.page-faq {
  padding-top: 0;
  --faq-col: 268px;
  --faq-step-gap: clamp(18px, 3vw, 28px);
}

/* ===== 首屏 ===== */
.page-faq .faq-hero {
  padding: calc(var(--header-h) + clamp(30px, 6vw, 70px)) 0 clamp(38px, 6vw, 78px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 88% at 86% 0%, rgba(200, 255, 77, .12), transparent 58%),
    radial-gradient(90% 70% at 8% 100%, rgba(255, 106, 43, .10), transparent 62%),
    linear-gradient(180deg, var(--ink) 0%, var(--moss) 100%);
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: clamp(26px, 5vw, 54px);
  margin-top: clamp(26px, 5vw, 52px);
}

.page-faq .faq-hero-copy .lede {
  margin-top: 18px;
  max-width: 32em;
  color: var(--silver);
  font-family: var(--font-serif);
  font-size: clamp(1rem, 1.6vw, 1.1875rem);
  line-height: 1.8;
}

.page-faq .faq-hero-side {
  border-top: 1px solid var(--line-strong);
  padding-top: 18px;
}

.page-faq .faq-side-title {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .2em;
  color: var(--lime);
  text-transform: uppercase;
}

.page-faq .faq-quick {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-quick li {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-soft);
  font-size: .9375rem;
  line-height: 1.6;
  color: var(--silver);
}

.page-faq .faq-quick li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-quick-num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .06em;
  color: var(--lime);
}

@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, .85fr);
    align-items: end;
  }
}

/* ===== 分类问答 ===== */
.page-faq .faq-main {
  background: linear-gradient(180deg, var(--moss) 0%, var(--ink) 100%);
}

.page-faq .faq-tabs {
  margin-top: clamp(24px, 4vw, 42px);
}

.page-faq .faq-tablist {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--line);
  scrollbar-width: thin;
}

.page-faq .faq-tab {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  background: transparent;
  border: 0;
  border-bottom: 2px solid transparent;
  color: var(--silver);
  font: inherit;
  font-size: .9375rem;
  white-space: nowrap;
  cursor: pointer;
  transition: color .22s var(--ease), border-color .22s var(--ease), background-color .22s var(--ease);
}

.page-faq .faq-tab:hover {
  color: var(--bone);
}

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

.page-faq .faq-tab[aria-selected="true"] {
  color: var(--bone);
  border-bottom-color: var(--lime);
  background: linear-gradient(180deg, rgba(200, 255, 77, .09), transparent 90%);
}

.page-faq .faq-tab-num {
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .06em;
  color: var(--clay);
}

.page-faq .faq-tab[aria-selected="true"] .faq-tab-num {
  color: var(--lime);
}

.page-faq .faq-tab-meta {
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .08em;
  color: var(--stone);
}

.page-faq .faq-panel {
  padding-top: clamp(20px, 3vw, 30px);
}

.page-faq .faq-panel[hidden] {
  display: none;
}

.page-faq .faq-panel:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 6px;
}

@media (min-width: 900px) {
  .page-faq .faq-tabs {
    display: grid;
    grid-template-columns: var(--faq-col) minmax(0, 1fr);
    gap: clamp(30px, 4vw, 58px);
    align-items: start;
  }

  .page-faq .faq-tablist {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
    border-bottom: 0;
    border-left: 1px solid var(--line);
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-faq .faq-tab {
    width: 100%;
    justify-content: flex-start;
    margin-left: -1px;
    padding: 14px 16px;
    white-space: normal;
    text-align: left;
    border-bottom: 0;
    border-left: 2px solid transparent;
  }

  .page-faq .faq-tab[aria-selected="true"] {
    border-bottom-color: transparent;
    border-left-color: var(--lime);
    background: linear-gradient(90deg, rgba(200, 255, 77, .10), transparent 72%);
  }

  .page-faq .faq-panel {
    grid-column: 2;
    grid-row: 1;
    padding-top: 0;
  }

