.page-faq {
  --faq-line: rgba(36, 26, 19, .14);
  --faq-line-strong: rgba(36, 26, 19, .3);
  --faq-muted: rgba(36, 26, 19, .66);
  --faq-glow: rgba(100, 240, 196, .28);
}

/* ============ 首屏 ============ */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: 112px 0 56px;
  color: var(--paper);
  background:
    radial-gradient(120% 82% at 84% 0%, rgba(100, 240, 196, .17), transparent 58%),
    linear-gradient(158deg, var(--grass-deep) 0%, var(--ink-green) 64%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 5px;
  background: repeating-linear-gradient(90deg, var(--cyan) 0 2px, transparent 2px 16px);
  opacity: .55;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: min(46%, 460px);
  height: 3px;
  background: linear-gradient(90deg, var(--score-orange), rgba(255, 90, 43, 0));
}

.page-faq .faq-hero-inner,
.page-faq .faq-hero-media {
  position: relative;
  z-index: 1;
}

.page-faq .breadcrumb {
  margin-bottom: 26px;
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--mist);
}

.page-faq .breadcrumb-link {
  color: var(--cyan);
  text-decoration: none;
}

.page-faq .breadcrumb-link:hover {
  text-decoration: underline;
}

.page-faq .breadcrumb-sep {
  margin: 0 8px;
  color: rgba(143, 167, 156, .7);
}

.page-faq .faq-eyebrow {
  margin: 0 0 14px;
  color: var(--cyan);
  letter-spacing: .22em;
  text-transform: uppercase;
}

.page-faq .faq-hero h1 {
  margin: 0;
  max-width: 18ch;
  font-family: var(--font-display);
  font-size: clamp(32px, 9vw, 74px);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -.03em;
  color: var(--paper);
}

.page-faq .faq-lead {
  margin: 22px 0 0;
  max-width: 60ch;
  font-size: clamp(15px, 3.6vw, 17px);
  line-height: 1.78;
  color: rgba(237, 229, 210, .84);
}

.page-faq .faq-hero-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 20px;
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero-stats li {
  padding-left: 12px;
  border-left: 2px solid var(--cyan);
}

.page-faq .faq-stat-num {
  display: block;
  font-family: var(--font-data);
  font-size: clamp(22px, 6vw, 30px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-stat-label {
  display: block;
  margin-top: 4px;
  font-size: 12.5px;
  line-height: 1.5;
  color: rgba(237, 229, 210, .72);
}

.page-faq .faq-side-note {
  display: none;
}

.page-faq .faq-hero-media {
  margin: 40px auto 0;
}

.page-faq .faq-hero-media img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--faq-glow);
  border-radius: var(--radius);
}

/* ============ 分类说明 ============ */
.page-faq .faq-intro {
  padding: 56px 0;
}

.page-faq .faq-intro-grid {
  display: grid;
  gap: 34px;
}

.page-faq .faq-badge-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 62px;
  height: 62px;
  margin-bottom: 18px;
  border: 1px solid var(--score-orange);
  border-radius: 50%;
  background: rgba(255, 90, 43, .1);
  color: var(--score-orange);
  font-family: var(--font-data);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: .06em;
}

.page-faq .faq-intro h2 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: clamp(25px, 6vw, 38px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -.02em;
  color: var(--brown-ink);
}

.page-faq .faq-intro-text p {
  margin: 0 0 20px;
  font-size: 16px;
  line-height: 1.78;
  color: rgba(36, 26, 19, .8);
}

.page-faq .faq-points {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-faq .faq-points li {
  position: relative;
  padding-left: 22px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--brown-ink);
}

.page-faq .faq-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--grass-mid);
  box-shadow: 0 0 0 3px rgba(31, 92, 69, .14);
}

.page-faq .faq-intro-figure {
  margin: 0;
}

.page-faq .faq-intro-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  background: var(--ink-green);
}

.page-faq .faq-intro-figure figcaption {
  margin-top: 10px;
  color: rgba(36, 26, 19, .58);
  letter-spacing: .12em;
}

/* ============ 索引 + 问答 ============ */
.page-faq .faq-directory {
  padding: 52px 0 72px;
}

.page-faq .faq-directory-head {
  margin-bottom: 30px;
}

.page-faq .faq-directory-head h2 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(24px, 5.6vw, 34px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -.02em;
  color: var(--brown-ink);
}

.page-faq .faq-directory-sub {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--faq-muted);
}

.page-faq .faq-shell {
  display: grid;
  gap: 26px;
}

.page-faq .faq-index-list {
  display: grid;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-index-title {
  margin: 0 0 12px;
  color: var(--grass-mid);
  letter-spacing: .2em;
}

.page-faq .filter-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  width: 100%;
  padding: 13px 8px 13px 16px;
  border: 0;
  border-bottom: 1px solid var(--faq-line);
  background: transparent;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  color: var(--brown-ink);
  text-align: left;
  cursor: pointer;
  transition: background .2s var(--ease), color .2s var(--ease);
}

