.page-faq {
  --faq-line: rgba(46, 78, 126, 0.3);
  position: relative;
  padding-block: 32px 72px;
  color: var(--white);
  background:
    radial-gradient(92% 56% at 88% -10%, rgba(47, 240, 214, 0.09), transparent 62%),
    radial-gradient(72% 48% at 2% 22%, rgba(255, 122, 47, 0.055), transparent 58%);
  overflow-x: clip;
}

.page-faq .breadcrumb {
  margin-bottom: 26px;
}

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

/* ---------- 首屏声明区 ---------- */
.page-faq .faq-intro {
  display: grid;
  gap: 16px;
  padding-bottom: 4px;
}

.page-faq .faq-intro h1 {
  margin: 0;
  font-size: clamp(1.95rem, 8vw, 3.4rem);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.015em;
}

.page-faq .faq-intro h1 em {
  display: block;
  font-style: normal;
  color: var(--cyan);
}

.page-faq .faq-lede {
  margin: 0;
  max-width: 62ch;
  color: var(--mist);
  font-size: 1rem;
  line-height: 1.85;
}

.page-faq .faq-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 4px;
}

.page-faq .faq-meta span {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 7px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line-soft);
  background: rgba(16, 31, 60, 0.72);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-faq .faq-meta b {
  color: var(--white);
  font-weight: 600;
}

/* ---------- 场景索引 ---------- */
.page-faq .faq-index {
  display: grid;
  gap: 26px;
  margin-top: 38px;
  align-items: center;
}

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

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

.page-faq .faq-index__body h2 {
  margin: 8px 0 10px;
  font-size: clamp(1.4rem, 5.2vw, 1.95rem);
  font-weight: 800;
  line-height: 1.26;
  letter-spacing: -0.01em;
}

.page-faq .faq-index__body > p {
  margin: 0 0 16px;
  color: var(--mist);
  font-size: 0.94rem;
  line-height: 1.8;
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-index__item {
  display: grid;
  grid-template-columns: 2.3rem 1fr;
  gap: 2px 12px;
  padding: 13px 0;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-index__item b {
  grid-row: span 2;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--cyan);
  padding-top: 3px;
}

.page-faq .faq-index__item strong {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--white);
}

.page-faq .faq-index__item span {
  font-size: 0.84rem;
  line-height: 1.65;
  color: var(--mist);
}

/* ---------- 点阵分隔带 ---------- */
.page-faq .faq-dots {
  height: 20px;
  margin: 32px 0 8px;
  background-image: radial-gradient(rgba(127, 166, 201, 0.32) 1.1px, transparent 1.1px);
  background-size: 13px 13px;
  opacity: 0.55;
}

/* ---------- 分组切换 ---------- */
.page-faq .faq-switch {
  position: relative;
  margin-top: 6px;
}

.page-faq .faq-radio {
  position: absolute;
  top: 0;
  left: 0;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
  pointer-events: none;
}

.page-faq .faq-panel__title {
  margin: 0 0 6px;
  font-size: clamp(1.2rem, 4.8vw, 1.55rem);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -0.01em;
}

.page-faq .faq-panel__note {
  margin: 0 0 16px;
  color: var(--mist);
  font-size: 0.88rem;
  line-height: 1.75;
}

.page-faq .faq-tabs {
  display: flex;
  gap: 10px;
  margin: 0 -2px;
  padding: 4px 2px 18px;
  overflow-x: auto;
  scrollbar-width: none;
  overscroll-behavior-x: contain;
  -webkit-overflow-scrolling: touch;
}

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

.page-faq .faq-tab {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 11px 18px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line);
  background: rgba(16, 31, 60, 0.66);
  color: var(--mist);
  font-size: 0.9rem;
  font-weight: 600;
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
  transition: color 0.22s var(--ease), background 0.22s var(--ease),
    border-color 0.22s var(--ease), transform 0.22s var(--ease);
}

.page-faq .faq-tab i {
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--ink-4);
  transition: color 0.22s var(--ease);
}

.page-faq .faq-tab:hover {
  transform: translateY(-2px);
  color: var(--white);
  border-color: var(--ink-4);
}

.page-faq .faq-radio:focus-visible ~ .faq-tabs {
  outline: 2px dashed rgba(47, 240, 214, 0.55);
  outline-offset: 6px;
  border-radius: var(--radius-m);
}

.page-faq #faq-g1:checked ~ .faq-tabs [for="faq-g1"],
.page-faq #faq-g2:checked ~ .faq-tabs [for="faq-g2"],
.page-faq #faq-g3:checked ~ .faq-tabs [for="faq-g3"],
.page-faq #faq-g4:checked ~ .faq-tabs [for="faq-g4"] {
  color: var(--cyan);
  background: var(--cyan-deep);
  border-color: rgba(47, 240, 214, 0.5);
  box-shadow: 0 0 0 1px rgba(47, 240, 214, 0.14),
    0 14px 30px -18px var(--glow-cyan);
}

