.page-faq {
  --faq-measure: 46ch;
  --faq-anchor-gap: 96px;
}

/* 首屏 */
.page-faq .breadcrumb {
  padding-top: 1.1rem;
  margin-bottom: 0;
}

.page-faq .faq-hero {
  position: relative;
  margin-top: 1rem;
  padding: clamp(2rem, 5vw, 3.4rem) 0 clamp(4rem, 8vw, 6rem);
  color: var(--on-dark);
  background:
    radial-gradient(120% 140% at 88% 8%, rgba(46, 158, 155, .32), transparent 58%),
    radial-gradient(90% 120% at 4% 100%, rgba(232, 72, 59, .26), transparent 62%),
    linear-gradient(158deg, var(--deep-sea), var(--abyss));
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 3rem), 0 100%);
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: clamp(1.4rem, 4vw, 2.6rem);
  align-items: center;
}

.page-faq .faq-hero__eyebrow {
  margin: 0 0 .9rem;
  font-size: var(--fz-13);
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-faq .faq-hero h1 {
  margin: 0 0 1.1rem;
  font-size: var(--fz-40);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -.01em;
  color: var(--pearl);
}

.page-faq .faq-hero__lead {
  margin: 0 0 1.3rem;
  max-width: 38ch;
  font-size: var(--fz-17);
  line-height: 1.85;
  color: var(--on-dark);
}

.page-faq .faq-hero__meta {
  margin: 0;
  padding-top: .9rem;
  border-top: 1px dashed rgba(246, 243, 238, .28);
  font-size: var(--fz-13);
  letter-spacing: .06em;
  color: var(--on-dark-dim);
}

.page-faq .faq-hero__figure {
  margin: 0 auto;
  max-width: 420px;
  width: 100%;
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  background: var(--abyss);
  border: 1px solid rgba(246, 243, 238, .22);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
}

/* 区块标题 */
.page-faq .faq-sec-head {
  max-width: 60ch;
  margin-bottom: clamp(1.2rem, 3vw, 2rem);
}

.page-faq .faq-sec-head__index {
  margin: 0 0 .5rem;
  font-size: var(--fz-28);
  font-weight: 700;
  line-height: 1;
  color: var(--coral);
}

.page-faq .faq-sec-head h2 {
  margin: 0 0 .6rem;
  font-size: var(--fz-28);
  font-weight: 900;
  line-height: 1.2;
  color: var(--ink);
}

.page-faq .faq-sec-head__note {
  margin: 0;
  font-size: var(--fz-15);
  line-height: 1.75;
  color: var(--mist);
}

/* 三十秒自检 */
.page-faq .faq-check {
  padding: clamp(2.4rem, 6vw, 4rem) 0 clamp(1.6rem, 4vw, 2.4rem);
}

.page-faq .faq-check__grid {
  display: grid;
  gap: clamp(1.2rem, 3vw, 2rem);
}

.page-faq .faq-check__list {
  display: grid;
  gap: .9rem;
}

.page-faq .faq-check__card {
  position: relative;
  display: grid;
  gap: .4rem;
  padding: 1.05rem 1.3rem 1.05rem 1.4rem;
  color: var(--ink);
  text-decoration: none;
  background: var(--cream);
  border: 1px solid var(--line-soft);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
  transition: transform .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-check__card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--amber);
}

.page-faq .faq-check__card:hover,
.page-faq .faq-check__card:focus-visible {
  transform: translateY(-2px);
  border-color: var(--coral);
}

.page-faq .faq-check__num {
  font-size: var(--fz-15);
  letter-spacing: .18em;
  color: var(--coral);
}

.page-faq .faq-check__q {
  font-size: var(--fz-18);
  font-weight: 500;
  line-height: 1.6;
}

.page-faq .faq-check__go {
  font-size: var(--fz-13);
  letter-spacing: .04em;
  color: var(--deep-sea);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-check__card:hover .faq-check__go {
  color: var(--coral);
}

.page-faq .faq-check__card--split {
  background: transparent;
  border-style: dashed;
}