.page-faq .filter-btn::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  bottom: 12px;
  width: 3px;
  border-radius: 2px;
  background: transparent;
  transition: background .2s var(--ease);
}

.page-faq .filter-btn:hover,
.page-faq .filter-btn:focus-visible {
  background: rgba(31, 92, 69, .08);
  color: var(--ink-green);
  outline: none;
}

.page-faq .filter-btn:hover::before,
.page-faq .filter-btn:focus-visible::before,
.page-faq .filter-btn.is-active::before,
.page-faq .filter-btn[aria-pressed="true"]::before {
  background: var(--score-orange);
}

.page-faq .filter-btn.is-active,
.page-faq .filter-btn[aria-pressed="true"] {
  color: var(--ink-green);
  background: rgba(255, 90, 43, .08);
}

.page-faq .filter-count {
  font-family: var(--font-data);
  font-size: 12px;
  font-weight: 600;
  color: var(--grass-mid);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-index-note {
  margin: 16px 0 0;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--faq-muted);
}

.page-faq .faq-group {
  margin-bottom: 34px;
  scroll-margin-top: 96px;
}

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

.page-faq .faq-group-head {
  display: flex;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--ink-green);
}

.page-faq .faq-group-num {
  padding-top: 6px;
  font-size: 13px;
  font-weight: 700;
  color: var(--score-orange);
}

.page-faq .faq-group-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(19px, 4.6vw, 25px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -.02em;
  color: var(--brown-ink);
}

.page-faq .faq-group-desc {
  margin: 6px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--faq-muted);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--faq-line);
  transition: background .25s var(--ease);
}

.page-faq .faq-item[open] {
  background: rgba(31, 92, 69, .09);
}

.page-faq .faq-q {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  gap: 10px;
  padding: 17px 8px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--brown-ink);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-q::before {
  content: "";
  width: 0;
  height: 0;
  margin-top: 7px;
  border-left: 7px solid var(--cyan);
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
  transition: transform .2s var(--ease);
}

.page-faq .faq-item[open] .faq-q::before {
  transform: rotate(90deg);
}

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

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

.page-faq .faq-a {
  padding: 0 8px 20px 38px;
}

.page-faq .faq-a p {
  margin: 0;
  max-width: 68ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(36, 26, 19, .82);
}

.page-faq .faq-a a {
  color: var(--grass-mid);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-a a:hover {
  color: var(--score-orange);
}

/* ============ 收束带 ============ */
.page-faq .faq-cta {
  padding: 56px 0 64px;
  color: var(--paper);
  background: linear-gradient(180deg, var(--ink-green) 0%, var(--grass-deep) 100%);
  border-top: 3px solid var(--score-orange);
}

.page-faq .faq-cta h2 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(23px, 5.4vw, 33px);
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-faq .faq-cta-sub {
  margin: 0;
  max-width: 58ch;
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(237, 229, 210, .76);
}

.page-faq .faq-cta-grid {
  display: grid;
  gap: 16px;
  margin: 26px 0 0;
}

.page-faq .faq-cta-card {
  display: block;
  padding: 22px 20px;
  border: 1px solid rgba(100, 240, 196, .26);
  border-radius: var(--radius);
  background: rgba(100, 240, 196, .05);
  color: var(--paper);
  text-decoration: none;
  transition: transform .25s var(--ease), border-color .25s var(--ease), background .25s var(--ease);
}

.page-faq .faq-cta-card:hover,
.page-faq .faq-cta-card:focus-visible {
  transform: translateY(-3px);
  border-color: var(--cyan);
  background: rgba(100, 240, 196, .12);
  outline: none;
}

.page-faq .faq-cta-num {
  display: block;
  margin-bottom: 12px;
  font-size: 12.5px;
  letter-spacing: .18em;
  color: var(--cyan);
}

.page-faq .faq-cta-card h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-faq .faq-cta-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(237, 229, 210, .74);
}

.page-faq .faq-cta-note {
  margin: 26px 0 0;
  padding-top: 20px;
  border-top: 1px solid rgba(100, 240, 196, .2);
  max-width: 78ch;
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--mist);
}

/* ============ 断点 ============ */
@media (min-width: 640px) {
  .page-faq .faq-hero-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-cta-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-points {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px 24px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 152px 0 72px;
  }

  .page-faq .faq-side-note {
    display: block;
    position: absolute;
    right: 20px;
    top: 190px;
    z-index: 2;
    margin: 0;
    color: rgba(100, 240, 196, .62);
    letter-spacing: .34em;
  }

  .page-faq .faq-intro {
    padding: 84px 0;
  }

  .page-faq .faq-intro-grid {
    grid-template-columns: 1.08fr .92fr;
    align-items: center;
    gap: 56px;
  }

  .page-faq .faq-directory {
    padding: 76px 0 96px;
  }

  .page-faq .faq-shell {
    grid-template-columns: 288px minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-faq .faq-index-inner {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }

  .page-faq .faq-cta {
    padding: 78px 0 84px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .filter-btn,
  .page-faq .faq-item,
  .page-faq .faq-q::before,
  .page-faq .faq-cta-card {
    transition: none;
  }

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