.page-faq {
  --faq-pad: 26px;
  --faq-ink-soft: #4b4139;
  --faq-line-soft: rgba(143, 163, 200, .2);
  position: relative;
  overflow-x: hidden;
  background:
    radial-gradient(900px 520px at 88% -12%, rgba(47, 224, 208, .14), transparent 70%),
    radial-gradient(720px 440px at 4% 6%, rgba(255, 90, 31, .12), transparent 72%),
    var(--ink-blue);
  color: var(--glass-white);
  font-family: var(--font-body);
  padding-bottom: 96px;
}

/* 面包屑 */
.page-faq .faq-crumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: 22px;
  padding-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--haze-blue);
}

.page-faq .faq-crumb a {
  color: var(--haze-blue);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-faq .faq-crumb a:hover,
.page-faq .faq-crumb a:focus-visible {
  color: var(--electric-cyan);
  border-bottom-color: var(--electric-cyan);
  outline: none;
}

.page-faq .faq-crumb__now {
  color: var(--cream);
}

/* 首屏 */
.page-faq .faq-hero {
  padding: 16px 0 44px;
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
  align-items: start;
}

.page-faq .faq-hero__copy .eyebrow {
  color: var(--electric-cyan);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  margin: 0;
}

.page-faq .faq-hero h1 {
  margin: 14px 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(29px, 5.6vw, 52px);
  line-height: 1.08;
  letter-spacing: -.02em;
  color: var(--cream);
}

.page-faq .faq-hero__accent {
  color: var(--neon-orange);
  font-style: normal;
}

.page-faq .faq-hero__lede {
  margin: 0;
  max-width: 56ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: #c6d2e6;
}

.page-faq .faq-hero__quick {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 30px;
  margin: 28px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--faq-line-soft);
  list-style: none;
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--haze-blue);
}

.page-faq .faq-hero__meta li {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.page-faq .faq-hero__meta .mono {
  font-family: var(--font-mono);
  font-size: 19px;
  color: var(--electric-cyan);
  letter-spacing: 0;
}

.page-faq .faq-hero__figure {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  background: var(--stand-blue);
  overflow: hidden;
}

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

.page-faq .faq-hero__cap {
  display: block;
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--haze-blue);
}

/* 分段标签 */
.page-faq .faq-console {
  padding-top: 6px;
}

.page-faq .faq-tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 4px 0 16px;
  border-bottom: 1px solid var(--faq-line-soft);
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-tab {
  scroll-snap-align: start;
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 11px 17px;
  border: 1px solid var(--line);
  background: rgba(18, 35, 79, .74);
  color: var(--glass-white);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: .01em;
  cursor: pointer;
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%);
  transition: background .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
}

.page-faq .faq-tab .mono {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  color: var(--electric-cyan);
}

.page-faq .faq-tab:hover {
  border-color: rgba(47, 224, 208, .5);
}

.page-faq .faq-tab[aria-selected="true"] {
  background: var(--neon-orange);
  border-color: var(--neon-orange);
  color: #2a1004;
}

.page-faq .faq-tab[aria-selected="true"] .mono {
  color: #5c2408;
}

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

/* 面板 */
.page-faq .faq-panel {
  padding: 30px 0 0;
}

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

.page-faq .faq-panel__head {
  margin-bottom: 22px;
  padding-left: 14px;
  border-left: 3px solid var(--neon-orange);
}

.page-faq .faq-panel__head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(19px, 3.2vw, 25px);
  line-height: 1.28;
  letter-spacing: -.01em;
  color: var(--cream);
}

.page-faq .faq-panel__head p {
  margin: 8px 0 0;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.7;
  color: var(--haze-blue);
}

.page-faq .faq-panel__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  align-items: start;
}

/* 目录 */
.page-faq .faq-toc {
  border: 1px solid var(--line);
  background: rgba(18, 35, 79, .58);
  padding: 16px 14px;
  backdrop-filter: blur(6px);
}

.page-faq .faq-toc__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--electric-cyan);
}

.page-faq .faq-toc__list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-toc__list a {
  display: flex;
  gap: 9px;
  padding: 7px 8px;
  border-left: 2px solid transparent;
  color: var(--haze-blue);
  font-size: 13px;
  line-height: 1.45;
  text-decoration: none;
  transition: color .18s var(--ease), border-color .18s var(--ease), background .18s var(--ease);
}

.page-faq .faq-toc__list a .mono {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11px;
  color: rgba(47, 224, 208, .7);
  padding-top: 2px;
}