.page-faq .faq-check__card--split::before {
  background: var(--mist);
}

.page-faq .faq-check__links {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem 1.2rem;
}

.page-faq .faq-check__links a {
  font-size: var(--fz-13);
  color: var(--deep-sea);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-check__links a:hover,
.page-faq .faq-check__links a:focus-visible {
  color: var(--coral);
}

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

.page-faq .faq-check__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  background: var(--cream);
  border: 1px solid var(--line-soft);
  border-bottom: 3px solid var(--tide);
}

.page-faq .faq-check__figure figcaption {
  margin-top: .6rem;
  font-size: var(--fz-13);
  letter-spacing: .06em;
  color: var(--mist);
}

/* 手风琴索引 */
.page-faq .faq-index {
  padding: clamp(2.2rem, 5vw, 3.4rem) 0 clamp(2.6rem, 6vw, 4rem);
  background: var(--cream);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-group {
  scroll-margin-top: var(--faq-anchor-gap);
}

.page-faq .faq-group__title {
  display: flex;
  align-items: baseline;
  gap: .7rem;
  margin: 0 0 .7rem;
  font-size: var(--fz-20);
  font-weight: 900;
  line-height: 1.3;
  color: var(--ink);
}

.page-faq .faq-group__num {
  font-size: var(--fz-15);
  letter-spacing: .16em;
  color: var(--coral);
}

.page-faq .faq-group__count {
  margin-left: auto;
  font-size: var(--fz-13);
  font-weight: 400;
  letter-spacing: .06em;
  color: var(--mist);
}

.page-faq .rule--slant {
  margin: clamp(1.6rem, 4vw, 2.6rem) 0;
}

.page-faq .faq-list {
  border-top: 1px solid var(--line);
}

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

.page-faq .faq-item summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: .8rem;
  align-items: baseline;
  padding: .95rem 1rem;
  cursor: pointer;
  list-style: none;
  transition: background .2s var(--ease);
}

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

.page-faq .faq-item summary::marker {
  content: "";
}

.page-faq .faq-item summary:hover {
  background: rgba(46, 158, 155, .08);
}

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

.page-faq .faq-item__num {
  font-size: var(--fz-28);
  line-height: 1;
  color: var(--mist);
  transition: color .2s var(--ease);
}

.page-faq .faq-item__q {
  font-size: var(--fz-18);
  font-weight: 500;
  line-height: 1.6;
  color: var(--ink);
}

.page-faq .faq-item__mark {
  font-size: var(--fz-18);
  color: var(--mist);
}

.page-faq .faq-item__mark::before {
  content: "＋";
}

.page-faq .faq-item[open] {
  background: rgba(232, 72, 59, .04);
}

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

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

.page-faq .faq-item[open] .faq-item__mark::before {
  content: "－";
  color: var(--coral);
}

.page-faq .faq-item__body {
  max-height: 62vh;
  overflow: auto;
  padding: 0 1rem 1.15rem calc(1rem + 2.9rem);
}

.page-faq .faq-item__body p {
  margin: 0 0 .8rem;
  max-width: var(--faq-measure);
  font-size: var(--fz-17);
  line-height: 1.8;
  color: var(--ink);
}

.page-faq .faq-act {
  display: inline-block;
  padding: .4rem .8rem;
  font-size: var(--fz-13);
  letter-spacing: .04em;
  color: var(--coral);
  text-decoration: none;
  background: transparent;
  border: 1px solid var(--coral);
  clip-path: polygon(0 0, calc(100% - 9px) 0, 100% 9px, 100% 100%, 0 100%);
  transition: background .2s var(--ease), color .2s var(--ease);
}

.page-faq a.faq-act:hover,
.page-faq a.faq-act:focus-visible {
  color: var(--pearl);
  background: var(--coral);
}

.page-faq p.faq-act--step {
  display: inline-block;
  margin: .2rem 0 0;
  font-size: var(--fz-13);
  color: var(--deep-sea);
  background: rgba(240, 138, 60, .16);
  border: 1px solid rgba(240, 138, 60, .5);
  clip-path: polygon(0 0, calc(100% - 9px) 0, 100% 9px, 100% 100%, 0 100%);
}

