.page-faq {
  position: relative;
  padding-bottom: clamp(40px, 6vw, 88px);
  background:
    radial-gradient(1100px 560px at 84% -8%, rgba(59, 107, 255, .18), transparent 64%),
    radial-gradient(760px 460px at 4% 16%, rgba(47, 232, 176, .07), transparent 68%);
}

.page-faq .breadcrumb {
  padding-top: clamp(20px, 3vw, 34px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  align-items: start;
  padding-top: clamp(18px, 3vw, 30px);
  padding-bottom: clamp(34px, 5vw, 62px);
}

.page-faq .faq-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 clamp(14px, 2vw, 20px);
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .16em;
  color: var(--haze);
}

.page-faq .faq-hero__eyebrow-code {
  padding: 3px 8px;
  border: 1px solid var(--grid);
  color: var(--amber);
}

.page-faq h1 {
  margin: 0;
  max-width: 15ch;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(2rem, 4.4vw, 3.1rem);
  line-height: 1.14;
  letter-spacing: -.012em;
  color: var(--star);
}

.page-faq .faq-hero__accent {
  font-family: var(--font-serif);
  font-style: normal;
  font-weight: 600;
  color: var(--mint);
}

.page-faq .faq-hero__lead {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  max-width: 40em;
  font-size: clamp(1rem, 1.15vw, 1.08rem);
  line-height: 1.82;
  color: var(--haze);
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  margin: clamp(24px, 3vw, 34px) 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__facts li {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--grid);
  background: var(--glass);
  font-size: .86rem;
  color: var(--haze);
}

.page-faq .faq-hero__num {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--mint);
}

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

.page-faq .media-frame__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .media-frame__cap {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .06em;
  color: var(--haze);
}

/* ---------- 七项检查 ---------- */
.page-faq .faq-checks {
  padding-top: clamp(26px, 4vw, 46px);
  padding-bottom: clamp(34px, 5vw, 64px);
}

.page-faq .section-title {
  margin-bottom: clamp(14px, 2vw, 20px);
}

.page-faq .faq-checks__hint {
  margin: 0 0 clamp(20px, 3vw, 30px);
  max-width: 44em;
  font-size: .95rem;
  line-height: 1.8;
  color: var(--haze);
}

.page-faq .faq-checks__list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0 0 0 clamp(12px, 2vw, 20px);
  list-style: none;
  border-left: 1px solid var(--grid);
}

.page-faq .check-list__item {
  display: flex;
  gap: clamp(12px, 1.6vw, 18px);
  align-items: flex-start;
  width: 100%;
  padding: clamp(14px, 1.8vw, 20px);
  border: 1px solid var(--grid);
  background: var(--glass);
  color: var(--star);
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-faq .check-list__item:hover {
  border-color: var(--blue);
}

.page-faq .check-list__item:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 2px;
}

.page-faq .check-list__item[data-done] {
  border-color: var(--mint);
  background: rgba(47, 232, 176, .07);
}

.page-faq .check-list__box {
  position: relative;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin-top: 4px;
  border: 1px solid var(--haze);
  transition: border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-faq .check-list__item[data-done] .check-list__box {
  border-color: var(--mint);
  background: var(--mint);
}

.page-faq .check-list__item[data-done] .check-list__box::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 6px;
  height: 11px;
  border-right: 2px solid var(--deep);
  border-bottom: 2px solid var(--deep);
  transform: rotate(42deg);
}

.page-faq .faq-check__body {
  display: block;
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-check__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
}

.page-faq .faq-check__num {
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .08em;
  color: var(--amber);
  transition: color .2s var(--ease);
}

.page-faq .check-list__item[data-done] .faq-check__num {
  color: var(--mint);
}

.page-faq .faq-check__name {
  font-size: 1.02rem;
  font-weight: 700;
}

.page-faq .faq-check__desc {
  display: block;
  margin-top: 8px;
  font-size: .92rem;
  line-height: 1.78;
  color: var(--haze);
}

.page-faq .check-list__item[data-done] .faq-check__desc {
  color: var(--star);
  opacity: .78;
}

.page-faq .faq-check__mark {
  display: block;
  margin-top: 10px;
  padding: 6px 0 6px 12px;
  border-left: 2px solid var(--orange);
  font-size: .86rem;
  line-height: 1.7;
  color: var(--orange);
}

/* ---------- 问答 ---------- */
.page-faq .faq-qa {
  padding-top: clamp(10px, 2vw, 20px);
  padding-bottom: clamp(30px, 5vw, 56px);
}

.page-faq .faq-qa__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 clamp(24px, 3vw, 36px);
}

.page-faq .faq-tab {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  border: 1px solid var(--grid);
  background: transparent;
  color: var(--haze);
  font-size: .85rem;
  text-decoration: none;
  transition: border-color .2s var(--ease), color .2s var(--ease);
}

