  color: rgba(246, 243, 236, .58);
}
.page-faq .faq-help__second { margin-top: 4px; }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .page-faq .faq-cover__inner {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas:
      "eyebrow"
      "title"
      "lead"
      "index";
    gap: 20px;
  }
  .page-faq .faq-cover__inner > .faq-crumb { grid-column: auto; grid-row: auto; }
  .page-faq .faq-jump { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .page-faq .faq-rail__list { display: flex; flex-wrap: wrap; gap: 6px; }
  .page-faq .faq-rail__list a {
    padding: 7px 14px;
    border: 1px solid var(--boundary-cloud);
    border-radius: var(--r-pill);
  }
  .page-faq .faq-rail__list a[aria-current="true"] { border-color: var(--signal-cyan); }

  .page-faq .faq-help__inner { grid-template-columns: minmax(0, 1fr); gap: 30px; }
}

@media (max-width: 900px) {
  .page-faq .faq-cover {
    padding-top: calc(var(--header-h) + 52px);
    padding-bottom: 52px;
  }
  .page-faq .faq-band { padding-top: 40px; }
  .page-faq .faq-body { padding-top: 34px; }
  .page-faq .faq-group--split .faq-group__body { grid-template-columns: minmax(0, 1fr); }
  .page-faq .faq-figure { max-width: 340px; }
  .page-faq .qa__no { width: auto; }
  .page-faq .qa__answer { padding: 2px 18px 18px; }
  .page-faq .qa__link { margin-top: 12px; }
}

@media (max-width: 620px) {
  .page-faq .faq-jump { grid-template-columns: minmax(0, 1fr); }
  .page-faq .faq-jump a { padding: 9px 14px; font-size: 13px; }
  .page-faq .cover__title { font-size: clamp(28px, 9vw, 40px); }
  .page-faq .faq-group__head { flex-wrap: wrap; gap: 10px; }
  .page-faq .faq-group__rule { display: none; }
  .page-faq .faq-group__count { margin-left: auto; }
  .page-faq .qa__trigger { gap: 10px; padding: 14px; }
  .page-faq .qa__title { font-size: 15px; }
  .page-faq .qa__answer { padding: 2px 14px 16px; }
  .page-faq .qa__answer p { font-size: 14px; }
  .page-faq .faq-help__chan { padding: 20px; }
}