.page-faq {
  --faq-line: #E4EAF3;
  --faq-soft: #F7F9FC;
  --faq-body: #41546B;
  --faq-radius: 18px;
  color: var(--ds-ink);
  background: var(--ds-paper);
}

/* ---------- 首屏框景 ---------- */
.page-faq .faq-hero {
  padding: 18px 0 6px;
}

.page-faq .faq-hero__panel {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--faq-line);
  border-radius: 22px;
  background: linear-gradient(165deg, #FFFFFF 0%, var(--ds-grey) 100%);
  padding: 22px 18px 26px;
}

.page-faq .faq-hero__panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 96px;
  height: 4px;
  background: var(--ds-orange);
}

.page-faq .faq-hero__panel::after {
  content: "";
  position: absolute;
  right: -70px;
  bottom: -80px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(220, 230, 247, .95), rgba(220, 230, 247, 0));
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 26px;
  min-width: 0;
}

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

.page-faq .faq-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 14px 0 0;
  padding: 6px 13px;
  border-radius: 999px;
  background: var(--ds-mist);
  color: var(--ds-blue);
  font-family: var(--ds-mono);
  font-size: 12px;
  letter-spacing: .1em;
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  font-family: var(--ds-serif);
  font-size: clamp(28px, 7vw, 52px);
  line-height: 1.14;
  letter-spacing: -.01em;
  color: var(--ds-blue);
}

.page-faq .faq-hero__lead {
  margin: 14px 0 0;
  max-width: 34em;
  font-size: 16.5px;
  line-height: 1.8;
  color: var(--faq-body);
}

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

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: 14px;
  object-fit: cover;
  aspect-ratio: 12 / 7;
  box-shadow: 0 22px 46px -34px rgba(11, 61, 145, .7);
}

/* ---------- 搜索与入口 ---------- */
.page-faq .faq-search {
  margin-top: 24px;
}

.page-faq .faq-search__label {
  display: block;
  margin-bottom: 8px;
  font-family: var(--ds-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ds-mid);
}

.page-faq .faq-search__field {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 16px;
  border: 1px solid var(--faq-line);
  border-radius: 999px;
  background: #FFFFFF;
  transition: border-color .2s var(--ds-ease), box-shadow .2s var(--ds-ease);
}

.page-faq .faq-search__field:focus-within {
  border-color: var(--ds-blue);
  box-shadow: 0 0 0 3px rgba(11, 61, 145, .13);
}

.page-faq .faq-search__field svg {
  flex: none;
  width: 18px;
  height: 18px;
  color: var(--ds-blue);
}

.page-faq .faq-search__field input {
  flex: 1 1 auto;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  font: inherit;
  font-size: 16px;
  color: var(--ds-ink);
}

.page-faq .faq-search__field input::placeholder {
  color: var(--ds-mid);
}

.page-faq .faq-search__hint {
  margin: 9px 0 0;
  font-size: 13px;
  color: var(--ds-mid);
}

.page-faq .faq-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.page-faq .faq-chip {
  display: inline-block;
  padding: 7px 14px;
  border: 1px solid var(--faq-line);
  border-radius: 999px;
  background: #FFFFFF;
  color: var(--ds-ink);
  font-size: 13.5px;
  text-decoration: none;
  transition: border-color .2s var(--ds-ease), color .2s var(--ds-ease), background .2s var(--ds-ease);
}

.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  border-color: var(--ds-orange);
  background: #FFF4ED;
  color: var(--ds-navy);
}

/* ---------- 通用栏目头 ---------- */
.page-faq .faq-section__head {
  max-width: 720px;
}

.page-faq .faq-section__eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-family: var(--ds-mono);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ds-mid);
}

.page-faq .faq-section__eyebrow--light {
  color: rgba(251, 252, 254, .7);
}

.page-faq .faq-section__tick {
  display: inline-block;
  width: 22px;
  height: 2px;
  background: var(--ds-orange);
}

