.page-faq {
  --faq-panel: rgba(21, 11, 58, .74);
  --faq-card: rgba(30, 18, 80, .55);
  --faq-ease: cubic-bezier(.22, .61, .36, 1);
  padding-bottom: clamp(44px, 8vw, 104px);
  overflow-x: clip;
}

/* 面包屑 */
.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: clamp(14px, 2.4vw, 24px) 0 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--mist);
}
.page-faq .breadcrumb a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s ease, border-color .2s ease;
}
.page-faq .breadcrumb a:hover {
  color: var(--neon);
  border-bottom-color: var(--neon);
}
.page-faq .breadcrumb__sep {
  opacity: .55;
}

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
  display: grid;
  gap: clamp(16px, 3vw, 26px);
  padding: clamp(20px, 3.6vw, 40px) 0 clamp(22px, 3.6vw, 40px);
  border-bottom: 1px solid var(--edge-soft);
  overflow: hidden;
}
.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: -140px;
  right: -110px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  border: 1px solid var(--edge);
  box-shadow:
    inset 0 0 0 34px rgba(124, 77, 255, .07),
    0 0 0 22px rgba(53, 242, 208, .045);
  pointer-events: none;
}
.page-faq .faq-hero > * {
  position: relative;
  z-index: 1;
}
.page-faq .faq-hero h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(28px, 5.6vw, 50px);
  line-height: 1.14;
  letter-spacing: -.015em;
  color: var(--stardust);
}
.page-faq .faq-hero .lede {
  margin: 0 0 12px;
  font-family: var(--font-editorial);
  font-size: clamp(15px, 1.9vw, 18px);
  line-height: 1.72;
  color: var(--silver);
}
.page-faq .faq-hero__note {
  margin: 0;
  max-width: 42ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

/* 分类索引 */
.page-faq .faq-index {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin: clamp(22px, 3.4vw, 34px) 0 clamp(6px, 1.6vw, 14px);
}
.page-faq .faq-index a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 12px 14px;
  border: 1px solid var(--edge-soft);
  border-radius: var(--radius);
  background: var(--faq-card);
  color: var(--silver);
  font-size: 14px;
  text-decoration: none;
  transition: border-color .2s ease, color .2s ease, background-color .2s ease;
}
.page-faq .faq-index a:hover,
.page-faq .faq-index a:focus-visible {
  border-color: var(--neon);
  color: var(--stardust);
  background: rgba(30, 18, 80, .82);
  outline: none;
}
.page-faq .faq-index__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--violet);
}

/* 章节 */
.page-faq .faq-section {
  padding-top: clamp(34px, 5.4vw, 62px);
  scroll-margin-top: calc(var(--header-h) + 20px);
}
.page-faq .faq-section__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(12px, 2.2vw, 24px);
  align-items: start;
  padding-bottom: 14px;
  margin-bottom: clamp(16px, 2.6vw, 24px);
  border-bottom: 1px solid var(--edge-soft);
  transition: border-color .3s ease;
}
.page-faq .faq-section:target .faq-section__head {
  border-bottom-color: var(--neon);
}
.page-faq .faq-section__head .section-no {
  font-family: var(--font-editorial);
  font-size: clamp(34px, 6vw, 58px);
  font-weight: 700;
  line-height: .88;
  letter-spacing: -.02em;
  color: var(--violet);
}
.page-faq .faq-section h2 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(20px, 2.7vw, 28px);
  letter-spacing: -.01em;
  color: var(--stardust);
}
.page-faq .faq-section__intro {
  margin: 0;
  max-width: 48ch;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--mist);
}

/* 配图 */
.page-faq .faq-figure {
  margin: 0 0 clamp(18px, 2.6vw, 26px);
}
.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}
.page-faq .faq-figure .media-frame__caption {
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
}

/* 折叠问答 */
.page-faq .qa-list {
  display: grid;
  gap: 10px;
}
.page-faq .qa {
  border: 1px solid var(--edge-soft);
  border-left: 3px solid var(--violet);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--faq-card), rgba(10, 6, 32, .55));
  transition: border-color .24s var(--faq-ease), background-color .24s var(--faq-ease);
}
.page-faq .qa:hover {
  border-top-color: var(--edge);
  border-right-color: var(--edge);
  border-bottom-color: var(--edge);
}
.page-faq .qa[open] {
  border-left-color: var(--neon);
  border-top-color: var(--edge);
  border-right-color: var(--edge);
  border-bottom-color: var(--edge);
  background: linear-gradient(180deg, rgba(30, 18, 80, .8), rgba(10, 6, 32, .6));
}
.page-faq .qa__q {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 16px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15.5px;
  line-height: 1.5;
  color: var(--silver);
}
.page-faq .qa__q::-webkit-details-marker {
  display: none;
}
.page-faq .qa__q::marker {
  content: "";
}
.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 2px;
}
.page-faq .qa__no {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--violet);
  transition: color .24s ease;
}
.page-faq .qa[open] .qa__no {
  color: var(--neon);
}
.page-faq .qa__text {
  min-width: 0;
}
.page-faq .qa__tag {
  flex: 0 0 auto;
  margin-left: auto;
  padding: 2px 9px;
  border: 1px solid var(--edge);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .04em;
  color: var(--mist);
  white-space: nowrap;
}
.page-faq .qa__sign {
  position: relative;
  flex: 0 0 auto;
  width: 15px;
  height: 15px;
  margin-left: 10px;
}
.page-faq .qa__sign::before,
.page-faq .qa__sign::after {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 100%;
  height: 1.5px;
  background: var(--neon);
  transition: transform .24s var(--faq-ease);
}
.page-faq .qa__sign::after {
  transform: rotate(90deg);
}
.page-faq .qa[open] .qa__sign::after {
  transform: rotate(0deg);
}
.page-faq .qa__a {
  margin: 0 16px;
  padding: 14px 0 16px;
  border-top: 1px solid var(--edge-soft);
  font-size: 15px;
  line-height: 1.78;
  color: var(--silver);
}
.page-faq .qa[open] > .qa__a {
  animation: faq-reveal .24s var(--faq-ease);
}
@keyframes faq-reveal {
  from { opacity: 0; transform: translateY(-5px); }
  to { opacity: 1; transform: translateY(0); }
}
.page-faq .qa__a > p {
  margin: 0 0 10px;
  max-width: 60ch;
}
.page-faq .qa__a > p:last-child {
  margin-bottom: 0;
}
.page-faq .qa__a a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 242, 208, .4);
}
.page-faq .qa__a a:hover {
  border-bottom-color: var(--neon);
}
.page-faq .qa__after {
  color: var(--mist);
  font-size: 14px;
}

