.page-faq {
  --faq-radius: 4px;
  --faq-panel: rgba(16, 40, 74, .52);
  background: var(--c-void);
  color: var(--c-white);
  font-family: var(--font-body);
  padding-bottom: 96px;
}

.page-faq .breadcrumb {
  padding-top: 20px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  display: grid;
  gap: 26px;
  padding: 30px 0 38px;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -70px;
  left: -14%;
  width: 132%;
  height: 280px;
  background: linear-gradient(100deg, rgba(122, 92, 255, .30) 0%, rgba(34, 224, 255, .12) 46%, rgba(5, 11, 24, 0) 80%);
  transform: skewY(-5deg);
  pointer-events: none;
}

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

.page-faq .faq-hero__eyebrow {
  margin: 0 0 14px;
  font-size: 11.5px;
  letter-spacing: .22em;
  color: var(--c-cyan);
}

.page-faq .faq-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(40px, 10vw, 78px);
  line-height: 1.02;
  letter-spacing: -.025em;
}

.page-faq .faq-hero__accent {
  color: var(--c-cyan);
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 620px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--c-steel);
}

.page-faq .faq-hero__meta {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
}

.page-faq .faq-hero__meta li {
  position: relative;
  padding-left: 14px;
  font-size: 12px;
  color: var(--c-steel);
}

.page-faq .faq-hero__meta li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 6px;
  height: 6px;
  margin-top: -3px;
  border-radius: 50%;
  background: var(--c-green);
}

.page-faq .faq-hero__figure {
  margin: 0;
  border: 1px solid var(--c-line);
  border-radius: var(--faq-radius);
  overflow: hidden;
  background: var(--c-deep);
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1200 / 800;
  object-fit: cover;
}

/* ---------- 主体布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 32px;
  margin-top: 14px;
}

.page-faq .faq-index {
  border-top: 1px solid var(--c-line);
  padding-top: 16px;
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: .24em;
  color: var(--c-steel);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 2px;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px 9px 8px;
  border-left: 2px solid transparent;
  color: var(--c-steel);
  font-size: 14px;
  text-decoration: none;
  transition: color .2s var(--ease), border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--c-white);
  border-left-color: var(--c-cyan);
  background: rgba(34, 224, 255, .08);
}

.page-faq .faq-index__link:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 2px;
}

.page-faq .faq-index__num {
  flex: 0 0 auto;
  font-size: 11px;
  color: var(--c-cyan);
}

.page-faq .faq-canvas {
  display: grid;
  gap: 48px;
  min-width: 0;
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  min-width: 0;
  scroll-margin-top: 96px;
}

.page-faq .faq-group__head {
  display: grid;
  gap: 8px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--c-line);
}

.page-faq .faq-group__num {
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--c-orange);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 5vw, 30px);
  line-height: 1.25;
  letter-spacing: -.015em;
}

.page-faq .faq-group__lead {
  margin: 0;
  max-width: 640px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-steel);
}

/* ---------- 问答折叠 ---------- */
.page-faq .qa {
  display: grid;
}

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

.page-faq .qa__q {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 17px 0;
  list-style: none;
  cursor: pointer;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--c-white);
  transition: color .2s var(--ease);
}

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

.page-faq .qa__q::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--c-cyan);
}

.page-faq .qa__item[open] .qa__q {
  color: var(--c-cyan);
}

.page-faq .qa__item[open] .qa__q::after {
  content: "−";
  color: var(--c-orange);
}

.page-faq .qa__q:hover {
  color: var(--c-cyan);
}

.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 2px;
}

.page-faq .qa__a {
  max-width: 780px;
  padding: 0 0 20px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--c-steel);
}

.page-faq .qa__a p {
  margin: 0 0 10px;
}

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

.page-faq .qa__a strong {
  color: var(--c-white);
}

/* ---------- 步骤 ---------- */
.page-faq .qa-steps {
  list-style: none;
  margin: 14px 0 4px;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .qa-steps li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 14px;
  border-left: 2px solid var(--c-line);
  background: var(--faq-panel);
  font-size: 15px;
  line-height: 1.7;
}

.page-faq .qa-steps__num {
  flex: 0 0 auto;
  padding-top: 2px;
  font-size: 11px;
  color: var(--c-cyan);
}

/* ---------- 图 ---------- */
.page-faq .faq-figure {
  margin: 20px 0 4px;
  border: 1px solid var(--c-line);
  border-radius: var(--faq-radius);
  overflow: hidden;
  background: var(--c-deep);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1000 / 700;
  object-fit: cover;
}

/* ---------- 联系 ---------- */
.page-faq .faq-contact {
  display: grid;
  gap: 18px;
  margin-top: 22px;
  padding: 24px 22px;
  border: 1px solid rgba(34, 224, 255, .28);
  border-radius: var(--faq-radius);
  background: linear-gradient(140deg, rgba(16, 40, 74, .92), rgba(10, 27, 54, .68));
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-contact__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-contact__list li {
  display: grid;
  gap: 3px;
}

.page-faq .faq-contact__label {
  font-size: 10.5px;
  letter-spacing: .2em;
  color: var(--c-steel);
}

.page-faq .faq-contact__value {
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-white);
}

.page-faq .faq-contact__note {
  margin: 0;
  max-width: 660px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-steel);
}

/* ---------- 相关页面 ---------- */
.page-faq .faq-links {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  border-top: 1px solid var(--c-line);
}

.page-faq .faq-links a {
  display: block;
  padding: 13px 2px;
  border-bottom: 1px solid var(--c-line);
  color: var(--c-steel);
  font-size: 14.5px;
  line-height: 1.6;
  text-decoration: none;
  transition: color .2s var(--ease), padding-left .2s var(--ease);
}

.page-faq .faq-links a:hover,
.page-faq .faq-links a:focus-visible {
  color: var(--c-cyan);
  padding-left: 10px;
}

.page-faq .faq-links a:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 2px;
}

/* ---------- 中等屏幕 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-contact {
    padding: 28px 30px;
  }

  .page-faq .faq-contact__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px 28px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    align-items: center;
    column-gap: 48px;
    padding: 64px 0 60px;
  }

  .page-faq .faq-hero__figure {
    margin: 0;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: 246px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
    margin-top: 24px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 88px;
  }

  .page-faq .faq-index__list {
    grid-template-columns: 1fr;
  }

  .page-faq .faq-canvas {
    gap: 60px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__link,
  .page-faq .qa__q,
  .page-faq .faq-links a {
    transition: none;
  }
}