.page-faq {
  --faq-line: rgba(92, 242, 230, 0.18);
  --faq-line-soft: rgba(154, 168, 192, 0.14);
  --faq-index-w: 258px;
  background: var(--void);
  color: var(--ink);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-hero-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
  filter: saturate(0.85) contrast(1.06);
}

.page-faq .faq-hero-veil {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(155deg, rgba(5, 7, 15, 0.92) 0%, rgba(5, 7, 15, 0.68) 46%, rgba(36, 19, 56, 0.72) 100%),
    repeating-linear-gradient(0deg, rgba(92, 242, 230, 0.05) 0 1px, transparent 1px 4px);
}

.page-faq .faq-hero-inner {
  position: relative;
  padding-top: 26px;
  padding-bottom: 40px;
  max-width: 760px;
}

.page-faq .breadcrumb {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  margin-bottom: 26px;
}

.page-faq .faq-hero-inner .eyebrow {
  margin-bottom: 14px;
}

.page-faq .faq-hero-inner h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(32px, 7vw, 64px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin: 0 0 18px;
  text-shadow: 0 0 26px rgba(92, 242, 230, 0.22);
}

.page-faq .faq-lede {
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink);
  margin: 0 0 26px;
  max-width: 34em;
}

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

.page-faq .faq-jump a {
  display: inline-block;
  padding: 6px 12px;
  border: 1px solid var(--faq-line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--cyan);
  text-decoration: none;
  transition: background-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-faq .faq-jump a:hover,
.page-faq .faq-jump a:focus-visible {
  background: rgba(92, 242, 230, 0.14);
  color: var(--white);
}

/* ---------- 搜索条 ---------- */
.page-faq .faq-search {
  padding-top: 34px;
  padding-bottom: 6px;
}

.page-faq .faq-search-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 10px;
}

.page-faq .faq-search-field {
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--faq-line);
  background: linear-gradient(90deg, rgba(18, 46, 54, 0.55), rgba(36, 19, 56, 0.4));
  padding: 0 14px;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-faq .faq-search-field:focus-within {
  border-color: var(--cyan);
  box-shadow: 0 0 0 1px var(--cyan), 0 0 24px rgba(92, 242, 230, 0.18);
}

.page-faq .faq-search-prompt {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--cyan);
}

.page-faq .faq-search-input {
  flex: 1 1 auto;
  min-width: 0;
  border: 0;
  background: transparent;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.6;
  padding: 16px 0;
}

.page-faq .faq-search-input::placeholder {
  color: rgba(154, 168, 192, 0.7);
}

.page-faq .faq-search-input:focus {
  outline: none;
}

.page-faq .faq-search-hint {
  margin: 10px 0 0;
  font-size: 13px;
  color: var(--muted);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  align-items: start;
  padding-top: 26px;
  padding-bottom: 64px;
}

/* ---------- 左侧目录 ---------- */
.page-faq .faq-index-card {
  position: relative;
  isolation: isolate;
  background: var(--panel);
  border: 1px solid var(--faq-line-soft);
  padding: 20px 18px 22px;
  box-shadow:
    7px 7px 0 -1px rgba(92, 242, 230, 0.09),
    7px 7px 0 0 rgba(92, 242, 230, 0.24);
}

.page-faq .faq-index-title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--faq-line-soft);
  padding-bottom: 12px;
}

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

.page-faq .faq-index-list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 8px 9px 4px;
  color: var(--ink);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.5;
  border-left: 2px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-faq .faq-index-list .idx {
  color: var(--violet);
  font-size: 12px;
  transition: color 0.2s var(--ease);
}

.page-faq .faq-index-list a:hover,
.page-faq .faq-index-list a:focus-visible {
  color: var(--white);
  border-left-color: var(--cyan);
  background: rgba(92, 242, 230, 0.08);
}

.page-faq .faq-index-list a:hover .idx,
.page-faq .faq-index-list a:focus-visible .idx {
  color: var(--cyan);
}

.page-faq .faq-index-foot {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px dashed var(--faq-line-soft);
}

.page-faq .faq-index-foot p {
  margin: 0 0 14px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-index-foot .btn {
  width: 100%;
  text-align: center;
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 22px;
  grid-template-columns: minmax(0, 1fr);
}

.page-faq .faq-group {
  --tint-a: rgba(18, 46, 54, 0.62);
  --tint-b: rgba(11, 18, 32, 0.34);
  --accent: var(--cyan);
  position: relative;
  padding: 24px 18px 22px;
  border: 1px solid var(--faq-line-soft);
  background-image: linear-gradient(162deg, var(--tint-a), var(--tint-b) 78%);
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.page-faq #g-versions {
  --tint-a: rgba(36, 19, 56, 0.66);
}

