.page-faq {
  --faq-gap: clamp(12px, 2vw, 20px);
  --faq-group-gap: clamp(38px, 6vw, 72px);
  --faq-line-soft: rgba(46, 74, 62, 0.72);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-top: clamp(18px, 4vw, 44px);
  padding-bottom: clamp(26px, 4vw, 48px);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
  align-items: end;
}

.page-faq .faq-hero__title {
  margin: 10px 0 16px;
  font-size: clamp(42px, 9vw, 98px);
  line-height: 0.94;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-faq .faq-hero__intro {
  max-width: 34em;
  margin: 0 0 22px;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: rgba(234, 242, 238, 0.84);
}

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

.page-faq .faq-hero__note {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 16px 14px 18px;
  border-left: 2px solid var(--red);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: linear-gradient(180deg, rgba(23, 56, 45, 0.85), rgba(7, 17, 14, 0.2));
}

.page-faq .faq-hero__note .vert-note {
  writing-mode: horizontal-tb;
  color: var(--yellow);
  font-size: 12px;
  letter-spacing: 0.16em;
  margin: 0;
  flex: none;
}

.page-faq .faq-hero__note-text {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--fog);
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.65fr) minmax(0, 0.75fr);
  }
  .page-faq .faq-hero__note {
    flex-direction: column;
    gap: 18px;
  }
  .page-faq .faq-hero__note .vert-note {
    writing-mode: vertical-rl;
    letter-spacing: 0.24em;
  }
}

/* ---------- 区块标题 ---------- */
.page-faq .faq-head {
  margin-bottom: clamp(18px, 3vw, 28px);
}

.page-faq .faq-h2 {
  margin: 0 0 8px;
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-faq .faq-head__sub {
  margin: 0;
  font-size: 14px;
  color: var(--fog);
}

/* ---------- 快速入口 Bento ---------- */
.page-faq .faq-quick {
  padding-top: clamp(10px, 2vw, 20px);
}

.page-faq .faq-bento {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--faq-gap);
}

.page-faq .faq-tile {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 6px;
  min-height: 124px;
  padding: 16px;
  overflow: hidden;
  text-decoration: none;
  color: var(--white);
  background: linear-gradient(160deg, var(--ink-soft), var(--ink));
  transition: transform 200ms var(--ease), border-color 200ms var(--ease);
}

.page-faq .faq-tile:hover,
.page-faq .faq-tile:focus-visible {
  transform: translateY(-2px);
  border-color: var(--yellow);
}

.page-faq .faq-tile--hero {
  grid-column: span 2;
  min-height: 250px;
  justify-content: flex-end;
  gap: 8px;
  padding: 20px;
}

.page-faq .faq-tile__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
  z-index: 0;
}

.page-faq .faq-tile--hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 17, 14, 0.15) 0%, rgba(7, 17, 14, 0.88) 68%);
  z-index: 0;
}

.page-faq .faq-tile--hero .faq-tile__tag,
.page-faq .faq-tile--hero .faq-tile__title,
.page-faq .faq-tile--hero .faq-tile__desc {
  position: relative;
  z-index: 1;
}

.page-faq .faq-tile__icon {
  width: 26px;
  height: 26px;
  margin-bottom: 2px;
  color: var(--yellow);
}

.page-faq .faq-tile__tag {
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ink);
  background: var(--yellow);
  border-radius: 999px;
  padding: 3px 10px;
}

.page-faq .faq-tile__title {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
}

.page-faq .faq-tile--hero .faq-tile__title {
  font-size: clamp(24px, 3.6vw, 34px);
  line-height: 1.15;
}

.page-faq .faq-tile__desc {
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--fog);
}

.page-faq .faq-tile--hero .faq-tile__desc {
  max-width: 26em;
  font-size: 13.5px;
  color: rgba(234, 242, 238, 0.78);
}

@media (min-width: 760px) {
  .page-faq .faq-bento {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-faq .faq-tile--hero {
    grid-column: span 2;
    grid-row: span 2;
    min-height: 100%;
  }
}

/* ---------- 问答看板 ---------- */
.page-faq .faq-board {
  padding-top: clamp(24px, 4vw, 44px);
}

.page-faq .faq-board__grid {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
}

.page-faq .faq-index__label {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-family: var(--font-mono);
  color: var(--fog);
}

.page-faq .faq-index__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__link {
  display: block;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 13.5px;
  color: var(--fog);
  text-decoration: none;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--white);
  border-color: var(--yellow);
}

.page-faq .faq-index__cta {
  display: inline-block;
  font-size: 13px;
  color: var(--yellow);
  text-decoration: none;
  border-bottom: 1px dashed rgba(242, 194, 48, 0.45);
  padding-bottom: 2px;
}

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

@media (min-width: 1024px) {
  .page-faq .faq-board__grid {
    grid-template-columns: 216px minmax(0, 1fr);
    gap: clamp(28px, 4vw, 56px);
    align-items: start;
  }
  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
  .page-faq .faq-index__list {
    display: block;
    margin-bottom: 20px;
  }
  .page-faq .faq-index__list li + li {
    margin-top: 2px;
  }
  .page-faq .faq-index__link {
    border: none;
    border-left: 2px solid var(--line);
    border-radius: 0;
    padding: 9px 0 9px 14px;
    font-size: 14px;
    background: transparent;
  }
  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    border-left-color: var(--yellow);
    color: var(--white);
  }
}

