.page-faq {
  --faq-rule: rgba(10, 33, 28, 0.14);
  --faq-rule-soft: rgba(10, 33, 28, 0.08);
  --faq-rule-gold: rgba(201, 163, 78, 0.42);
  --faq-pad: clamp(52px, 8vw, 96px);
  background: var(--paper-050);
  color: var(--black-900);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 3vw, 30px) 0 clamp(50px, 7vw, 86px);
  background:
    radial-gradient(115% 85% at 90% -14%, rgba(201, 163, 78, 0.18), transparent 62%),
    linear-gradient(180deg, var(--ink-950) 0%, var(--ink-900) 100%);
  color: var(--paper-050);
  border-bottom: 3px solid var(--flame-500);
}

.page-faq .faq-hero .breadcrumb__list {
  margin: 0;
  padding: 0;
}

.page-faq .faq-hero .breadcrumb__link,
.page-faq .faq-hero .breadcrumb__item {
  color: var(--mist-300);
  font-size: 13px;
  letter-spacing: 0.06em;
}

.page-faq .faq-hero .breadcrumb__link:hover {
  color: var(--gold-300);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(30px, 5vw, 48px);
  margin-top: clamp(26px, 4vw, 42px);
}

.page-faq .faq-hero__title {
  margin: 12px 0 0;
  font-size: clamp(1.85rem, 5vw, 3.3rem);
  line-height: 1.16;
  letter-spacing: -0.01em;
  font-weight: 900;
  color: var(--paper-050);
  max-width: 18ch;
}

.page-faq .faq-hero__text {
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  max-width: 40em;
  font-size: clamp(15px, 1.6vw, 17.5px);
  line-height: 1.82;
  color: rgba(244, 247, 242, 0.84);
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  margin-top: clamp(24px, 3.6vw, 36px);
}

.page-faq .faq-jump__link {
  display: inline-block;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--faq-rule-gold);
  color: var(--gold-300);
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-faq .faq-jump__link:hover,
.page-faq .faq-jump__link:focus-visible {
  color: var(--flame-500);
  border-color: var(--flame-500);
}

.page-faq .faq-hero__figure {
  padding-top: 18px;
  border-top: 1px solid var(--faq-rule-gold);
}

.page-faq .faq-hero__num {
  display: block;
  font-size: clamp(3.2rem, 9vw, 5rem);
  line-height: 0.9;
  font-weight: 600;
  color: var(--gold-500);
  letter-spacing: -0.02em;
}

.page-faq .faq-hero__cap {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(244, 247, 242, 0.72);
  max-width: 26em;
}

.page-faq .faq-hero__meta {
  margin: 16px 0 0;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--mist-300);
}

/* ---------- 首图 ---------- */
.page-faq .faq-figure {
  margin: 0;
  padding: clamp(36px, 6vw, 68px) 0 0;
}

.page-faq .faq-figure__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--faq-rule-soft);
}

.page-faq .faq-figure__cap {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  align-items: baseline;
  margin-top: 14px;
  padding-left: 14px;
  border-left: 2px solid var(--gold-500);
  font-size: 14px;
  line-height: 1.7;
  color: var(--green-600);
}

.page-faq .faq-figure__cap .mono {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--ink-900);
}

/* ---------- 主体：粘性索引 + 问答 ---------- */
.page-faq .faq-body {
  padding: var(--faq-pad) 0 calc(var(--faq-pad) * 0.9);
}

.page-faq .faq-body__hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.page-faq .faq-body__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(30px, 5vw, 54px);
}

.page-faq .faq-side__inner {
  padding-top: 16px;
  border-top: 2px solid var(--ink-900);
}

.page-faq .faq-side__label {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--green-600);
}

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

.page-faq .faq-side__link {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 11px 0;
  border-bottom: 1px solid var(--faq-rule-soft);
  color: var(--ink-900);
  font-size: 15px;
  text-decoration: none;
  transition: color 180ms var(--ease), padding-left 180ms var(--ease);
}

.page-faq .faq-side__link .mono {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--green-600);
}

.page-faq .faq-side__link:hover,
.page-faq .faq-side__link:focus-visible {
  color: var(--green-600);
  padding-left: 4px;
}

.page-faq .faq-side__note {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--green-600);
}

/* ---------- 问答组 ---------- */
.page-faq .faq-group {
  scroll-margin-top: 24px;
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(44px, 6vw, 72px);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-group__num {
  font-size: clamp(1.1rem, 2.4vw, 1.5rem);
  line-height: 1;
  font-weight: 600;
  color: var(--green-600);
  letter-spacing: 0.04em;
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(1.2rem, 2.6vw, 1.65rem);
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--ink-900);
}

