.page-faq {
  display: block;
  background: var(--void);
  color: var(--cream);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* ---------- 面包屑 ---------- */
.page-faq .crumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 2px;
  padding: 18px 0 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--muted);
}

.page-faq .crumbs a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-faq .crumbs a:hover,
.page-faq .crumbs a:focus-visible {
  border-bottom-color: var(--cyan);
}

.page-faq .crumbs__sep {
  margin: 0 8px;
  color: var(--line-strong);
}

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

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(26px, 4.5vw, 52px) 0 clamp(34px, 5vw, 62px);
  border-bottom: 2px solid var(--line-strong);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -140px;
  width: 420px;
  height: 420px;
  background: radial-gradient(closest-side, rgba(23, 224, 200, .16), rgba(23, 224, 200, 0) 72%);
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 4vw, 44px);
  align-items: start;
}

.page-faq .faq-hero__kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-hero__title {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-size: clamp(34px, 6.4vw, 56px);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -.012em;
  color: var(--cream);
}

.page-faq .faq-hero__lead {
  margin: 0 0 22px;
  max-width: 60ch;
  font-size: clamp(16px, 1.9vw, 18px);
  line-height: 1.78;
  color: var(--cream);
  opacity: .9;
}

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

/* 首屏速览栏 */
.page-faq .faq-hero__aside {
  padding: 18px 18px 6px;
  background: rgba(7, 11, 30, .62);
  border: 2px solid var(--line-strong);
  box-shadow: var(--shadow-sm);
}

.page-faq .faq-hero__aside-label {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-quick {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-quick__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-quick__row:first-child {
  border-top: 0;
}

.page-faq .faq-quick__k {
  font-size: 14px;
  line-height: 1.5;
  color: var(--muted);
}

.page-faq .faq-quick__v {
  font-size: 16px;
  letter-spacing: .04em;
  color: var(--yellow);
  white-space: nowrap;
}

/* ---------- 诊断索引 ---------- */
.page-faq .faq-diag {
  padding: clamp(34px, 5vw, 62px) 0 clamp(36px, 5vw, 64px);
}

.page-faq .faq-diag__figure {
  margin: 0 0 clamp(22px, 3vw, 34px);
}

.page-faq .faq-diag__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 2px solid var(--line-strong);
  box-shadow: var(--shadow);
}

.page-faq .faq-diag__figure .figure__cap {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--muted);
}

.page-faq .faq-diag__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-faq .faq-scene {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 18px 20px;
  background: var(--panel);
  border: 2px solid var(--line-strong);
  box-shadow: var(--shadow-sm);
  color: var(--cream);
  text-decoration: none;
  transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease;
}

.page-faq .faq-scene:hover,
.page-faq .faq-scene:focus-visible {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
  border-color: var(--cyan);
  outline: none;
}

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

.page-faq .faq-scene__num {
  font-size: 12px;
  letter-spacing: .22em;
  color: var(--orange);
}

.page-faq .faq-scene__title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: .01em;
}

.page-faq .faq-scene__cue {
  font-size: 14px;
  line-height: 1.65;
  color: var(--muted);
}

.page-faq .faq-scene__go {
  margin-top: auto;
  padding-top: 6px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--cyan);
}

/* ---------- 问答主体 ---------- */
.page-faq .faq-answers {
  padding: clamp(34px, 5vw, 62px) 0 clamp(44px, 6vw, 80px);
  border-top: 2px solid var(--line);
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 40px);
  align-items: start;
}

/* 粘性索引 */
.page-faq .faq-index__label {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  white-space: nowrap;
  font-size: 14px;
  color: var(--cream);
  text-decoration: none;
  background: var(--panel);
  border: 2px solid var(--line-strong);
  transition: border-color .16s ease, color .16s ease, background-color .16s ease;
}

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

.page-faq .faq-index__no {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--orange);
}

/* 问答分组 */
.page-faq .faq-group {
  padding: 22px clamp(16px, 2.6vw, 28px) 24px;
  background: var(--panel);
  border: 2px solid var(--line-strong);
  box-shadow: var(--shadow-sm);
  scroll-margin-top: 96px;
}

.page-faq .faq-group + .faq-group {
  margin-top: 18px;
}

.page-faq .faq-group:target {
  border-color: var(--cyan);
  box-shadow: var(--shadow);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--line);
}

.page-faq .faq-group__num {
  font-size: 13px;
  letter-spacing: .2em;
  color: var(--orange);
}