/* 步骤列表 */
.page-faq .steps {
  counter-reset: step;
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}
.page-faq .steps li {
  position: relative;
  padding-left: 36px;
  max-width: 62ch;
  font-size: 14.8px;
  line-height: 1.72;
}
.page-faq .steps li::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  display: inline-block;
  min-width: 26px;
  padding: 1px 0;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.45;
  color: var(--neon);
  background: rgba(10, 6, 32, .68);
  border: 1px solid var(--edge);
  border-radius: 2px;
}

/* 导出对照表 */
.page-faq .matrix-wrap {
  margin: 14px 0 4px;
  overflow-x: auto;
  border: 1px solid var(--edge-soft);
  border-radius: var(--radius);
  background: rgba(10, 6, 32, .52);
}
.page-faq .matrix {
  width: 100%;
  min-width: 480px;
  border-collapse: collapse;
}
.page-faq .matrix caption {
  caption-side: top;
  padding: 11px 12px 0;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--mist);
}
.page-faq .matrix th,
.page-faq .matrix td {
  padding: 9px 12px;
  text-align: left;
  border-bottom: 1px solid var(--edge-soft);
  white-space: nowrap;
}
.page-faq .matrix thead th {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .06em;
  color: var(--mist);
  background: rgba(43, 34, 112, .3);
}
.page-faq .matrix tbody td {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--silver);
}
.page-faq .matrix tbody td:first-child {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--stardust);
}
.page-faq .matrix tbody tr:last-child td {
  border-bottom: 0;
}

/* 咨询区块 */
.page-faq .faq-help {
  position: relative;
  margin-top: clamp(42px, 7vw, 84px);
  padding: clamp(22px, 4vw, 46px);
  border: 1px solid var(--edge-soft);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(124, 77, 255, .18), transparent 58%),
    var(--faq-panel);
  overflow: hidden;
}
.page-faq .faq-help::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--neon), var(--violet));
}
.page-faq .faq-help h2 {
  margin: 12px 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(20px, 2.8vw, 28px);
  letter-spacing: -.01em;
  color: var(--stardust);
}
.page-faq .faq-help__lead {
  margin: 0 0 4px;
  max-width: 46ch;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--mist);
}
.page-faq .faq-help__list {
  list-style: none;
  margin: 16px 0 20px;
  padding: 0;
  display: grid;
  gap: 9px;
  max-width: 62ch;
}
.page-faq .faq-help__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--silver);
}
.page-faq .faq-help__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .66em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--neon);
  box-shadow: 0 0 8px rgba(53, 242, 208, .65);
}
.page-faq .faq-help__k {
  color: var(--stardust);
  font-weight: 500;
}
.page-faq .faq-help__contact {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.95;
  color: var(--silver);
  word-break: break-word;
}
.page-faq .faq-help__meta {
  margin: 0;
  font-size: 13px;
  line-height: 1.72;
  color: var(--mist);
}
.page-faq .faq-help__meta a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 242, 208, .4);
}
.page-faq .faq-help__meta a:hover {
  border-bottom-color: var(--neon);
}

/* 窄屏折叠项换行 */
@media (max-width: 560px) {
  .page-faq .qa__q {
    flex-wrap: wrap;
    align-items: flex-start;
  }
  .page-faq .qa__no {
    order: 1;
    margin-top: 3px;
  }
  .page-faq .qa__sign {
    order: 2;
    margin-left: auto;
    margin-top: 4px;
  }
  .page-faq .qa__text {
    order: 3;
    flex: 1 1 100%;
    margin-top: 6px;
  }
  .page-faq .qa__tag {
    order: 4;
    margin-left: 0;
  }
  .page-faq .qa__a {
    margin: 0 14px;
  }
}

/* 桌面栅格 */
@media (min-width: 880px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    gap: clamp(30px, 5vw, 68px);
    align-items: end;
  }
  .page-faq .faq-index {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 10px;
  }
  .page-faq .qa__q {
    padding: 17px 20px;
    font-size: 16px;
  }
  .page-faq .qa__a {
    margin: 0 20px;
    padding: 16px 0 18px;
  }
  .page-faq .foq-section__head {
    align-items: end;
  }
}

/* 减少动效 */
@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .qa__no,
  .page-faq .qa__sign::before,
  .page-faq .qa__sign::after,
  .page-faq .qa__q,
  .page-faq .faq-index a {
    transition: none;
  }
  .page-faq .qa[open] > .qa__a {
    animation: none;
  }
}