.page-faq .faq-toc__list a:hover,
.page-faq .faq-toc__list a:focus-visible {
  color: var(--cream);
  border-left-color: var(--electric-cyan);
  background: rgba(47, 224, 208, .08);
  outline: none;
}

/* 问答列表 */
.page-faq .faq-list {
  display: grid;
  gap: 12px;
  min-width: 0;
}

.page-faq .faq-item {
  background: var(--cream);
  color: var(--ink-black);
  border-left: 3px solid rgba(27, 23, 20, .14);
  box-shadow: 0 1px 0 rgba(0, 0, 0, .2);
  transition: border-color .2s var(--ease);
}

.page-faq .faq-item[open] {
  border-left-color: var(--neon-orange);
}

.page-faq .faq-item:target {
  outline: 2px solid var(--electric-cyan);
  outline-offset: 1px;
}

.page-faq .faq-item__q {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 16px 46px 16px 18px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15.5px;
  line-height: 1.45;
  color: var(--ink-black);
}

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

.page-faq .faq-item__q::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 400;
  line-height: 1;
  color: var(--press-red);
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "−";
}

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--press-red);
  outline-offset: -4px;
}

.page-faq .faq-item__no {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 400;
  letter-spacing: .06em;
  color: var(--press-red);
}

.page-faq .faq-item__a {
  padding: 14px 18px 20px;
  border-top: 1px solid rgba(27, 23, 20, .1);
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--faq-ink-soft);
}

.page-faq .faq-item__a > p:first-child {
  margin-top: 0;
}

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

.page-faq .faq-item__a a {
  color: var(--press-red);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-faq .faq-item__a a:hover,
.page-faq .faq-item__a a:focus-visible {
  color: var(--neon-orange);
}

/* 编号步骤 */
.page-faq .faq-steps {
  list-style: none;
  counter-reset: faqstep;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-steps > li {
  counter-increment: faqstep;
  position: relative;
  padding-left: 38px;
  font-size: 14px;
  line-height: 1.72;
}

.page-faq .faq-steps > li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  width: 27px;
  padding: 2px 0;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .02em;
  color: var(--glass-white);
  background: var(--stand-blue);
  border-radius: var(--radius);
}

/* 提示 */
.page-faq .faq-note {
  margin: 16px 0 0;
  padding: 11px 13px;
  background: rgba(200, 50, 30, .08);
  border-left: 2px solid var(--press-red);
  font-size: 13.5px;
  line-height: 1.68;
  color: #5b3226;
}

/* 面板内插图 */
.page-faq .faq-figure {
  margin: 18px 0 0;
  border: 1px solid rgba(27, 23, 20, .18);
  background: var(--stand-blue);
  overflow: hidden;
}

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

.page-faq .faq-figure figcaption {
  padding: 9px 12px;
  border-top: 1px solid rgba(232, 238, 249, .18);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--glass-white);
}

/* 底部行动区 */
.page-faq .faq-cta {
  margin-top: 56px;
}

.page-faq .faq-cta__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  padding: 26px 22px;
  border: 1px solid var(--line);
  background:
    linear-gradient(115deg, rgba(255, 90, 31, .14), transparent 58%),
    rgba(18, 35, 79, .74);
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 0 100%);
  align-items: center;
}

.page-faq .faq-cta__copy .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--energy-yellow);
}

.page-faq .faq-cta__copy h2 {
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(19px, 3.4vw, 26px);
  line-height: 1.26;
  letter-spacing: -.01em;
  color: var(--cream);
}

.page-faq .faq-cta__copy p {
  margin: 0;
  max-width: 56ch;
  font-size: 14px;
  line-height: 1.72;
  color: var(--haze-blue);
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* 中屏以上 */
@media (min-width: 780px) {
  .page-faq {
    padding-bottom: 112px;
  }

  .page-faq .faq-hero {
    padding: 24px 0 56px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .82fr);
    gap: 48px;
  }

  .page-faq .faq-hero__lede {
    font-size: 16px;
  }

  .page-faq .faq-tab {
    padding: 12px 20px;
    font-size: 14.5px;
  }

  .page-faq .faq-item__q {
    font-size: 16px;
  }

  .page-faq .faq-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    padding: 34px 32px;
    gap: 30px;
  }
}

/* 桌面：左侧目录固定，右侧问答 */
@media (min-width: 1000px) {
  .page-faq .faq-panel__grid {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: 40px;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: calc(var(--bar-h) + 22px);
  }

  .page-faq .faq-panel__head {
    padding-left: 18px;
  }
}

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