.page-faq {
  background: var(--ink-800);
  color: var(--paper-dim);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding-block: clamp(20px, 4vw, 42px) clamp(52px, 8vw, 104px);
  background:
    radial-gradient(120% 92% at 90% -12%, rgba(139, 92, 246, 0.24) 0%, transparent 58%),
    radial-gradient(84% 72% at 6% 0%, rgba(34, 211, 238, 0.15) 0%, transparent 62%),
    var(--ink-950);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 44px), 0 100%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events: none;
}

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

.page-faq .faq-hero .breadcrumb {
  margin-bottom: clamp(22px, 3.4vw, 40px);
}

.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
}

.page-faq .faq-hero-copy .eyebrow {
  margin: 0 0 14px;
  color: var(--cyan);
}

.page-faq h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(30px, 5.8vw, 62px);
  line-height: 1.12;
  letter-spacing: -0.012em;
  color: var(--paper);
}

.page-faq .faq-lede {
  max-width: 48ch;
  margin: 0 0 16px;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--paper-dim);
}

.page-faq .faq-lede--tight {
  margin-bottom: 26px;
  color: var(--mist);
}

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

.page-faq .faq-hero-figure {
  margin: 0;
  border-radius: var(--radius-xl);
  border: 1px solid var(--line-strong);
  background: var(--ink-900);
  overflow: hidden;
}

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

.page-faq .faq-hero-figure figcaption {
  padding: 12px 18px;
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.03em;
  color: var(--mist);
  border-top: 1px solid var(--line);
}

/* ---------- 主体面板 ---------- */
.page-faq .faq-board {
  padding-block: clamp(32px, 5vw, 64px) clamp(56px, 8vw, 112px);
  background: var(--ink-800);
}

.page-faq .faq-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 34px);
}

/* ---------- 左侧目录 ---------- */
.page-faq .faq-index {
  position: sticky;
  top: var(--header-h);
  z-index: 6;
  padding-block: 10px;
  background: linear-gradient(180deg, var(--ink-800) 72%, rgba(16, 26, 58, 0) 100%);
}

.page-faq .faq-index-title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mist);
}

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

.page-faq .faq-index-list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-index-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--line-strong);
  border-radius: var(--pill);
  color: var(--paper-dim);
  font-size: 13px;
  white-space: nowrap;
  text-decoration: none;
  transition: color 200ms var(--ease), background 200ms var(--ease), border-color 200ms var(--ease);
}

.page-faq .faq-index-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--cyan);
  transition: color 200ms var(--ease);
}

.page-faq .faq-index-link:hover,
.page-faq .faq-index-link:focus-visible {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink-950);
}

.page-faq .faq-index-link:hover .faq-index-num,
.page-faq .faq-index-link:focus-visible .faq-index-num {
  color: var(--ink-950);
}

/* ---------- 问答组 ---------- */
.page-faq .faq-stream {
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: calc(var(--header-h) + 84px);
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(36px, 5vw, 62px);
  padding-top: clamp(28px, 4vw, 44px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-group-head {
  margin-bottom: 18px;
}

.page-faq .faq-group-num {
  display: inline-block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--cyan);
}

.page-faq .faq-group-head h2 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(22px, 3vw, 34px);
  line-height: 1.26;
  color: var(--paper);
}

.page-faq .faq-group-head p {
  margin: 0;
  max-width: 56ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 折展卡片 ---------- */
.page-faq .faq-item {
  background: var(--paper);
  border: 1px solid rgba(16, 26, 58, 0.09);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow 240ms var(--ease), transform 240ms var(--ease);
}

.page-faq .faq-item + .faq-item {
  margin-top: 10px;
}

.page-faq .faq-item[open] {
  box-shadow: 0 18px 44px -28px rgba(7, 11, 28, 0.9);
}

.page-faq .faq-q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink-800);
  transition: color 200ms var(--ease);
}

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

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

.page-faq .faq-q:hover {
  color: var(--ink-950);
}

.page-faq .faq-num {
  flex: none;
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--clay);
}

.page-faq .faq-q > span:last-child {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-q::after {
  content: "+";
  flex: none;
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--clay);
}

.page-faq .faq-item[open] .faq-q::after {
  content: "−";
  color: var(--ink-950);
}