.page-faq .faq-section__title {
  margin: 12px 0 0;
  font-family: var(--ds-serif);
  font-size: clamp(23px, 5vw, 34px);
  line-height: 1.24;
  letter-spacing: -.01em;
  color: var(--ds-ink);
}

.page-faq .faq-section__title--light {
  color: var(--ds-paper);
}

.page-faq .faq-section__lead {
  margin: 12px 0 0;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--faq-body);
}

/* ---------- 热门问题 ---------- */
.page-faq .faq-hot-section {
  padding: 40px 0 4px;
}

.page-faq .faq-hot {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

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

.page-faq .faq-hot__item a {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 15px 16px;
  border: 1px solid var(--faq-line);
  border-left: 3px solid var(--ds-mist);
  border-radius: 14px;
  background: #FFFFFF;
  color: var(--ds-ink);
  text-decoration: none;
  transition: border-color .2s var(--ds-ease), background .2s var(--ds-ease), transform .2s var(--ds-ease);
}

.page-faq .faq-hot__item a:hover,
.page-faq .faq-hot__item a:focus-visible {
  border-left-color: var(--ds-orange);
  background: var(--faq-soft);
  transform: translateX(3px);
}

.page-faq .faq-hot__num {
  font-family: var(--ds-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--ds-orange);
  letter-spacing: .04em;
}

.page-faq .faq-hot__text {
  font-size: 15.5px;
  line-height: 1.6;
  font-weight: 600;
  min-width: 0;
}

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

/* ---------- 五步路径 ---------- */
.page-faq .faq-steps {
  margin-top: 42px;
  padding: 40px 0 46px;
  background: linear-gradient(150deg, var(--ds-blue) 0%, var(--ds-navy) 72%);
  color: var(--ds-paper);
}

.page-faq .faq-steps__head {
  display: grid;
  gap: 16px;
}

.page-faq .faq-steps__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  align-self: start;
  padding: 7px 14px;
  border: 1px solid rgba(251, 252, 254, .28);
  border-radius: 999px;
  font-size: 12.5px;
  color: rgba(251, 252, 254, .82);
}

.page-faq .faq-steps__badge .num {
  color: var(--ds-orange-soft);
  font-family: var(--ds-mono);
  letter-spacing: .06em;
}

.page-faq .faq-flow {
  display: block;
  width: 100%;
  height: auto;
  margin: 22px 0 6px;
}

.page-faq .faq-flow__pulse {
  animation: faq-pulse 9s linear infinite;
}

@keyframes faq-pulse {
  from { stroke-dashoffset: 0; }
  to { stroke-dashoffset: -976; }
}

.page-faq .faq-steps__list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 20px;
}

.page-faq .faq-step {
  min-width: 0;
  padding-top: 14px;
  border-top: 2px solid rgba(255, 176, 136, .5);
}

.page-faq .faq-step__num {
  display: block;
  font-family: var(--ds-mono);
  font-size: 32px;
  line-height: 1;
  color: var(--ds-orange-soft);
  letter-spacing: .02em;
}

.page-faq .faq-step__title {
  margin: 10px 0 6px;
  font-size: 17px;
  line-height: 1.4;
  font-weight: 700;
  color: var(--ds-paper);
}

.page-faq .faq-step__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(251, 252, 254, .78);
}

.page-faq .faq-step__text a {
  color: var(--ds-orange-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 分类问答 ---------- */
.page-faq .faq-docs {
  padding: 44px 0 10px;
}

.page-faq .faq-docs__grid {
  display: grid;
  gap: 30px;
  min-width: 0;
}

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

.page-faq .faq-side__sticky {
  display: grid;
  gap: 16px;
}

.page-faq .faq-side__figure {
  margin: 0;
}

.page-faq .faq-side__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: 14px;
  object-fit: cover;
  aspect-ratio: 10 / 7;
}