.page-faq #faq-g1:checked ~ .faq-tabs [for="faq-g1"] i,
.page-faq #faq-g2:checked ~ .faq-tabs [for="faq-g2"] i,
.page-faq #faq-g3:checked ~ .faq-tabs [for="faq-g3"] i,
.page-faq #faq-g4:checked ~ .faq-tabs [for="faq-g4"] i {
  color: rgba(47, 240, 214, 0.78);
}

.page-faq .faq-panel {
  display: none;
}

.page-faq #faq-g1:checked ~ .faq-panel[data-panel="1"],
.page-faq #faq-g2:checked ~ .faq-panel[data-panel="2"],
.page-faq #faq-g3:checked ~ .faq-panel[data-panel="3"],
.page-faq #faq-g4:checked ~ .faq-panel[data-panel="4"] {
  display: block;
  animation: faqPanelIn 0.38s var(--ease) both;
}

@keyframes faqPanelIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

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

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

.page-faq .faq-item > summary {
  position: relative;
  list-style: none;
  padding: 16px 42px 16px 2px;
  font-size: 0.96rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--white);
  cursor: pointer;
  transition: color 0.2s var(--ease);
}

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

.page-faq .faq-item > summary::after {
  content: "+";
  position: absolute;
  top: 50%;
  right: 8px;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 1.05rem;
  line-height: 1;
  color: var(--ink-4);
  transition: color 0.2s var(--ease);
}

.page-faq .faq-item[open] > summary::after {
  content: "\2212";
  color: var(--cyan);
}

.page-faq .faq-item > summary:hover,
.page-faq .faq-item > summary:hover::after {
  color: var(--cyan);
}

.page-faq .faq-a {
  margin: 0 20px 18px 2px;
  padding: 2px 2px 2px 15px;
  border-left: 2px solid var(--cyan);
  color: var(--mist);
  font-size: 0.9rem;
  line-height: 1.85;
}

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

.page-faq .faq-next {
  display: inline-block;
  margin-top: 10px;
  color: var(--cyan);
  font-size: 0.86rem;
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-thickness: 1px;
  text-decoration-color: rgba(47, 240, 214, 0.42);
  transition: text-decoration-color 0.2s var(--ease);
}

.page-faq .faq-next:hover {
  text-decoration-color: var(--cyan);
}

/* ---------- 人工协助 ---------- */
.page-faq .faq-help {
  display: grid;
  gap: 26px;
  margin-top: 4px;
}

.page-faq .faq-help__body h2 {
  margin: 6px 0 12px;
  font-size: clamp(1.4rem, 5.4vw, 2rem);
  font-weight: 800;
  line-height: 1.26;
  letter-spacing: -0.01em;
}

.page-faq .faq-help__body > p {
  margin: 0 0 16px;
  color: var(--mist);
  font-size: 0.94rem;
  line-height: 1.82;
}

.page-faq .faq-contact {
  display: grid;
  gap: 12px;
  margin: 4px 0 18px;
  padding: 20px;
  border-radius: var(--radius-m);
  border: 1px solid var(--line-soft);
  background: linear-gradient(158deg, rgba(16, 31, 60, 0.92), rgba(10, 20, 40, 0.58));
}

.page-faq .faq-contact__row {
  display: grid;
  gap: 3px;
  padding-bottom: 11px;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-contact__row:last-of-type {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-faq .faq-contact__label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-4);
}

.page-faq .faq-contact__value {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--white);
  word-break: break-word;
}

.page-faq .faq-contact__note {
  margin: 0;
  padding-top: 12px;
  border-top: 1px solid var(--faq-line);
  font-size: 0.83rem;
  line-height: 1.72;
  color: var(--mist);
}

.page-faq .faq-help__links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  margin: 0;
}

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

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

/* ---------- 断点 ---------- */
@media (min-width: 620px) {
  .page-faq .faq-meta span {
    font-size: 0.76rem;
  }

  .page-faq .faq-tab {
    font-size: 0.94rem;
  }

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

  .page-faq .faq-contact__note {
    grid-column: 1 / -1;
  }

  .page-faq .faq-contact__row:last-of-type {
    padding-bottom: 11px;
    border-bottom: 1px solid var(--faq-line);
  }
}

@media (min-width: 880px) {
  .page-faq {
    padding-block: 46px 96px;
  }

  .page-faq .faq-index {
    grid-template-columns: 1.06fr 0.94fr;
    gap: 44px;
    margin-top: 46px;
  }

  .page-faq .faq-help {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 48px;
    align-items: center;
  }

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

  .page-faq .faq-item > summary {
    padding: 18px 46px 18px 4px;
    font-size: 1rem;
  }

  .page-faq .faq-a {
    margin-left: 4px;
    margin-right: 30%;
    padding-left: 18px;
  }

  .page-faq .faq-dots {
    margin: 42px 0 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-panel {
    animation: none !important;
  }

  .page-faq .faq-tab,
  .page-faq .faq-tab i,
  .page-faq .faq-item > summary,
  .page-faq .faq-item > summary::after,
  .page-faq .faq-next {
    transition: none;
  }

  .page-faq .faq-tab:hover {
    transform: none;
  }
}