.page-faq {
  --faq-rule: rgba(60, 71, 68, .26);
  --faq-index-w: 244px;
  --faq-gap: clamp(1.75rem, 4vw, 3.5rem);
  background: var(--moon);
  color: var(--ink);
}

.page-faq .numeric {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: .04em;
}

/* ---------- 状态带 ---------- */

.page-faq .faq-status {
  background: var(--ink);
  border-bottom: 2px solid var(--rock-mid);
}

.page-faq .faq-status__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .45rem 1.5rem;
  max-width: var(--shell);
  margin: 0 auto;
  padding: .8rem clamp(1.25rem, 5vw, 3rem);
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .1em;
}

.page-faq .faq-status__live {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  color: var(--cyan);
}

.page-faq .faq-status__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 3px rgba(127, 227, 198, .16);
  animation: faq-pulse 2.4s ease-in-out infinite;
}

@keyframes faq-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .3; }
}

.page-faq .faq-status__item {
  color: rgba(243, 238, 228, .58);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  max-width: var(--shell);
  margin: 0 auto;
  padding: clamp(2.5rem, 7vw, 5rem) clamp(1.25rem, 5vw, 3rem) clamp(2rem, 5vw, 3.25rem);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(60, 71, 68, .085) 1px, transparent 1px),
    linear-gradient(90deg, rgba(60, 71, 68, .085) 1px, transparent 1px);
  background-size: 34px 34px;
  -webkit-mask-image: radial-gradient(120% 90% at 82% 8%, rgba(0, 0, 0, .95), transparent 72%);
  mask-image: radial-gradient(120% 90% at 82% 8%, rgba(0, 0, 0, .95), transparent 72%);
  pointer-events: none;
}

.page-faq .faq-hero > * {
  position: relative;
  z-index: 1;
}

.page-faq .breadcrumb {
  font-size: .78rem;
  letter-spacing: .06em;
  color: var(--stone);
}

.page-faq .breadcrumb a {
  color: var(--moss);
  text-decoration: none;
}

.page-faq .breadcrumb a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .breadcrumb__sep {
  margin: 0 .5rem;
  color: var(--stone);
}

.page-faq .faq-hero .index-label {
  margin: 2rem 0 0;
  color: var(--clay);
}

.page-faq .faq-hero h1 {
  margin: .8rem 0 1.5rem;
  max-width: 20ch;
  font-size: clamp(2.05rem, 5.6vw, 4rem);
  font-weight: 400;
  line-height: 1.06;
  letter-spacing: -.02em;
}

.page-faq .faq-hero__lead {
  max-width: 36em;
  margin: 0;
  font-size: 1.0625rem;
  line-height: 1.85;
  color: var(--rock-mid);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: .55rem 1.75rem;
  margin: 2rem 0 0;
  padding: 1rem 0 0;
  border-top: 2px solid var(--faq-rule);
  list-style: none;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .09em;
  color: var(--moss);
}

/* ---------- 索引 + 问答区 ---------- */

.page-faq .faq-wrap {
  display: grid;
  grid-template-columns: 1fr;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 5vw, 3rem) clamp(2.5rem, 6vw, 4.5rem);
}

.page-faq .faq-index {
  padding: 1.5rem 0 .75rem;
  border-bottom: 2px solid var(--faq-rule);
}

.page-faq .faq-index .index-label {
  margin: 0 0 .85rem;
  color: var(--stone);
}

.page-faq .faq-index__list {
  display: flex;
  gap: .5rem;
  margin: 0;
  padding: 0 0 .3rem;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-faq .faq-index__item {
  flex: 0 0 auto;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: center;
  gap: .55rem;
  padding: .6rem .8rem;
  border: 2px solid var(--rock-mid);
  background: var(--paper);
  color: var(--ink);
  text-decoration: none;
  font-size: .82rem;
  line-height: 1.2;
  white-space: nowrap;
  transition: background var(--ease), color var(--ease), border-color var(--ease);
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .08em;
  color: var(--moss);
  transition: color var(--ease);
}

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

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

/* ---------- 分组 ---------- */

.page-faq .faq-panels {
  padding-right: clamp(0px, 1.6vw, 14px);
}

.page-faq .faq-group {
  padding: clamp(2.25rem, 5vw, 3.25rem) 0 0;
  border-top: 2px solid var(--faq-rule);
  scroll-margin-top: 1.5rem;
}

.page-faq .faq-group:first-child {
  border-top: 0;
  padding-top: clamp(1.75rem, 4vw, 2.5rem);
}