.page-faq .faq-side__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-side__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 13px;
  border: 1px solid var(--faq-line);
  border-radius: 10px;
  background: #FFFFFF;
  color: var(--ds-ink);
  font-size: 14px;
  text-decoration: none;
  transition: border-color .2s var(--ds-ease), background .2s var(--ds-ease);
}

.page-faq .faq-side__link:hover,
.page-faq .faq-side__link:focus-visible {
  border-color: var(--ds-blue);
  background: var(--faq-soft);
}

.page-faq .faq-side__num {
  font-family: var(--ds-mono);
  font-size: 12px;
  color: var(--ds-orange);
}

.page-faq .faq-side__count {
  font-family: var(--ds-mono);
  font-size: 11.5px;
  color: var(--ds-mid);
}

.page-faq .faq-side__note {
  margin: 0;
  padding: 12px 14px;
  border-left: 3px solid var(--ds-orange);
  border-radius: 0 10px 10px 0;
  background: var(--faq-soft);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--faq-body);
}

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

.page-faq .faq-group {
  margin-top: 26px;
  border-top: 2px solid var(--ds-blue);
}

.page-faq .faq-group__title {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0;
  padding: 16px 4px 10px;
  font-size: 19px;
  line-height: 1.4;
  font-weight: 700;
  color: var(--ds-blue);
}

.page-faq .faq-group__num {
  font-family: var(--ds-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--ds-orange);
}

/* ---------- 手风琴 ---------- */
.page-faq .qa {
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 4px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  line-height: 1.6;
  font-weight: 600;
  color: var(--ds-ink);
  transition: color .2s var(--ds-ease);
}

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

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

.page-faq .qa__q:hover {
  color: var(--ds-blue);
}

.page-faq .qa[open] .qa__q {
  color: var(--ds-blue);
}

.page-faq .qa__num {
  flex: none;
  padding-top: 3px;
  font-family: var(--ds-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--ds-orange);
}

.page-faq .qa__text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .qa__state {
  position: relative;
  flex: none;
  width: 14px;
  height: 14px;
  margin-top: 5px;
}

.page-faq .qa__state::before,
.page-faq .qa__state::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  width: 14px;
  height: 2px;
  background: var(--ds-blue);
  transition: transform .22s var(--ds-ease), opacity .22s var(--ds-ease);
}

.page-faq .qa__state::after {
  transform: rotate(90deg);
}

.page-faq .qa[open] .qa__state::after {
  transform: rotate(0deg);
  opacity: 0;
}

.page-faq .qa__a {
  padding: 0 4px 18px 34px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--faq-body);
}

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

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

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

.page-faq .qa__a li {
  margin: 6px 0;
  padding-left: 2px;
}

.page-faq .qa__a li::marker {
  color: var(--ds-orange);
  font-family: var(--ds-mono);
}

.page-faq .qa__a a {
  color: var(--ds-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 联系支持 ---------- */
.page-faq .faq-support {
  padding: 40px 0 14px;
}

.page-faq .faq-support__panel {
  display: grid;
  gap: 24px;
  padding: 26px 20px;
  border-radius: 20px;
  background: linear-gradient(150deg, var(--ds-blue) 0%, var(--ds-navy) 78%);
  color: var(--ds-paper);
}

.page-faq .faq-support__title {
  margin: 12px 0 0;
  font-family: var(--ds-serif);
  font-size: clamp(22px, 4.6vw, 30px);
  line-height: 1.3;
  color: var(--ds-paper);
}

.page-faq .faq-support__text {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(251, 252, 254, .8);
}

.page-faq .faq-support__list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
  font-size: 14.5px;
}

.page-faq .faq-support__list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding-bottom: 8px;
  border-bottom: 1px dashed rgba(251, 252, 254, .22);
}

.page-faq .faq-support__label {
  min-width: 68px;
  font-family: var(--ds-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--ds-orange-soft);
}