/* ---------- 问题分组 ---------- */
.page-faq .faq-group {
  margin-bottom: var(--faq-group-gap);
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.page-faq .faq-group__head {
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-group__num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--yellow);
}

.page-faq .faq-group__title {
  margin: 6px 0 6px;
  font-size: clamp(22px, 3.2vw, 32px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-faq .faq-group__hint {
  margin: 0;
  font-size: 13px;
  color: var(--fog);
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-item {
  margin-bottom: 10px;
  border: 1px solid var(--faq-line-soft);
  border-left: 3px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(23, 56, 45, 0.55), rgba(7, 17, 14, 0.9));
  transition: border-color 200ms var(--ease), background 200ms var(--ease);
}

.page-faq .faq-item[open] {
  border-left-color: var(--red);
  background: linear-gradient(160deg, rgba(23, 56, 45, 0.9), rgba(7, 17, 14, 0.95));
}

.page-faq .faq-item__summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item__q {
  margin: 0;
  font-size: clamp(15px, 1.7vw, 16.5px);
  font-weight: 700;
  line-height: 1.55;
  color: var(--white);
}

.page-faq .faq-item__mark {
  flex: none;
  width: 10px;
  height: 10px;
  margin-top: 7px;
  border-radius: 50%;
  background: var(--line);
  transition: background 200ms var(--ease), box-shadow 200ms var(--ease);
}

.page-faq .faq-item[open] .faq-item__mark {
  background: var(--yellow);
  box-shadow: 0 0 0 4px rgba(242, 194, 48, 0.16);
}

.page-faq .faq-item__a {
  padding: 0 16px 16px;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(234, 242, 238, 0.76);
}

.page-faq .faq-item__a p {
  margin: 0;
}

.page-faq .faq-item__link {
  color: var(--yellow);
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 194, 48, 0.4);
}

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

/* ---------- iOS 区块 ---------- */
.page-faq .faq-ios {
  display: grid;
  gap: clamp(14px, 2.5vw, 24px);
}

.page-faq .faq-ios__media {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--faq-line-soft);
  background: var(--pit);
}

.page-faq .faq-ios__media img {
  display: block;
  width: 100%;
  height: 100%;
  max-height: 420px;
  object-fit: cover;
}

.page-faq .faq-ios__media .media__caption {
  padding: 10px 14px;
  font-size: 12px;
  color: var(--fog);
  border-top: 1px solid var(--faq-line-soft);
}

@media (min-width: 860px) {
  .page-faq .faq-ios {
    grid-template-columns: minmax(0, 0.62fr) minmax(0, 1fr);
    align-items: start;
  }
  .page-faq .faq-ios__media img {
    max-height: none;
    aspect-ratio: 3 / 4;
  }
}

/* ---------- 纠错联系 ---------- */
.page-faq .faq-fix {
  margin-top: 14px;
  padding: clamp(16px, 2.6vw, 24px);
  border: 1px solid var(--faq-line-soft);
  border-top: 2px solid var(--red);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--pit), var(--ink-soft));
  display: grid;
  gap: 14px;
}

.page-faq .faq-fix__lead {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--fog);
}

.page-faq .faq-fix__list {
  margin: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-fix__row {
  display: grid;
  gap: 2px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--faq-line-soft);
}

.page-faq .faq-fix__row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-faq .faq-fix__row dt {
  font-size: 11px;
  letter-spacing: 0.16em;
  font-family: var(--font-mono);
  color: var(--yellow);
  text-transform: uppercase;
}

.page-faq .faq-fix__row dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(15px, 2vw, 19px);
  color: var(--white);
  word-break: break-word;
}

.page-faq .faq-fix__row dd a {
  color: var(--white);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-fix__row dd a:hover,
.page-faq .faq-fix__row dd a:focus-visible {
  color: var(--yellow);
  border-bottom-color: var(--yellow);
}

.page-faq .faq-fix__btn {
  justify-self: start;
}

@media (min-width: 620px) {
  .page-faq .faq-fix__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
  }
  .page-faq .faq-fix__row {
    padding: 0 14px;
    border-bottom: none;
    border-left: 1px solid var(--faq-line-soft);
  }
  .page-faq .faq-fix__row:first-child {
    padding-left: 0;
    border-left: none;
  }
}

/* ---------- 隐私与条款 ---------- */
.page-faq .faq-legal {
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .faq-legal__card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px;
  text-decoration: none;
  color: var(--white);
  background: linear-gradient(160deg, var(--ink-soft), var(--ink));
  transition: border-color 200ms var(--ease), transform 200ms var(--ease);
}

.page-faq .faq-legal__card:hover,
.page-faq .faq-legal__card:focus-visible {
  border-color: var(--yellow);
  transform: translateY(-2px);
}

.page-faq .faq-legal__tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--fog);
}

.page-faq .faq-legal__title {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.45;
}

.page-faq .faq-legal__desc {
  font-size: 13px;
  line-height: 1.75;
  color: var(--fog);
}

.page-faq .faq-legal__more {
  margin-top: 4px;
  font-size: 12.5px;
  color: var(--yellow);
}

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

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-tile,
  .page-faq .faq-legal__card,
  .page-faq .faq-item,
  .page-faq .faq-item__mark {
    transition: none;
  }
  .page-faq .faq-tile:hover,
  .page-faq .faq-tile:focus-visible,
  .page-faq .faq-legal__card:hover,
  .page-faq .faq-legal__card:focus-visible {
    transform: none;
  }
}