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

.page-faq .qa__summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  padding: clamp(18px, 2.4vw, 24px) 0;
  cursor: pointer;
  list-style: none;
  transition: color 180ms var(--ease);
}

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

.page-faq .qa__summary::marker {
  content: "";
}

.page-faq .qa__summary:hover .qa__q,
.page-faq .qa__summary:focus-visible .qa__q {
  color: var(--green-600);
}

.page-faq .qa__num {
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 600;
  color: var(--green-600);
  letter-spacing: 0.02em;
}

.page-faq .qa__q {
  font-size: clamp(15.5px, 1.7vw, 17.5px);
  font-weight: 700;
  line-height: 1.55;
  color: var(--ink-900);
  transition: color 180ms var(--ease);
}

.page-faq .qa__dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--gold-500);
  align-self: center;
  transition: background 260ms var(--ease), transform 260ms var(--ease);
}

.page-faq .qa[open] .qa__dot {
  background: var(--flame-500);
  transform: scale(1.3);
}

.page-faq .qa[open] .qa__summary {
  color: var(--green-600);
}

.page-faq .qa__body {
  max-width: 62ch;
  padding: 0 0 clamp(20px, 2.6vw, 28px) 34px;
}

.page-faq .qa__body p {
  margin: 0;
  font-size: clamp(15px, 1.6vw, 16.5px);
  line-height: 1.85;
  color: rgba(10, 33, 28, 0.86);
}

.page-faq .qa__body a {
  color: var(--green-600);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--gold-500);
}

.page-faq .qa__body a:hover {
  color: var(--flame-500);
}

/* ---------- 组内插图 ---------- */
.page-faq .faq-inline {
  margin: clamp(20px, 3vw, 28px) 0;
  padding: 0;
}

.page-faq .faq-inline__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: var(--radius);
}

.page-faq .faq-inline__cap {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  align-items: baseline;
  margin-top: 12px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--green-600);
}

.page-faq .faq-inline__cap .mono {
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--ink-900);
}

/* ---------- 操作路径 ---------- */
.page-faq .faq-paths {
  padding: var(--faq-pad) 0;
  background:
    radial-gradient(90% 70% at 8% 0%, rgba(27, 74, 62, 0.9), transparent 60%),
    var(--ink-900);
  color: var(--paper-050);
}

.page-faq .faq-paths__head {
  max-width: 46em;
}

.page-faq .faq-paths__title {
  margin: 14px 0 0;
  font-size: clamp(1.55rem, 3.6vw, 2.4rem);
  line-height: 1.25;
  font-weight: 900;
  color: var(--paper-050);
}

.page-faq .faq-paths__lede {
  margin: 14px 0 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(244, 247, 242, 0.72);
}

.page-faq .faq-paths__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin-top: clamp(32px, 5vw, 52px);
  border-top: 1px solid var(--faq-rule-gold);
}

.page-faq .faq-path {
  position: relative;
  padding: 26px 0 28px;
  border-bottom: 1px solid rgba(201, 163, 78, 0.22);
}

.page-faq .faq-path__idx {
  display: inline-block;
  font-size: clamp(2rem, 5vw, 2.9rem);
  line-height: 1;
  font-weight: 600;
  color: var(--gold-500);
}

.page-faq .faq-path__name {
  margin: 10px 0 0;
  font-size: clamp(1.1rem, 2.2vw, 1.32rem);
  font-weight: 800;
  color: var(--paper-050);
}

.page-faq .faq-path__steps {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: faqstep;
}

.page-faq .faq-path__steps li {
  position: relative;
  counter-increment: faqstep;
  padding: 7px 0 7px 34px;
  font-size: 14.5px;
  line-height: 1.65;
  color: rgba(244, 247, 242, 0.8);
}

.page-faq .faq-path__steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 7px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--flame-500);
}

.page-faq .faq-paths__foot {
  margin: clamp(28px, 4vw, 40px) 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(244, 247, 242, 0.68);
  max-width: 52em;
}

.page-faq .faq-paths__foot a {
  color: var(--gold-300);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(201, 163, 78, 0.6);
}

.page-faq .faq-paths__foot a:hover {
  color: var(--flame-500);
}

/* ---------- 术语 ---------- */
.page-faq .faq-glossary {
  padding: var(--faq-pad) 0;
  background: var(--paper-100);
}

.page-faq .faq-glossary__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 44px);
}

.page-faq .faq-glossary__title {
  margin: 14px 0 0;
  font-size: clamp(1.45rem, 3.2vw, 2.1rem);
  line-height: 1.28;
  font-weight: 900;
  color: var(--ink-900);
}