.page-faq .faq-a {
  margin: 0 18px 18px 18px;
  padding: 2px 0 2px 14px;
  border-left: 2px solid var(--cyan);
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--ink-600);
}

.page-faq .faq-a p {
  margin: 0 0 8px;
}

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

.page-faq .faq-inline-link {
  color: var(--ink-800);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 211, 238, 0.85);
  padding-bottom: 1px;
  transition: color 200ms var(--ease);
}

.page-faq .faq-inline-link:hover,
.page-faq .faq-inline-link:focus-visible {
  color: var(--clay);
}

/* ---------- 人群胶囊 ---------- */
.page-faq .crowd-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.page-faq .crowd-pill {
  padding: 7px 15px;
  border-radius: var(--pill);
  font-size: 13px;
  line-height: 1.4;
  border: 1px solid;
}

.page-faq .crowd-pill:nth-child(odd) {
  color: #B6D8B2;
  border-color: rgba(140, 180, 138, 0.55);
  background: rgba(91, 127, 90, 0.26);
}

.page-faq .crowd-pill:nth-child(even) {
  color: #F0B79F;
  border-color: rgba(224, 150, 120, 0.55);
  background: rgba(196, 106, 74, 0.24);
}

/* ---------- 章内配图 ---------- */
.page-faq .faq-inline-figure {
  margin: 0 0 20px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-strong);
  background: var(--ink-900);
  overflow: hidden;
}

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

.page-faq .faq-inline-figure figcaption {
  padding: 10px 16px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--mist);
  border-top: 1px solid var(--line);
}

/* ---------- 延伸入口 ---------- */
.page-faq .faq-more {
  margin-top: clamp(40px, 6vw, 72px);
  padding: clamp(22px, 3.4vw, 34px);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(135deg, rgba(34, 211, 238, 0.13) 0%, rgba(139, 92, 246, 0.16) 100%),
    var(--ink-900);
}

.page-faq .faq-more h2 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(20px, 2.6vw, 27px);
  line-height: 1.3;
  color: var(--paper);
}

.page-faq .faq-more-lede {
  margin: 0;
  max-width: 52ch;
  font-size: 14px;
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .faq-more-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-more-link {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 6px 14px;
  padding: 13px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--paper);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: border-color 200ms var(--ease), background 200ms var(--ease), transform 200ms var(--ease);
}

.page-faq .faq-more-link:hover,
.page-faq .faq-more-link:focus-visible {
  border-color: var(--cyan);
  background: rgba(34, 211, 238, 0.1);
  transform: translateX(3px);
}

.page-faq .faq-more-note {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 400;
  letter-spacing: 0.06em;
  color: var(--mist);
}

/* ---------- 动效降级 ---------- */
.page-faq [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 300ms var(--ease), transform 300ms var(--ease);
}

.page-faq [data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .page-faq [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

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

/* 无脚本环境下保持内容可读 */
.page-faq .faq-item .faq-a {
  display: block;
}

/* ---------- 平板 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-q {
    padding: 18px 22px;
    font-size: 16px;
  }

  .page-faq .faq-a {
    margin: 0 22px 20px 22px;
    padding-left: 16px;
  }

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

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: end;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-shell {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: clamp(34px, 4vw, 60px);
    align-items: start;
  }

  .page-faq .faq-index {
    top: calc(var(--header-h) + 26px);
    padding-block: 0;
    background: none;
  }

  .page-faq .faq-index-list {
    flex-direction: column;
    gap: 2px;
    padding-bottom: 0;
    overflow: visible;
  }

  .page-faq .faq-index-link {
    display: flex;
    width: 100%;
    padding: 10px 12px;
    border: 0;
    border-left: 2px solid var(--line);
    border-radius: 0;
    white-space: normal;
    font-size: 13.5px;
    transition: color 200ms var(--ease), background 200ms var(--ease), border-color 200ms var(--ease);
  }

  .page-faq .faq-index-link:hover,
  .page-faq .faq-index-link:focus-visible {
    background: rgba(34, 211, 238, 0.1);
    border-left-color: var(--cyan);
    color: var(--cyan);
  }

  .page-faq .faq-index-link:hover .faq-index-num,
  .page-faq .faq-index-link:focus-visible .faq-index-num {
    color: var(--cyan);
  }
}
<<<END>>>