.page-faq {
  --faq-pad: 52px;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-faq *,
.page-faq *::before,
.page-faq *::after {
  box-sizing: border-box;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding: 56px 0 44px;
  background: var(--night);
  color: var(--paper);
  overflow: hidden;
  isolation: isolate;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -24%;
  right: -12%;
  width: 82%;
  height: 150%;
  background: linear-gradient(148deg, rgba(18, 169, 87, 0.46) 0%, rgba(46, 125, 247, 0.22) 52%, rgba(4, 23, 14, 0) 78%);
  clip-path: polygon(30% 0, 100% 0, 100% 100%, 0 72%);
  pointer-events: none;
  z-index: -1;
}

.page-faq .faq-hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(111, 227, 160, 0.09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(111, 227, 160, 0.09) 1px, transparent 1px);
  background-size: 88px 88px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.95), transparent 88%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.95), transparent 88%);
  pointer-events: none;
  z-index: -1;
}

.page-faq .faq-hero__inner {
  position: relative;
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-faq .faq-hero .crumbs {
  margin-bottom: 6px;
}

.page-faq .faq-hero__title {
  margin: 4px 0 0;
  font-size: clamp(30px, 6vw, 58px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  font-weight: 300;
  color: var(--paper);
  max-width: 15em;
}

.page-faq .faq-hero__lede {
  margin: 0;
  color: var(--on-dark);
  font-size: 16px;
  line-height: 1.8;
}

.page-faq .faq-hero__jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__jump a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 8px 15px;
  border: 1px solid var(--hair-dark);
  border-radius: var(--radius-pill);
  color: var(--on-dark);
  font-size: 13px;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease), background-color 0.25s var(--ease);
}

.page-faq .faq-hero__jump a:hover,
.page-faq .faq-hero__jump a:focus-visible {
  color: var(--night);
  background: var(--leaf);
  border-color: var(--leaf);
}

/* ---------- 区块骨架 ---------- */

.page-faq .faq-section {
  padding: var(--faq-pad) 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-steps.faq-section {
  border-top: 0;
}

.page-faq .faq-section--tint {
  background: linear-gradient(180deg, rgba(18, 169, 87, 0.06) 0%, rgba(18, 169, 87, 0) 68%);
}

.page-faq .faq-head {
  display: grid;
  gap: 10px;
  margin-bottom: 26px;
  max-width: 760px;
}

.page-faq .faq-head .label {
  color: var(--grass);
  margin: 0;
}

.page-faq .faq-head .h-section {
  margin: 0;
}

.page-faq .faq-head .lede {
  margin: 0;
}

.page-faq .faq-head__note {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-70);
  max-width: 620px;
}

.page-faq .faq-figure {
  margin: 30px 0 0;
}

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

/* ---------- 三步上手 ---------- */

.page-faq .steps {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: faqstep;
}

.page-faq .step {
  position: relative;
  padding: 24px 20px 22px;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.page-faq .step::before {
  content: "";
  position: absolute;
  top: 0;
  left: 20px;
  width: 42px;
  height: 3px;
  border-radius: 0 0 3px 3px;
  background: linear-gradient(90deg, var(--grass), var(--lamp));
}

.page-faq .step__num {
  margin: 6px 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--grass);
}

.page-faq .step__title {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--ink);
}

.page-faq .step__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink-70);
}

/* ---------- 问答条目 ---------- */

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

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

.page-faq .qa__q {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 18px 2px;
  margin: 0;
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
  transition: color 0.2s var(--ease);
}

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

.page-faq .qa__q::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 600;
  line-height: 1;
  color: var(--grass);
  transform: translateY(2px);
}

.page-faq .qa[open] .qa__q {
  color: var(--grass);
}

.page-faq .qa[open] .qa__q::after {
  content: "–";
  color: var(--lamp);
}

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

.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--data);
  outline-offset: 3px;
  border-radius: 4px;
}

.page-faq .qa__a {
  padding: 0 0 20px;
  max-width: 680px;
}

.page-faq .qa__a p {
  margin: 0 0 10px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ink-70);
}

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

/* ---------- 术语小抄 ---------- */

.page-faq .glossary {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-faq .glossary__row {
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .glossary__term {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--night);
}

.page-faq .glossary__def {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-70);
}

/* ---------- 求助入口 ---------- */

.page-faq .help-links {
  display: grid;
  gap: 14px;
}

.page-faq .help-link {
  display: grid;
  gap: 7px;
  padding: 22px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: #ffffff;
  color: var(--ink);
  text-decoration: none;
  box-shadow: var(--shadow-card);
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.page-faq .help-link:hover,
.page-faq .help-link:focus-visible {
  border-color: var(--grass);
  transform: translateY(-2px);
  box-shadow: var(--shadow-soft);
}

.page-faq .help-link__to {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--grass);
}

.page-faq .help-link__title {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
}

.page-faq .help-link__text {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-70);
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-faq {
    --faq-pad: 68px;
  }

  .page-faq .faq-hero {
    padding: 74px 0 60px;
  }

  .page-faq .steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }

  .page-faq .step {
    padding: 28px 22px 24px;
  }

  .page-faq .qa__q {
    padding: 20px 4px;
    font-size: 17.5px;
  }

  .page-faq .glossary {
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: 56px;
  }

  .page-faq .glossary__row {
    padding: 17px 0;
  }

  .page-faq .help-links {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-faq .faq-figure {
    margin-top: 34px;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    column-gap: 64px;
    align-items: end;
  }

  .page-faq .faq-hero__inner > .crumbs,
  .page-faq .faq-hero__inner > .label,
  .page-faq .faq-hero__title {
    grid-column: 1 / -1;
  }

  .page-faq .faq-hero__lede {
    grid-column: 1 / 2;
  }

  .page-faq .faq-hero__jump {
    grid-column: 2 / 3;
    justify-content: flex-end;
    align-self: end;
    margin-top: 10px;
  }

  .page-faq .faq-head {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    column-gap: 56px;
    align-items: end;
    max-width: none;
  }

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

  .page-faq .faq-head .h-section {
    grid-column: 1 / 2;
  }

  .page-faq .faq-head .lede,
  .page-faq .faq-head__note {
    grid-column: 2 / 3;
    max-width: 620px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-hero__jump a,
  .page-faq .qa__q,
  .page-faq .help-link {
    transition-duration: 0.001ms;
  }

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