.page-faq .faq-glossary__text {
  margin: 14px 0 0;
  font-size: 15.5px;
  line-height: 1.82;
  color: rgba(10, 33, 28, 0.78);
  max-width: 30em;
}

.page-faq .faq-gloss {
  margin: 0;
  border-top: 1px solid rgba(10, 33, 28, 0.18);
}

.page-faq .faq-gloss__item {
  padding: 18px 0 20px;
  border-bottom: 1px solid rgba(10, 33, 28, 0.12);
}

.page-faq .faq-gloss__term {
  font-size: 15.5px;
  font-weight: 800;
  color: var(--ink-900);
  letter-spacing: 0.02em;
}

.page-faq .faq-gloss__term::before {
  content: "";
  display: inline-block;
  width: 16px;
  height: 2px;
  margin-right: 10px;
  vertical-align: middle;
  background: var(--gold-500);
}

.page-faq .faq-gloss__def {
  margin: 8px 0 0 26px;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(10, 33, 28, 0.8);
}

/* ---------- 仍未解决 ---------- */
.page-faq .faq-stuck {
  padding: var(--faq-pad) 0 calc(var(--faq-pad) * 0.85);
  background: var(--paper-050);
}

.page-faq .faq-stuck__panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 44px);
  padding: clamp(28px, 5vw, 52px);
  background: linear-gradient(150deg, var(--ink-950) 0%, var(--green-600) 100%);
  border-radius: var(--radius);
  color: var(--paper-050);
  position: relative;
  overflow: hidden;
}

.page-faq .faq-stuck__panel::after {
  content: "";
  position: absolute;
  right: -80px;
  bottom: -120px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  border: 1px solid rgba(201, 163, 78, 0.28);
  pointer-events: none;
}

.page-faq .faq-stuck__title {
  margin: 14px 0 0;
  font-size: clamp(1.5rem, 3.4vw, 2.15rem);
  line-height: 1.25;
  font-weight: 900;
  color: var(--paper-050);
}

.page-faq .faq-stuck__lede {
  margin: 16px 0 0;
  font-size: 15.5px;
  line-height: 1.82;
  color: rgba(244, 247, 242, 0.82);
  max-width: 38em;
}

.page-faq .faq-stuck__note {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist-300);
  max-width: 38em;
}

.page-faq .faq-stuck__contact {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
  position: relative;
  z-index: 1;
}

.page-faq .faq-stuck__mail {
  font-size: clamp(15px, 2.6vw, 20px);
  font-weight: 700;
  color: var(--gold-300);
  text-decoration: none;
  word-break: break-all;
  border-bottom: 1px solid var(--faq-rule-gold);
  padding-bottom: 3px;
}

.page-faq .faq-stuck__mail:hover {
  color: var(--flame-500);
  border-color: var(--flame-500);
}

.page-faq .faq-stuck__tel {
  font-size: clamp(1.3rem, 3.4vw, 1.8rem);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--paper-050);
  text-decoration: none;
}

.page-faq .faq-stuck__tel:hover {
  color: var(--gold-300);
}

.page-faq .faq-stuck__contact .btn {
  margin-top: 6px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-paths__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0 clamp(22px, 3vw, 40px);
  }

  .page-faq .faq-path {
    padding: 30px 0 32px;
    border-bottom: 0;
    border-right: 1px solid rgba(201, 163, 78, 0.2);
    padding-right: clamp(18px, 2.6vw, 32px);
  }

  .page-faq .faq-path:last-child {
    border-right: 0;
    padding-right: 0;
  }

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

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 0.75fr);
    align-items: end;
  }

  .page-faq .faq-glossary__grid {
    grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
    gap: clamp(36px, 5vw, 72px);
    align-items: start;
  }

  .page-faq .faq-stuck__panel {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr);
    align-items: center;
  }

  .page-faq .faq-stuck__contact {
    align-items: flex-end;
    text-align: right;
  }

  .page-faq .faq-gloss__def {
    margin-left: 26px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-body__grid {
    grid-template-columns: minmax(180px, 224px) minmax(0, 1fr);
    gap: clamp(44px, 6vw, 84px);
    align-items: start;
  }

  .page-faq .faq-side__inner {
    position: sticky;
    top: 24px;
  }

  .page-faq .faq-side__list {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .page-faq .qa__body {
    padding-left: 46px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__dot,
  .page-faq .qa__q,
  .page-faq .qa__summary,
  .page-faq .faq-side__link,
  .page-faq .faq-jump__link {
    transition: none;
  }

  .page-faq .qa[open] .qa__dot {
    transform: none;
  }
}