.page-faq p.faq-act--step .mono {
  margin-right: .5rem;
  color: var(--coral);
}

/* 术语对照 */
.page-faq .faq-terms-block {
  padding: clamp(2.4rem, 6vw, 4rem) 0;
}

.page-faq .faq-terms-block__note {
  margin: 0;
  font-size: var(--fz-15);
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-terms {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.page-faq .faq-terms th,
.page-faq .faq-terms td {
  padding: .85rem .2rem;
  border-bottom: 1px solid var(--line-soft);
  vertical-align: top;
  font-size: var(--fz-15);
  line-height: 1.75;
  font-weight: 400;
}

.page-faq .faq-terms th {
  width: 6.6rem;
  padding-right: 1rem;
  font-family: var(--mono);
  color: var(--deep-sea);
  white-space: nowrap;
}

.page-faq .faq-terms td {
  color: var(--ink);
}

.page-faq .faq-terms tr:hover th {
  color: var(--coral);
}

/* 兜底引导 */
.page-faq .faq-cta {
  padding: clamp(2.4rem, 6vw, 4rem) 0 clamp(3rem, 7vw, 4.6rem);
  background: linear-gradient(172deg, var(--deep-sea), var(--abyss));
  color: var(--on-dark);
}

.page-faq .faq-cta__inner {
  display: grid;
  gap: clamp(1.4rem, 3vw, 2rem);
  align-items: end;
}

.page-faq .faq-cta__eyebrow {
  margin: 0 0 .8rem;
  font-size: var(--fz-13);
  letter-spacing: .2em;
  color: var(--amber);
}

.page-faq .faq-cta h2 {
  margin: 0 0 1rem;
  font-size: var(--fz-28);
  font-weight: 900;
  line-height: 1.2;
  color: var(--pearl);
}

.page-faq .faq-cta__list {
  margin: 0 0 1rem;
  padding: 0;
  list-style: none;
  counter-reset: faq-tip;
  display: grid;
  gap: .7rem;
  max-width: 52ch;
}

.page-faq .faq-cta__list li {
  position: relative;
  counter-increment: faq-tip;
  padding-left: 2.2rem;
  font-size: var(--fz-17);
  line-height: 1.85;
  color: var(--on-dark);
}

.page-faq .faq-cta__list li::before {
  content: counter(faq-tip, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: .3rem;
  font-family: var(--mono);
  font-size: var(--fz-13);
  color: var(--amber);
}

.page-faq .faq-cta__note {
  margin: 0;
  max-width: 52ch;
  font-size: var(--fz-15);
  line-height: 1.75;
  color: var(--on-dark-dim);
}

.page-faq .faq-cta__act .btn {
  white-space: nowrap;
}

/* 平板与桌面 */
@media (min-width: 760px) {
  .page-faq .faq-hero h1 {
    font-size: var(--fz-56);
  }

  .page-faq .faq-sec-head h2,
  .page-faq .faq-cta h2 {
    font-size: var(--fz-40);
  }

  .page-faq .faq-terms th {
    width: 9.5rem;
    font-size: var(--fz-17);
  }

  .page-faq .faq-terms th,
  .page-faq .faq-terms td {
    padding: .95rem .7rem;
    font-size: var(--fz-17);
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, .75fr);
  }

  .page-faq .faq-hero__figure {
    max-width: 100%;
  }

  .page-faq .faq-check__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-faq .faq-terms-block {
    display: grid;
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: clamp(1.6rem, 4vw, 3rem);
    align-items: start;
  }

  .page-faq .faq-terms-block__head {
    position: sticky;
    top: 2rem;
  }

  .page-faq .faq-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-check__card,
  .page-faq .faq-item summary,
  .page-faq .faq-item__num,
  .page-faq .faq-act {
    transition: none;
  }

  .page-faq .faq-check__card:hover,
  .page-faq .faq-check__card:focus-visible {
    transform: none;
  }
}