.page-faq .faq-group__title {
  display: flex;
  align-items: baseline;
  gap: .8rem;
  margin: 0 0 .6rem;
  font-size: clamp(1.3rem, 2.6vw, 1.7rem);
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: -.01em;
}

.page-faq .faq-group__num {
  flex: 0 0 auto;
  padding: .16rem .42rem;
  border: 2px solid var(--clay);
  color: var(--clay);
  font-family: var(--font-mono);
  font-size: .78rem;
  font-weight: 500;
  letter-spacing: .1em;
}

.page-faq .faq-group__note {
  max-width: 34em;
  margin: 0 0 1.6rem;
  font-size: .88rem;
  line-height: 1.7;
  color: var(--rock-mid);
}

/* ---------- 折叠问答 ---------- */

.page-faq .faq-item {
  margin: 0 0 1rem;
  border: 2px solid var(--rock-mid);
  background: var(--paper);
  box-shadow: var(--shadow-hard);
  transition: border-color var(--ease), box-shadow var(--ease);
}

.page-faq .faq-item[open] {
  border-color: var(--amber);
  box-shadow: var(--shadow-hard-hover);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: .85rem;
  padding: 1.05rem 1.15rem;
  cursor: pointer;
  list-style: none;
  font-size: 1.0625rem;
  font-weight: 500;
  line-height: 1.55;
}

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

.page-faq .faq-item__marker {
  position: relative;
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
  margin-top: .42rem;
  border: 2px solid var(--moss);
  transition: border-color var(--ease);
}

.page-faq .faq-item__marker::before,
.page-faq .faq-item__marker::after {
  content: "";
  position: absolute;
  background: var(--moss);
  transition: background var(--ease), opacity var(--ease);
}

.page-faq .faq-item__marker::before {
  left: 50%;
  top: 2px;
  bottom: 2px;
  width: 2px;
  transform: translateX(-50%);
}

.page-faq .faq-item__marker::after {
  top: 50%;
  left: 2px;
  right: 2px;
  height: 2px;
  transform: translateY(-50%);
}

.page-faq .faq-item[open] .faq-item__marker {
  border-color: var(--amber);
}

.page-faq .faq-item[open] .faq-item__marker::before {
  opacity: 0;
}

.page-faq .faq-item[open] .faq-item__marker::after {
  background: var(--amber);
}

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

.page-faq .faq-item__a {
  padding: 0 1.15rem 1.25rem;
  border-top: 1px solid var(--faq-rule);
}

.page-faq .faq-item__a p {
  max-width: 38em;
  margin: 1rem 0 0;
  font-size: .94rem;
  line-height: 1.85;
  color: var(--rock-mid);
}

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

.page-faq .faq-item__a a:hover {
  color: var(--clay);
}

/* ---------- 配图 ---------- */

.page-faq .faq-figure {
  margin: 1.5rem 0 1rem;
  border: 2px solid var(--rock-mid);
  background: var(--paper);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-figure figcaption {
  padding: .7rem .9rem;
  font-size: .76rem;
  line-height: 1.6;
  letter-spacing: .02em;
  color: var(--rock-mid);
}

/* ---------- 版本对照 ---------- */

.page-faq .faq-matrix {
  border: 2px solid var(--rock-mid);
  background: var(--paper);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-matrix__scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-matrix__table {
  width: 100%;
  min-width: 580px;
  border-collapse: collapse;
  font-size: .86rem;
}

.page-faq .faq-matrix__cap {
  caption-side: top;
  padding: .85rem 1rem;
  border-bottom: 2px solid var(--rock-mid);
  background: var(--ink);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .14em;
  text-align: left;
}

.page-faq .faq-matrix__table thead th {
  padding: .85rem .9rem;
  background: var(--rock);
  color: var(--moon);
  font-size: .78rem;
  font-weight: 500;
  letter-spacing: .06em;
  text-align: center;
  border-bottom: 2px solid var(--rock-mid);
}

.page-faq .faq-matrix__table thead th:first-child {
  text-align: left;
  color: rgba(243, 238, 228, .6);
}

.page-faq .faq-matrix__end {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
}

.page-faq .faq-matrix__pip {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
}

.page-faq .faq-matrix__table tbody th {
  padding: .85rem .9rem;
  text-align: left;
  font-weight: 500;
  color: var(--ink);
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-matrix__table tbody td {
  padding: .85rem .9rem;
  text-align: center;
  color: var(--rock-mid);
  border-bottom: 1px solid var(--faq-rule);
  border-left: 1px solid var(--faq-rule);
}

.page-faq .faq-matrix__table tbody tr:last-child th,
.page-faq .faq-matrix__table tbody tr:last-child td {
  border-bottom: 0;
}

