.page-faq {
  --faq-rail: 292px;
  --faq-gap: clamp(26px, 4vw, 60px);
  --faq-pad: clamp(30px, 6vw, 88px);
  position: relative;
  padding-bottom: clamp(56px, 9vw, 120px);
  background-image:
    linear-gradient(rgba(143, 163, 200, .055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(143, 163, 200, .055) 1px, transparent 1px);
  background-size: 76px 76px;
  background-position: center top;
}

.page-faq .faq-crumb {
  padding-top: clamp(18px, 3vw, 30px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
  padding: clamp(26px, 4vw, 44px) 0 clamp(34px, 5vw, 62px);
  align-items: end;
}

.page-faq .faq-hero__title {
  font-size: clamp(38px, 8.6vw, 74px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  margin: 14px 0 0;
}

.page-faq .faq-hero__lede {
  margin-top: 20px;
  max-width: 46ch;
  color: var(--mist);
}

.page-faq .faq-quick {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-quick__link {
  display: inline-block;
  padding: 9px 18px;
  border-radius: var(--pill);
  border: 1px solid var(--line-strong);
  background: rgba(17, 26, 51, .7);
  color: var(--ice);
  font-size: 14px;
  line-height: 1.2;
  text-decoration: none;
  transition: border-color .25s ease, transform .25s ease, color .25s ease, background-color .25s ease;
}

.page-faq .faq-quick__link:hover,
.page-faq .faq-quick__link:focus-visible {
  border-color: var(--orange);
  color: var(--orange);
  background: rgba(255, 107, 26, .08);
  transform: translateY(-2px);
}

.page-faq .faq-quick__link:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

.page-faq .faq-hero__media {
  position: relative;
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background:
    radial-gradient(120% 90% at 78% 8%, rgba(255, 107, 26, .18), transparent 58%),
    linear-gradient(160deg, #111A33 0%, #0B1020 78%);
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 3 / 2;
  mix-blend-mode: luminosity;
  opacity: .9;
}

.page-faq .faq-hero__caption {
  position: absolute;
  left: 20px;
  bottom: 16px;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--mist);
  background: rgba(11, 16, 32, .72);
  border: 1px solid var(--line);
  border-radius: var(--pill);
  padding: 5px 12px;
}

/* ---------- 双栏骨架 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  align-items: start;
}

/* ---------- 问题索引 ---------- */
.page-faq .faq-index {
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: linear-gradient(180deg, rgba(17, 26, 51, .92), rgba(11, 16, 32, .92));
  padding: 22px 20px;
}

.page-faq .faq-index__title {
  margin: 0 0 16px;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--mist);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 4px;
}

.page-faq .faq-index__link {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 11px 12px;
  border-radius: var(--r-sm);
  border: 1px solid transparent;
  text-decoration: none;
  color: var(--ice);
  transition: background-color .25s ease, border-color .25s ease, transform .25s ease;
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  background: rgba(255, 107, 26, .07);
  border-color: rgba(255, 107, 26, .55);
  transform: translateY(-2px);
}

.page-faq .faq-index__link:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

.page-faq .faq-index__num {
  font-size: 13px;
  color: var(--orange);
  padding-top: 2px;
}

.page-faq .faq-index__body {
  display: block;
  min-width: 0;
}

.page-faq .faq-index__label {
  display: block;
  font-weight: 700;
  font-size: 15px;
  line-height: 1.35;
}

.page-faq .faq-index__desc {
  display: block;
  margin-top: 3px;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--mist);
}

.page-faq .faq-index__hint {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 答案流 ---------- */
.page-faq .faq-flow {
  min-width: 0;
  display: grid;
  gap: clamp(34px, 5vw, 64px);
}

.page-faq .faq-section {
  scroll-margin-top: calc(var(--bar-h) + 26px);
  min-width: 0;
}

.page-faq .faq-section__head {
  display: grid;
  gap: 6px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line-strong);
  margin-bottom: 20px;
}

.page-faq .faq-section__num {
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--amber);
}

.page-faq .faq-section__title {
  margin: 0;
  font-size: clamp(24px, 4.2vw, 34px);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.page-faq .faq-section__sub {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 问答折叠块 ---------- */
.page-faq .faq-q {
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: rgba(17, 26, 51, .62);
  margin-bottom: 10px;
  overflow: hidden;
  transition: border-color .25s ease, background-color .25s ease;
}

.page-faq .faq-q:hover {
  border-color: var(--line-strong);
}

.page-faq .faq-q[open] {
  border-color: rgba(255, 107, 26, .42);
  background: rgba(17, 26, 51, .86);
}

