.page-faq {
  color: var(--fog);
  background:
    radial-gradient(900px 420px at 78% -8%, rgba(43, 240, 194, 0.08), transparent 70%),
    radial-gradient(700px 380px at -4% 44%, rgba(143, 124, 255, 0.06), transparent 72%);
  background-repeat: no-repeat;
  padding-bottom: 64px;
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  padding: 18px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.page-faq .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--mute);
}

.page-faq .breadcrumb-item {
  display: flex;
  align-items: center;
  gap: 12px;
}

.page-faq .breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  color: var(--dim);
}

.page-faq .breadcrumb-link {
  color: inherit;
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

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

.page-faq .breadcrumb-current {
  color: var(--fog);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: 32px 0 4px;
}

.page-faq .faq-hero-copy {
  max-width: 820px;
}

.page-faq .faq-hero .eyebrow {
  margin: 0;
}

.page-faq h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(29px, 7vw, 60px);
  font-weight: 800;
  line-height: 1.07;
  letter-spacing: -0.02em;
  color: var(--fog);
}

.page-faq .faq-lede {
  margin: 18px 0 0;
  max-width: 66ch;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--mute);
}

@media (min-width: 720px) {
  .page-faq .faq-lede {
    font-size: 17px;
    margin-top: 22px;
  }
}

/* ---------- 首屏三步进度 ---------- */
.page-faq .faq-steps-wrap {
  margin-top: 34px;
}

.page-faq .faq-ruler {
  display: block;
  width: 100%;
  height: 12px;
  color: var(--line);
  margin-bottom: 6px;
}

.page-faq .faq-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-step-link {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 12px 10px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(43, 240, 194, 0.07), rgba(43, 240, 194, 0));
  color: var(--fog);
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-step-link:hover,
.page-faq .faq-step-link:focus-visible {
  border-color: var(--neon-32);
  background: var(--neon-08);
}

.page-faq .faq-step-num {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--neon);
}

.page-faq .faq-step-name {
  font-family: var(--font-display);
  font-size: 12.5px;
  font-weight: 600;
  line-height: 1.3;
  word-break: keep-all;
}

@media (min-width: 720px) {
  .page-faq .faq-steps {
    gap: 16px;
  }

  .page-faq .faq-step-link {
    padding: 18px 20px;
    gap: 8px;
  }

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

/* ---------- 主体两栏 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 30px;
  padding-top: 44px;
}

.page-faq .faq-index-inner {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-faq .faq-index-title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--dim);
}

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

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

.page-faq .faq-index-link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 14px;
  border: 1px solid var(--line);
  color: var(--mute);
  text-decoration: none;
  white-space: nowrap;
  font-size: 13px;
  line-height: 1.4;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-index-link:hover,
.page-faq .faq-index-link:focus-visible {
  color: var(--neon);
  border-color: var(--neon-32);
  background: var(--neon-08);
}

.page-faq .faq-index-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--dim);
  transition: color var(--dur) var(--ease);
}

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

@media (min-width: 900px) {
  .page-faq .faq-layout {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 56px;
    padding-top: 56px;
  }

  .page-faq .faq-index-inner {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

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

  .page-faq .faq-index-link {
    border: 0;
    border-left: 1px solid var(--line);
    padding: 12px 0 12px 16px;
    white-space: normal;
  }

  .page-faq .faq-index-link:hover,
  .page-faq .faq-index-link:focus-visible {
    border-left-color: var(--neon);
  }
}

/* ---------- 章节 ---------- */
.page-faq .faq-section {
  padding: 34px 0 10px;
  border-top: 1px solid var(--line);
  scroll-margin-top: calc(var(--header-h) + 24px);
}

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

.page-faq .faq-section-head {
  max-width: 720px;
}

.page-faq .faq-section-head .eyebrow {
  margin: 0;
}

.page-faq h2 {
  margin: 12px 0 14px;
  font-family: var(--font-display);
  font-size: clamp(22px, 4.6vw, 38px);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--fog);
}

.page-faq .faq-section-lede {
  margin: 0;
  max-width: 64ch;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--mute);
}

/* ---------- 三步卡片 ---------- */
.page-faq .faq-steps-row {
  display: grid;
  gap: 24px;
  margin-top: 26px;
}

.page-faq .faq-step-list {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-step-card {
  display: flex;
  flex-direction: column;
  gap: 7px;
  padding: 20px;
  background: var(--panel);
}

.page-faq .faq-step-badge {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--track);
}

.page-faq .faq-step-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--fog);
}

.page-faq .faq-step-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mute);
}

@media (min-width: 900px) {
  .page-faq .faq-steps-row {
    grid-template-columns: minmax(0, 1fr) 232px;
    gap: 28px;
    align-items: start;
  }
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 0;
}

.page-faq .faq-figure .figure-media {
  overflow: hidden;
  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 .figure-caption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--dim);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  margin-top: 28px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 17px 0;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--fog);
  transition: color var(--dur) var(--ease);
}

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

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

.page-faq .faq-q-num {
  flex: none;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--dim);
  transition: color var(--dur) var(--ease);
}

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

.page-faq .faq-q-text {
  flex: 1;
  min-width: 0;
}

.page-faq .faq-q::after {
  flex: none;
  content: "+";
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1.35;
  color: var(--neon);
}

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

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

@media (min-width: 720px) {
  .page-faq .faq-q {
    font-size: 17px;
    padding: 19px 0;
  }
}

.page-faq .faq-a {
  padding: 0 0 22px 34px;
  animation: faq-answer-in 240ms var(--ease);
}

@keyframes faq-answer-in {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.page-faq .faq-a p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--mute);
}

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

.page-faq .faq-a strong {
  color: var(--fog);
  font-weight: 600;
}

.page-faq .faq-a a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid var(--neon-32);
  transition: border-color var(--dur) var(--ease);
}

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

.page-faq .faq-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

/* ---------- 骨架屏示意 ---------- */
.page-faq .faq-loading-demo {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 14px;
  padding: 14px 16px;
  border: 1px dashed var(--line);
  background: rgba(11, 42, 35, 0.55);
}

.page-faq .faq-loading-bar {
  display: flex;
  gap: 8px;
}

.page-faq .faq-skeleton {
  display: block;
  height: 12px;
  width: 42%;
}

.page-faq .faq-skeleton--short {
  width: 26%;
}

.page-faq .faq-loading-note {
  margin: 0;
  font-size: 12px;
  line-height: 1.7;
  color: var(--dim);
}

/* ---------- 复制按钮行 ---------- */
.page-faq .faq-copy-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 14px;
}

.page-faq .copy-btn-hint {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--dim);
}

/* ---------- 移动端底部固定条 ---------- */
.page-faq .faq-dock {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom, 0px));
  background: rgba(3, 16, 12, 0.94);
  border-top: 1px solid var(--line);
  backdrop-filter: blur(8px);
}

.page-faq .faq-dock-text {
  font-size: 12.5px;
  line-height: 1.4;
  color: var(--mute);
}

.page-faq .faq-dock-link {
  flex: none;
  padding: 9px 16px;
  background: var(--neon);
  color: var(--ink-deep);
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
}

@media (max-width: 899px) {
  .page-faq {
    padding-bottom: 96px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-dock {
    display: none;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-a {
    animation: none;
  }

  .page-faq .faq-step-link,
  .page-faq .faq-index-link,
  .page-faq .faq-q,
  .page-faq .faq-q-num,
  .page-faq .breadcrumb-link {
    transition: none;
  }
}