.page-faq .faq-tab:hover,
.page-faq .faq-tab:focus-visible {
  border-color: var(--blue);
  color: var(--star);
}

.page-faq .faq-group {
  padding-top: clamp(20px, 3vw, 32px);
  border-top: 1px solid var(--grid);
  scroll-margin-top: 96px;
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(28px, 4vw, 48px);
}

.page-faq .faq-group--split {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
  align-items: start;
}

.page-faq .faq-group__title {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 clamp(14px, 2vw, 20px);
  font-family: var(--font-sans);
  font-size: clamp(1.15rem, 2vw, 1.5rem);
  font-weight: 700;
  line-height: 1.35;
  color: var(--star);
}

.page-faq .faq-group__code {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .1em;
  color: var(--amber);
}

.page-faq .faq-group__lede {
  margin: 0;
  max-width: 34em;
  font-size: .95rem;
  line-height: 1.82;
  color: var(--haze);
}

.page-faq .faq-group__figure {
  margin: clamp(18px, 2.4vw, 24px) 0 0;
}

.page-faq .faq-group__items {
  min-width: 0;
}

.page-faq .faq-item {
  border: 1px solid var(--grid);
  background: var(--glass);
  transition: border-color .2s var(--ease);
}

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

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

.page-faq .faq-item__q {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: clamp(14px, 1.8vw, 18px) clamp(16px, 2vw, 22px);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.62;
  color: var(--star);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item__q::after {
  content: "+";
  flex: 0 0 auto;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  line-height: 1;
  color: var(--mint);
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "\2212";
}

.page-faq .faq-item[open] .faq-item__q {
  box-shadow: inset 3px 0 0 var(--mint);
}

.page-faq .faq-item__code {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .06em;
  color: var(--amber);
}

.page-faq .faq-item__text {
  min-width: 0;
}

.page-faq .faq-item__a {
  padding: 0 clamp(16px, 2vw, 22px) clamp(16px, 2vw, 20px);
  border-top: 1px solid var(--grid);
}

.page-faq .faq-item__a p {
  margin: 14px 0 0;
  max-width: 44em;
  font-size: .95rem;
  line-height: 1.82;
  color: var(--haze);
}

.page-faq .faq-item__a strong,
.page-faq .faq-next__panel strong {
  font-family: var(--font-mono);
  font-size: .92em;
  font-weight: 700;
  color: var(--star);
}

.page-faq .faq-item__a a,
.page-faq .faq-next__lede a {
  color: var(--mint);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 收束 ---------- */
.page-faq .faq-next {
  padding-top: clamp(20px, 3vw, 36px);
}

.page-faq .faq-next__panel {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 3.4vw, 46px);
  border: 1px solid var(--grid);
  background: linear-gradient(135deg, rgba(59, 107, 255, .16), rgba(47, 232, 176, .06) 62%, transparent);
}

.page-faq .faq-next__panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: .5;
  pointer-events: none;
  -webkit-mask-image: radial-gradient(72% 82% at 96% 0%, #000, transparent 74%);
  mask-image: radial-gradient(72% 82% at 96% 0%, #000, transparent 74%);
}

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

.page-faq .faq-next__panel h2 {
  margin: clamp(10px, 1.6vw, 16px) 0 0;
  max-width: 22em;
  font-family: var(--font-sans);
  font-size: clamp(1.3rem, 2.4vw, 1.9rem);
  font-weight: 700;
  line-height: 1.34;
  color: var(--star);
}

.page-faq .faq-next__lede {
  margin: clamp(14px, 2vw, 20px) 0 0;
  max-width: 46em;
  font-size: .96rem;
  line-height: 1.82;
  color: var(--haze);
}

.page-faq .faq-next__list {
  display: grid;
  gap: 10px;
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-next__list li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: .94rem;
  line-height: 1.75;
  color: var(--haze);
}

.page-faq .faq-next__list li::before {
  content: "";
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  margin-top: 9px;
  background: var(--mint);
  transform: rotate(45deg);
}

.page-faq .faq-next__k {
  color: var(--star);
  font-weight: 700;
}

.page-faq .faq-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
}

/* ---------- 响应式 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: 7fr 5fr;
  }

  .page-faq .faq-group--split {
    grid-template-columns: 5fr 7fr;
  }

  .page-faq .faq-hero__figure {
    margin-top: clamp(30px, 4vw, 46px);
  }
}

@media (max-width: 520px) {
  .page-faq .faq-hero__facts {
    flex-direction: column;
    align-items: flex-start;
  }

  .page-faq .check-list__item {
    gap: 10px;
  }

  .page-faq .faq-next__actions .btn {
    width: 100%;
    justify-content: center;
    text-align: center;
  }
}

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