.page-faq #g-mobile {
  --tint-a: rgba(18, 46, 54, 0.5);
}

.page-faq #g-editorial {
  --tint-a: rgba(36, 19, 56, 0.52);
}

.page-faq #g-contact {
  --tint-a: rgba(58, 18, 36, 0.68);
  --tint-b: rgba(36, 19, 56, 0.34);
  --accent: var(--amber);
}

.page-faq .faq-group::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 72px;
  height: 2px;
  background: var(--accent);
  opacity: 0.8;
}

.page-faq .faq-group-head {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 18px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--faq-line-soft);
}

.page-faq .faq-group-idx {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
  color: transparent;
  -webkit-text-stroke: 1px var(--accent);
  opacity: 0.75;
}

.page-faq .faq-group-head h2 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.3;
  margin: 0 0 6px;
  color: var(--white);
}

.page-faq .faq-group-head p {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 折叠条目 ---------- */
.page-faq .faq-item {
  border-top: 1px solid var(--faq-line-soft);
  background-image: linear-gradient(180deg, rgba(5, 7, 15, 0.32), rgba(5, 7, 15, 0));
}

.page-faq .faq-item:first-of-type {
  border-top: 0;
}

.page-faq .faq-item summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: start;
  padding: 16px 2px;
  cursor: pointer;
  list-style: none;
  transition: color 0.2s var(--ease);
}

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

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

.page-faq .faq-item summary:focus-visible {
  outline: 2px double var(--cyan);
  outline-offset: 2px;
}

.page-faq .faq-num {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--accent);
  padding-top: 3px;
}

.page-faq .faq-q {
  font-size: 15px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--ink);
  transition: color 0.2s var(--ease);
}

.page-faq .faq-arrow {
  width: 9px;
  height: 9px;
  margin-top: 7px;
  border-right: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(45deg);
  transition: transform 0.32s var(--ease);
}

.page-faq .faq-item[open] .faq-arrow {
  transform: rotate(225deg);
}

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

.page-faq .faq-a {
  margin: 0 0 18px 0;
  padding: 2px 0 4px 14px;
  border-left: 2px solid var(--accent);
}

.page-faq .faq-item[open] .faq-a {
  animation: faq-fade 0.36s var(--ease) both;
}

.page-faq .faq-a p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
  max-width: 38em;
}

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

@keyframes faq-fade {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.page-faq .faq-steps {
  counter-reset: step;
  list-style: none;
  margin: 12px 0 14px;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-faq .faq-steps li {
  counter-increment: step;
  position: relative;
  padding-left: 32px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
  max-width: 36em;
}

.page-faq .faq-steps li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
}

/* ---------- 手机端分组：图文并排 ---------- */
.page-faq .faq-group-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.page-faq .faq-figure {
  margin: 0;
  border: 1px solid var(--faq-line-soft);
  background: var(--panel);
  padding: 8px;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 3 / 4;
}

.page-faq .faq-figure figcaption {
  padding: 10px 4px 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 联系卡片 ---------- */
.page-faq .faq-contact-card {
  margin-top: 20px;
  padding: 18px 16px 20px;
  border: 1px solid rgba(255, 184, 77, 0.34);
  background: linear-gradient(150deg, rgba(255, 184, 77, 0.1), rgba(58, 18, 36, 0.42));
}

.page-faq .faq-contact-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-faq .faq-contact-list {
  margin: 0 0 16px;
  display: grid;
  gap: 12px;
}

.page-faq .faq-contact-list div {
  display: grid;
  gap: 3px;
}

.page-faq .faq-contact-list dt {
  font-size: 12px;
  color: var(--muted);
}

.page-faq .faq-contact-list dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.6;
  color: var(--white);
  word-break: break-word;
}

.page-faq .faq-tail {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.9;
  color: var(--muted);
  padding-top: 16px;
  border-top: 1px dashed var(--faq-line-soft);
}

.page-faq .faq-tail a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(92, 242, 230, 0.45);
}

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

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero-inner {
    padding-top: 34px;
    padding-bottom: 52px;
  }

  .page-faq .faq-search {
    padding-top: 44px;
  }

  .page-faq .faq-group {
    padding: 30px 28px 26px;
  }

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

  .page-faq .faq-group-head h2 {
    font-size: 26px;
  }

  .page-faq .faq-contact-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px 24px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-shell {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    gap: 48px;
    padding-top: 34px;
    padding-bottom: 84px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 26px);
  }

  .page-faq .faq-list {
    gap: 26px;
  }

  .page-faq .faq-group-split {
    grid-template-columns: minmax(0, 1fr) 208px;
    gap: 24px;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-index-card {
    padding: 24px 22px 26px;
  }

  .page-faq .faq-group {
    padding: 34px 34px 30px;
  }

  .page-faq .faq-group-split {
    grid-template-columns: minmax(0, 1fr) 248px;
  }

  .page-faq .faq-hero-inner {
    max-width: 820px;
  }
}
<<<END>>>