  .page-faq .faq-tab-list,
  .page-faq .faq-tablist {
    grid-column: 1;
    grid-row: 1;
  }
}

/* ===== 单条问答 ===== */
.page-faq .faq-item {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-item:first-of-type {
  border-top: 1px solid var(--line);
}

.page-faq .faq-q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 14px;
  align-items: start;
  padding: 18px 0;
  list-style: none;
  cursor: pointer;
  color: var(--bone);
  font-size: 1rem;
  line-height: 1.55;
  font-weight: 600;
  transition: color .2s var(--ease);
}

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

.page-faq .faq-q:hover {
  color: var(--lime);
}

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

.page-faq .faq-q::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 1.0625rem;
  line-height: 1;
  color: var(--lime);
}

.page-faq .faq-item[open] .faq-q::after {
  content: "–";
  color: var(--lava);
}

.page-faq .faq-q-num {
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .06em;
  color: var(--stone);
  padding-top: 4px;
}

.page-faq .faq-item[open] .faq-q-num {
  color: var(--lime);
}

.page-faq .faq-a {
  padding: 0 30px 20px 38px;
  max-width: 34em;
  color: var(--silver);
  font-size: .9375rem;
  line-height: 1.75;
}

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

.page-faq .faq-a a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 255, 77, .42);
}

.page-faq .faq-a a:hover {
  border-bottom-color: var(--lime);
}

.page-faq .faq-hl {
  font-family: var(--font-mono);
  color: var(--lime);
  letter-spacing: .01em;
}

.page-faq .faq-figure {
  margin: clamp(24px, 4vw, 36px) 0 0;
}

.page-faq .faq-figure .media-frame {
  border: 1px solid var(--line);
}

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

.page-faq .faq-figure figcaption {
  margin-top: 12px;
  max-width: 46em;
  color: var(--silver);
  font-size: .8125rem;
  line-height: 1.7;
}

/* ===== 首次访问三步 ===== */
.page-faq .faq-start {
  border-top: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(29, 74, 60, .34) 0%, rgba(6, 24, 19, 0) 100%),
    var(--ink);
}

.page-faq .faq-steps {
  display: grid;
  gap: var(--faq-step-gap);
  margin-top: clamp(24px, 4vw, 40px);
}

.page-faq .faq-step {
  position: relative;
  padding: 24px 20px 26px;
  border: 1px solid var(--line);
  background: rgba(13, 42, 35, .78);
}

.page-faq .faq-step-num {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: .8125rem;
  letter-spacing: .16em;
  color: var(--lime);
}

.page-faq .faq-step h3 {
  margin: 0 0 10px;
  font-size: 1.125rem;
}

.page-faq .faq-step p:last-child {
  margin: 0;
  color: var(--silver);
  font-size: .9375rem;
  line-height: 1.75;
}

.page-faq .faq-start-figure {
  margin-top: clamp(28px, 4vw, 44px);
}

.page-faq .faq-start-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
}

@media (min-width: 760px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 46px;
    right: calc(-1 * var(--faq-step-gap));
    width: var(--faq-step-gap);
    height: 1px;
    background: var(--lime);
    opacity: .55;
  }
}

/* ===== 兜底咨询 ===== */
.page-faq .faq-help {
  border-top: 1px solid var(--line);
  background: var(--moss);
}

.page-faq .faq-help-inner {
  display: grid;
  gap: 20px;
}

.page-faq .faq-help-text {
  margin: 14px 0 0;
  max-width: 40em;
  color: var(--silver);
  font-size: .9375rem;
  line-height: 1.75;
}

@media (min-width: 820px) {
  .page-faq .faq-help-inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
  }

  .page-faq .faq-help-inner .btn {
    align-self: end;
  }
}

/* ===== 窄屏收敛 ===== */
@media (max-width: 640px) {
  .page-faq .faq-a {
    padding: 0 0 18px 30px;
  }

  .page-faq .faq-figure figcaption {
    font-size: .75rem;
  }

  .page-faq .faq-start-cta .btn {
    flex: 1 1 auto;
    text-align: center;
  }
}

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