.page-faq .faq-group__title {
  flex: 1 1 220px;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(19px, 2.5vw, 25px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: .004em;
  color: var(--cream);
}

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

.page-faq .qa:last-of-type {
  border-bottom: 0;
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 4px 16px 0;
  cursor: pointer;
  list-style: none;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--cream);
  transition: color .14s ease;
}

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

.page-faq .qa__q::before {
  content: "+";
  flex: 0 0 auto;
  width: 20px;
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 400;
  line-height: 1.4;
  text-align: center;
  color: var(--cyan);
}

.page-faq .qa[open] .qa__q::before {
  content: "\2013";
}

.page-faq .qa__q:hover,
.page-faq .qa__q:focus-visible {
  color: var(--cyan);
}

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

.page-faq .qa__a {
  padding: 0 0 20px 32px;
  color: var(--cream);
  opacity: .9;
}

.page-faq .qa__a p {
  margin: 0 0 10px;
  font-size: 16px;
  line-height: 1.78;
}

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

/* 等宽旁注 */
.page-faq .note-strip {
  margin-top: 12px;
  padding-left: 10px;
  border-left: 2px solid var(--cyan);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.7;
  letter-spacing: .02em;
  color: var(--muted);
  opacity: 1;
}

.page-faq .note-strip a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(23, 224, 200, .45);
}

.page-faq .note-strip a:hover,
.page-faq .note-strip a:focus-visible {
  border-bottom-color: var(--cyan);
}

/* 步骤序号 */
.page-faq .steps {
  counter-reset: faq-step;
  margin: 8px 0 4px;
  padding: 0;
  list-style: none;
}

.page-faq .steps li {
  position: relative;
  padding: 0 0 14px 46px;
  font-size: 16px;
  line-height: 1.75;
}

.page-faq .steps li:last-child {
  padding-bottom: 2px;
}

.page-faq .steps li::before {
  counter-increment: faq-step;
  content: counter(faq-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 3px;
  padding: 1px 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--orange);
  border: 1px solid var(--line-strong);
}

/* 图文区块 */
.page-faq .faq-inline-figure {
  margin: 20px 0 0;
}

.page-faq .faq-inline-img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 2px solid var(--line-strong);
  box-shadow: var(--shadow-sm);
}

.page-faq .faq-inline-figure .figure__cap {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--muted);
}

/* ---------- 反馈分组（奶油纸画板） ---------- */
.page-faq .faq-group--paper {
  background: var(--cream);
  color: var(--ink);
  border-color: var(--ink);
  box-shadow: 6px 6px 0 rgba(193, 39, 45, .38);
}

.page-faq .faq-group--paper .faq-group__head {
  border-bottom-color: rgba(20, 16, 12, .22);
}

.page-faq .faq-group--paper .faq-group__num {
  color: var(--red);
}

.page-faq .faq-group--paper .faq-group__title {
  color: var(--ink);
}

.page-faq .faq-support__lead {
  margin: 18px 0 10px;
  font-size: 16px;
  line-height: 1.78;
  color: var(--muted-paper);
}

.page-faq .steps--paper li {
  color: var(--ink);
}

.page-faq .steps--paper li::before {
  color: var(--red);
  border-color: rgba(20, 16, 12, .32);
}

.page-faq .faq-support__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 16px 0 0;
}

.page-faq .note-strip--paper {
  border-left-color: var(--red);
  color: var(--muted-paper);
  margin-top: 16px;
  padding-top: 2px;
}

.page-faq .note-strip--paper a {
  color: var(--red);
  border-bottom-color: rgba(193, 39, 45, .4);
}

.page-faq .note-strip--paper a:hover,
.page-faq .note-strip--paper a:focus-visible {
  border-bottom-color: var(--red);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-diag__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(250px, .85fr);
  }

  .page-faq .qa__a {
    padding-left: 34px;
    padding-right: clamp(0px, 4vw, 56px);
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: 230px minmax(0, 1fr);
    gap: clamp(24px, 3.4vw, 52px);
  }

  .page-faq .faq-index {
    position: sticky;
    top: 92px;
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    gap: 6px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-index__link {
    justify-content: flex-start;
    white-space: normal;
    line-height: 1.4;
  }

  .page-faq .faq-diag__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-scene {
    padding: 22px 20px 24px;
  }
}

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

  .page-faq .faq-scene:hover,
  .page-faq .faq-scene:focus-visible {
    transform: none;
  }
}