.page-faq .faq-matrix__mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: .04em;
  color: var(--ink);
}

.page-faq .faq-matrix__yes {
  color: var(--moss);
  font-weight: 700;
}

.page-faq .faq-matrix__none {
  color: var(--stone);
  font-family: var(--font-mono);
}

.page-faq .faq-matrix__foot {
  margin: 1.25rem 0 0;
  font-size: .84rem;
  line-height: 1.75;
  color: var(--rock-mid);
  max-width: 38em;
}

/* ---------- 仍未解决 ---------- */

.page-faq .faq-help {
  background-color: var(--ink);
  background-image:
    radial-gradient(rgba(127, 227, 198, .12) 1px, transparent 1px),
    linear-gradient(180deg, rgba(216, 162, 76, .1), transparent 62%);
  background-size: 26px 26px, 100% 100%;
  color: var(--moon);
}

.page-faq .faq-help__inner {
  max-width: var(--shell);
  margin: 0 auto;
  padding: clamp(2.75rem, 6vw, 4.5rem) clamp(1.25rem, 5vw, 3rem);
}

.page-faq .faq-help__label {
  margin: 0;
  color: var(--cyan);
}

.page-faq .faq-help__title {
  margin: .9rem 0 1rem;
  max-width: 22ch;
  font-size: clamp(1.6rem, 3.4vw, 2.4rem);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -.015em;
  color: var(--moon);
}

.page-faq .faq-help__lead {
  max-width: 34em;
  margin: 0;
  font-size: .96rem;
  line-height: 1.8;
  color: rgba(243, 238, 228, .72);
}

.page-faq .faq-checklist {
  display: grid;
  grid-template-columns: 1fr;
  gap: .5rem;
  margin: 1.75rem 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-checklist__item {
  display: flex;
  align-items: flex-start;
  gap: .8rem;
  padding: .75rem .9rem;
  border: 1px solid rgba(243, 238, 228, .18);
  background: rgba(30, 38, 36, .62);
}

.page-faq .faq-checklist__box {
  flex: 0 0 auto;
  width: 12px;
  height: 12px;
  margin-top: .3rem;
  border: 2px solid var(--amber);
}

.page-faq .faq-checklist__body {
  display: flex;
  flex-direction: column;
  gap: .18rem;
  min-width: 0;
}

.page-faq .faq-checklist__label {
  font-size: .94rem;
  color: var(--moon);
}

.page-faq .faq-checklist__hint {
  font-size: .76rem;
  line-height: 1.5;
  letter-spacing: .03em;
  color: rgba(243, 238, 228, .52);
}

.page-faq .faq-help__cta {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  margin-top: 2rem;
  padding: .85rem 1.5rem;
  border: 2px solid var(--amber);
  background: var(--amber);
  color: var(--ink);
  text-decoration: none;
  font-size: .95rem;
  font-weight: 700;
  letter-spacing: .02em;
  box-shadow: 8px 8px 0 rgba(0, 0, 0, .55);
  transition: background var(--ease), box-shadow var(--ease);
}

.page-faq .faq-help__cta:hover {
  background: var(--moon);
  box-shadow: 12px 12px 0 rgba(0, 0, 0, .55);
}

.page-faq .faq-help__note {
  margin: 1.5rem 0 0;
  font-size: .78rem;
  line-height: 1.7;
  letter-spacing: .03em;
  color: rgba(243, 238, 228, .52);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-faq .faq-checklist {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 940px) {
  .page-faq .faq-wrap {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    column-gap: var(--faq-gap);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 4.5rem;
    padding: clamp(2rem, 4vw, 2.5rem) 1.4rem 2rem 0;
    border-bottom: 0;
    border-right: 2px solid var(--faq-rule);
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    gap: .3rem;
    overflow: visible;
    padding: 0;
  }

  .page-faq .faq-index__item {
    flex: 1 1 auto;
  }

  .page-faq .faq-index__link {
    border: 0;
    border-left: 3px solid transparent;
    background: transparent;
    padding: .55rem .7rem;
    white-space: normal;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    border-left-color: var(--amber);
    background: var(--ink);
  }

  .page-faq .faq-group:first-child {
    padding-top: clamp(2rem, 4vw, 2.5rem);
  }

  .page-faq .faq-item__q {
    padding: 1.15rem 1.4rem;
  }

  .page-faq .faq-item__a {
    padding: 0 1.4rem 1.4rem;
  }
}

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

  .page-faq .faq-index__link,
  .page-faq .faq-item,
  .page-faq .faq-item__marker,
  .page-faq .faq-help__cta {
    transition: none;
  }
}