.page-faq .faq-support__list a {
  color: var(--ds-paper);
  text-decoration: none;
  border-bottom: 1px solid rgba(251, 252, 254, .4);
  word-break: break-all;
}

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

.page-faq .faq-support__cards {
  display: grid;
  gap: 12px;
  min-width: 0;
}

.page-faq .faq-support__card {
  display: grid;
  gap: 6px;
  padding: 16px 16px 18px;
  border: 1px solid rgba(251, 252, 254, .2);
  border-radius: 14px;
  background: rgba(251, 252, 254, .07);
  color: rgba(251, 252, 254, .82);
  font-size: 14px;
  line-height: 1.7;
  text-decoration: none;
  transition: background .2s var(--ds-ease), border-color .2s var(--ds-ease), transform .2s var(--ds-ease);
}

.page-faq a.faq-support__card:hover,
.page-faq a.faq-support__card:focus-visible {
  background: rgba(251, 252, 254, .13);
  border-color: var(--ds-orange);
  transform: translateY(-2px);
}

.page-faq .faq-support__card strong {
  font-size: 16px;
  color: var(--ds-paper);
}

.page-faq .faq-support__card-num {
  font-family: var(--ds-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--ds-orange);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-hero__panel {
    padding: 30px 28px 34px;
  }

  .page-faq .faq-steps__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }

  .page-faq .faq-support__panel {
    padding: 34px 30px;
  }

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

  .page-faq .faq-support__cards > :first-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 26px 0 8px;
  }

  .page-faq .faq-hero__panel {
    padding: 38px 40px 42px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: 1.08fr .92fr;
    gap: 44px;
    align-items: center;
  }

  .page-faq .faq-hero__figure img {
    aspect-ratio: 12 / 7;
  }

  .page-faq .faq-hot-section {
    padding: 56px 0 10px;
  }

  .page-faq .faq-hot {
    gap: 12px;
  }

  .page-faq .faq-hot__item a {
    padding: 17px 22px;
  }

  .page-faq .faq-steps {
    margin-top: 56px;
    padding: 54px 0 60px;
  }

  .page-faq .faq-steps__head {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: 28px;
  }

  .page-faq .faq-steps__list {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 16px;
  }

  .page-faq .faq-docs {
    padding: 60px 0 16px;
  }

  .page-faq .faq-support {
    padding: 52px 0 20px;
  }

  .page-faq .faq-support__panel {
    grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr);
    gap: 42px;
    align-items: center;
    padding: 42px 40px;
  }

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

@media (min-width: 1000px) {
  .page-faq .faq-docs__grid {
    grid-template-columns: 292px minmax(0, 1fr);
    gap: 52px;
  }

  .page-faq .faq-side__sticky {
    position: sticky;
    top: 92px;
    gap: 18px;
  }

  .page-faq .faq-side__nav {
    flex-direction: column;
    flex-wrap: nowrap;
  }

  .page-faq .faq-side__link {
    justify-content: flex-start;
    border-radius: 0 10px 10px 0;
    border-left: 2px solid var(--ds-mist);
    background: transparent;
    padding: 10px 12px;
  }

  .page-faq .faq-side__link:hover,
  .page-faq .faq-side__link:focus-visible {
    border-left-color: var(--ds-orange);
    background: var(--faq-soft);
  }

  .page-faq .faq-side__count {
    margin-left: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-flow__pulse {
    animation: none;
  }

  .page-faq .faq-hot__item a,
  .page-faq .faq-support__card,
  .page-faq .qa__state::before,
  .page-faq .qa__state::after {
    transition: none;
  }

  .page-faq .faq-hot__item a:hover,
  .page-faq .faq-hot__item a:focus-visible,
  .page-faq a.faq-support__card:hover,
  .page-faq a.faq-support__card:focus-visible {
    transform: none;
  }
}