.page-faq .faq-q__ask {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 20px;
  cursor: pointer;
  font-weight: 700;
  font-size: 16px;
  line-height: 1.5;
  color: var(--ice);
  list-style: none;
}

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

.page-faq .faq-q__ask::after {
  content: "＋";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--orange);
  padding-top: 1px;
}

.page-faq .faq-q[open] .faq-q__ask::after {
  content: "－";
}

.page-faq .faq-q__ask:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: -2px;
}

.page-faq .faq-q__ans {
  padding: 0 20px 18px;
  color: var(--mist);
  font-size: 15.5px;
  line-height: 1.75;
}

.page-faq .faq-q__ans p {
  margin: 0 0 10px;
}

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

.page-faq .faq-q__tip {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  font-size: 13.5px;
}

.page-faq .faq-link {
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 176, 32, .45);
  transition: color .2s ease, border-color .2s ease;
}

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

.page-faq .faq-link:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

/* ---------- 步骤条 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-steps__item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  position: relative;
}

.page-faq .faq-steps__item::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 34px;
  bottom: -12px;
  width: 1px;
  background: linear-gradient(180deg, rgba(255, 107, 26, .5), rgba(143, 163, 200, .12));
}

.page-faq .faq-steps__item:last-child::before {
  display: none;
}

.page-faq .faq-steps__num {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 12px;
  border: 1px solid rgba(255, 107, 26, .5);
  background: rgba(255, 107, 26, .12);
  color: var(--orange);
  font-size: 13px;
  position: relative;
  z-index: 1;
}

.page-faq .faq-steps__body strong {
  display: block;
  color: var(--ice);
  font-size: 15px;
  line-height: 1.5;
}

.page-faq .faq-steps__body p {
  margin: 3px 0 0;
  color: var(--mist);
  font-size: 14.5px;
  line-height: 1.7;
}

.page-faq .faq-steps--tight {
  gap: 10px;
}

/* ---------- 对照维度 ---------- */
.page-faq .faq-dims {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-dims__item {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--violet);
  border-radius: var(--r-sm);
  background: linear-gradient(100deg, rgba(124, 92, 255, .10), rgba(17, 26, 51, .6) 42%);
  transition: transform .25s ease, border-color .25s ease;
}

.page-faq .faq-dims__item:hover {
  transform: translateY(-3px);
  border-color: var(--line-strong);
  border-left-color: var(--orange);
}

.page-faq .faq-dims__key {
  font-size: 13px;
  color: var(--ice);
  letter-spacing: .08em;
  padding-top: 2px;
}

.page-faq .faq-dims__item strong {
  display: block;
  font-size: 15.5px;
  color: var(--ice);
  line-height: 1.45;
}

.page-faq .faq-dims__item p {
  margin: 4px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 客服区 ---------- */
.page-faq .faq-section--support .faq-section__head {
  border-bottom-color: rgba(255, 107, 26, .38);
}

.page-faq .faq-support {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 34px);
  align-items: start;
}

.page-faq .faq-support__media {
  margin: 0;
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--line);
  background: linear-gradient(150deg, #111A33, #0B1020);
}

.page-faq .faq-support__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 5 / 3;
  opacity: .88;
}

.page-faq .faq-support__lead {
  margin: 0 0 18px;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-support__list {
  margin: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-support__row {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 12px;
  padding: 12px 2px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-support__key {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--amber);
  padding-top: 3px;
}

.page-faq .faq-support__val {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ice);
  word-break: break-word;
}

.page-faq .faq-support__more {
  margin: 16px 0 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 回顶 ---------- */
.page-faq .faq-top {
  margin: 0;
  padding-top: 8px;
  border-top: 1px solid var(--line);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  }

  .page-faq .faq-section__head {
    grid-template-columns: auto minmax(0, 1fr);
    align-items: baseline;
    column-gap: 14px;
  }

  .page-faq .faq-section__num {
    grid-row: span 2;
  }

  .page-faq .faq-support {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--bar-h) + 26px);
    max-height: calc(100vh - var(--bar-h) - 52px);
    overflow-y: auto;
  }

  .page-faq .faq-hero__title {
    font-size: clamp(56px, 5.6vw, 82px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-quick__link,
  .page-faq .faq-index__link,
  .page-faq .faq-dims__item,
  .page-faq .faq-q {
    transition: none;
  }

  .page-faq .faq-quick__link:hover,
  .page-faq .faq-index__link:hover,
  .page-faq .faq-dims__item:hover {
    transform: none;
  }
}