/* ============ 问答索引 /questions/ ============ */
.page-faq {
  --faq-index-w: 238px;
  display: block;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(22px, 3.6vw, 44px) 0 clamp(30px, 4.4vw, 58px);
  border-bottom: 1px solid var(--edge);
  background:
    radial-gradient(120% 150% at 10% -20%, rgba(23, 224, 176, 0.10) 0%, rgba(6, 26, 28, 0) 58%),
    linear-gradient(180deg, var(--panel) 0%, rgba(6, 26, 28, 0.4) 100%);
  overflow: hidden;
}

.page-faq .faq-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 46px);
  align-items: end;
}

@media (min-width: 940px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  }
}

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

.page-faq .faq-hero__text .eyebrow {
  margin-top: clamp(18px, 2.6vw, 30px);
}

.page-faq .faq-hero__title {
  margin: 12px 0 0;
  font-size: clamp(27px, 4.6vw, 50px);
  line-height: 1.16;
  letter-spacing: -0.02em;
  font-weight: 700;
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 46ch;
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.82;
  color: var(--muted);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 26px;
  margin-top: 26px;
  padding-top: 16px;
  border-top: 1px solid var(--edge);
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

.page-faq .faq-hero__meta b {
  font-family: var(--mono);
  font-size: 14.5px;
  font-weight: 600;
  color: var(--live);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-hero__figure {
  margin: 0;
  min-width: 0;
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
}

.page-faq .faq-hero__figure .media-frame__caption {
  font-size: 12.5px;
  color: var(--muted);
}

.page-faq .faq-hero__side {
  display: none;
}

@media (min-width: 1080px) {
  .page-faq .faq-hero__side {
    display: block;
    position: absolute;
    right: clamp(4px, 1.2vw, 20px);
    top: 50%;
    transform: translateY(-50%);
    writing-mode: vertical-rl;
    font-family: var(--mono);
    font-size: 11.5px;
    letter-spacing: 0.44em;
    color: var(--edge);
    pointer-events: none;
  }
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-faq .breadcrumb a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 200ms ease, border-color 200ms ease;
}

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--live-soft);
  border-bottom-color: var(--live);
}

.page-faq .breadcrumb [aria-current="page"] {
  color: var(--text);
}

/* ---------- 索引 + 面板骨架 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 54px);
  padding-top: clamp(28px, 4.4vw, 58px);
  padding-bottom: clamp(46px, 6vw, 92px);
}

@media (min-width: 1000px) {
  .page-faq .faq-body {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    align-items: start;
  }
}

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

/* ---------- 左侧索引册 ---------- */
.page-faq .faq-index {
  border: 1px solid var(--edge);
  background: var(--panel);
  padding: 14px 14px 16px;
}

@media (min-width: 1000px) {
  .page-faq .faq-index {
    position: sticky;
    top: 104px;
  }
}

.page-faq .faq-index__title {
  margin: 0;
  padding: 0 6px 12px;
  border-bottom: 1px solid var(--edge);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--muted);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 8px 9px 10px;
  border-left: 2px solid transparent;
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.5;
  transition: color 200ms ease, border-color 200ms ease, background-color 200ms ease;
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--text);
  background: var(--panel-2);
  border-left-color: var(--live);
}

.page-faq .faq-index__idx {
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--season);
}

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

/* ---------- 问答分组 ---------- */
.page-faq .faq-group {
  scroll-margin-top: 108px;
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(38px, 5.4vw, 66px);
}

.page-faq .faq-group__head {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
  padding-bottom: 15px;
  border-bottom: 1px solid var(--edge);
}

.page-faq .faq-group__head::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 1px;
  background: linear-gradient(90deg, var(--live) 0%, rgba(23, 224, 176, 0.25) 62%, rgba(23, 224, 176, 0) 100%);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 280ms ease;
}

.page-faq .faq-group:has(.qa[open]) .faq-group__head::after {
  transform: scaleX(1);
}

.page-faq .faq-group__num {
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--season);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(21px, 2.6vw, 30px);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-faq .faq-group__lead {
  flex: 1 1 100%;
  margin: 0;
  max-width: 54ch;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-link {
  color: var(--live-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(124, 255, 216, 0.4);
  transition: color 200ms ease, border-color 200ms ease;
}

.page-faq .faq-link:hover,
.page-faq .faq-link:focus-visible {
  color: var(--live);
  border-bottom-color: var(--live);
}

/* ---------- 可展开问答 ---------- */
.page-faq .qa-list {
  display: grid;
  gap: 10px;
  margin-top: 20px;
}

.page-faq .qa {
  border: 1px solid var(--edge);
  background: linear-gradient(180deg, rgba(16, 61, 58, 0.36) 0%, rgba(12, 43, 42, 0.12) 100%);
  transition: border-color 220ms ease, background-color 220ms ease;
}

.page-faq .qa[open] {
  border-color: rgba(23, 224, 176, 0.55);
  background: var(--panel);
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
  font-size: clamp(15px, 1.45vw, 17px);
  font-weight: 600;
  line-height: 1.6;
  color: var(--text);
  transition: color 200ms ease;
}

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

.page-faq .qa__q::marker {
  content: "";
}

.page-faq .qa__q:hover,
.page-faq .qa__q:focus-visible {
  color: var(--live-soft);
}

.page-faq .qa__q-text {
  min-width: 0;
}

.page-faq .qa__mark {
  position: relative;
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
  margin-top: 4px;
  border: 1px solid var(--edge);
  transition: border-color 220ms ease;
}

.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  left: 3px;
  right: 3px;
  top: 50%;
  height: 1px;
  background: var(--muted);
  transform: translateY(-50%);
  transition: opacity 220ms ease, background-color 220ms ease, transform 220ms ease;
}

.page-faq .qa__mark::after {
  transform: translateY(-50%) rotate(90deg);
}

.page-faq .qa[open] .qa__mark {
  border-color: var(--live);
}

.page-faq .qa[open] .qa__mark::before,
.page-faq .qa[open] .qa__mark::after {
  background: var(--live);
}

.page-faq .qa[open] .qa__mark::after {
  opacity: 0;
  transform: translateY(-50%) rotate(90deg) scaleX(0.2);
}

.page-faq .qa__a {
  padding: 0 18px 18px;
}

.page-faq .qa__a p {
  margin: 0;
  padding-left: 16px;
  border-left: 2px solid rgba(23, 224, 176, 0.6);
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.82;
  color: var(--muted);
}

.page-faq .qa__a p + p {
  margin-top: 10px;
}

.page-faq .qa__a .fig {
  font-family: var(--mono);
  font-size: 0.96em;
  font-weight: 600;
  color: var(--live-soft);
  font-variant-numeric: tabular-nums;
}

/* ---------- 纠错章节配图 ---------- */
.page-faq .faq-figure {
  margin: clamp(26px, 3.6vw, 40px) 0 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
}

.page-faq .faq-figure .media-frame__caption {
  font-size: 12.5px;
  color: var(--muted);
}

/* ---------- 人工协助 ---------- */
.page-faq .faq-help__text {
  margin: 18px 0 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.82;
  color: var(--muted);
}

.page-faq .faq-contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin-top: 22px;
  border: 1px solid var(--edge);
  background: var(--edge);
}

@media (min-width: 660px) {
  .page-faq .faq-contact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-faq .faq-contact__item {
  min-width: 0;
  padding: 16px 18px;
  background: var(--panel);
}

.page-faq .faq-contact__label {
  margin: 0;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-faq .faq-contact__value {
  margin: 9px 0 0;
  font-size: 15px;
  line-height: 1.65;
  color: var(--text);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-faq .faq-contact__value.num {
  letter-spacing: 0.02em;
}

.page-faq .faq-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 24px;
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .qa__mark,
  .page-faq .qa__mark::before,
  .page-faq .qa__mark::after,
  .page-faq .qa__q,
  .page-faq .faq-group__head::after,
  .page-faq .faq-index__link,
  .page-faq .faq-link,
  .page-faq .breadcrumb a {
    transition: none;
  }
}