.page-faq {
  --faq-card: #ffffff;
  --faq-hair: rgba(8, 26, 41, 0.16);
  --faq-line-soft: rgba(199, 213, 224, 0.28);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  padding: 20px 0 72px;
}

.page-faq .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--graphite);
  margin-bottom: 14px;
}

.page-faq .breadcrumbs a {
  color: var(--abyss);
  text-decoration: none;
  border-bottom: 1px solid var(--graphite);
}

.page-faq .breadcrumbs a:hover,
.page-faq .breadcrumbs a:focus-visible {
  border-bottom-color: var(--cyan);
}

/* 首屏 */
.page-faq .faq-hero {
  background: var(--abyss);
  color: var(--paper);
  border: 2px solid var(--abyss);
  box-shadow: var(--shadow-hard);
  padding: clamp(24px, 4vw, 48px);
}

.page-faq .faq-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-faq .faq-kicker::before {
  content: "";
  width: 18px;
  height: 2px;
  background: var(--cyan);
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(28px, 5.4vw, 56px);
  line-height: 1.04;
  letter-spacing: -0.01em;
  margin: 14px 0 0;
  max-width: 22ch;
  font-weight: 800;
}

.page-faq .faq-lede {
  margin: 18px 0 0;
  max-width: 58ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-facts {
  list-style: none;
  margin: 28px 0 0;
  padding: 20px 0 0;
  border-top: 1px solid var(--faq-line-soft);
  display: grid;
  gap: 16px;
}

.page-faq .faq-facts li {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-faq .faq-fact-num {
  font-size: clamp(19px, 2.4vw, 26px);
  color: var(--amber);
  letter-spacing: 0.08em;
}

.page-faq .faq-fact-label {
  font-size: 13px;
  color: var(--mist);
}

/* 问题索引 */
.page-faq .faq-index {
  margin-top: 32px;
  background: var(--teal);
  color: var(--paper);
  border: 2px solid var(--abyss);
  box-shadow: var(--shadow-hard);
  padding: clamp(20px, 3vw, 32px);
}

.page-faq .faq-index__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 2px solid rgba(45, 226, 208, 0.35);
}

.page-faq .faq-index__head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(19px, 2.6vw, 27px);
  line-height: 1.15;
  font-weight: 800;
}

.page-faq .faq-index__head .meta-mono {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 6px 0 0;
  padding: 0;
}

.page-faq .faq-index__link {
  display: grid;
  grid-template-columns: 34px 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 14px 6px;
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-line-soft);
  transition: background-color 160ms var(--ease), padding-left 160ms var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  background: rgba(45, 226, 208, 0.12);
  padding-left: 12px;
}

.page-faq .faq-index__no {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-faq .faq-index__txt {
  font-size: 15px;
  line-height: 1.5;
}

.page-faq .faq-index__go {
  color: var(--amber);
  font-family: var(--font-mono);
}

/* 三段主体 */
.page-faq .faq-seg {
  --seg-accent: var(--cyan);
  --seg-ink: var(--abyss);
  margin-top: 40px;
  background: var(--faq-card);
  border: 2px solid var(--abyss);
  border-left-width: 8px;
  border-left-color: var(--seg-accent);
  box-shadow: var(--shadow-hard);
  padding: clamp(20px, 3.2vw, 36px);
}

.page-faq .faq-seg--sync {
  --seg-accent: var(--indigo);
  --seg-ink: var(--paper);
}

.page-faq .faq-seg--entry {
  --seg-accent: var(--wine);
  --seg-ink: var(--paper);
}

.page-faq .faq-seg__no {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--seg-accent);
}

.page-faq .faq-seg__head h2 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-size: clamp(21px, 3vw, 32px);
  line-height: 1.12;
  font-weight: 800;
}

.page-faq .faq-seg__lede {
  margin: 12px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--slate);
}

.page-faq .faq-seg__body {
  display: grid;
  gap: 24px;
  margin-top: 26px;
}

.page-faq .faq-seg__body > div {
  min-width: 0;
}

/* 步骤 */
.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-step {
  position: relative;
  padding: 0 0 22px 58px;
  min-height: 40px;
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  left: 21px;
  top: 38px;
  bottom: 0;
  width: 2px;
  background: var(--faq-hair);
}

.page-faq .faq-step:last-child {
  padding-bottom: 0;
}

.page-faq .faq-step:last-child::before {
  display: none;
}

.page-faq .faq-step__no {
  position: absolute;
  left: 0;
  top: 0;
  width: 44px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 17px;
  line-height: 1;
  color: var(--seg-ink);
  background: var(--seg-accent);
  border: 2px solid var(--abyss);
}

.page-faq .faq-step__title {
  margin: 2px 0 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--ink);
}

.page-faq .faq-step__note {
  margin: 5px 0 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--slate);
}

.page-faq .faq-mini-title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: clamp(18px, 2.3vw, 23px);
  line-height: 1.2;
  font-weight: 800;
}

/* 旁注卡 */
.page-faq .faq-aside {
  background: var(--slate);
  color: var(--paper);
  border: 2px solid var(--abyss);
  box-shadow: var(--shadow-hard-sm);
  padding: 18px 20px;
  align-self: start;
}

.page-faq .faq-aside__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-faq .faq-aside ul {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .faq-aside li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--mist);
}

.page-faq .faq-aside li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  background: var(--cyan);
}

.page-faq .faq-aside__next {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--faq-line-soft);
  font-size: 13px;
  line-height: 1.6;
  color: var(--paper);
}

/* 图片 */
.page-faq .faq-figure {
  margin: 26px 0 0;
  background: var(--paper);
  border: 2px solid var(--abyss);
  box-shadow: var(--shadow-hard-sm);
  overflow: hidden;
}

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

.page-faq .faq-figure figcaption {
  padding: 10px 14px;
  border-top: 2px solid var(--abyss);
  background: var(--paper);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--slate);
}

/* 子块 */
.page-faq .faq-sub {
  margin-top: 28px;
  padding: clamp(20px, 3vw, 32px);
  background: var(--faq-card);
  border: 2px solid var(--abyss);
  box-shadow: var(--shadow-hard-sm);
}

.page-faq .faq-sub h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(18px, 2.4vw, 24px);
  line-height: 1.2;
  font-weight: 800;
}

.page-faq .faq-sub__lede {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--slate);
  max-width: 64ch;
}

/* 排查路径 */
.page-faq .faq-paths {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-paths li {
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 12px;
  align-items: start;
  min-width: 0;
}

.page-faq .faq-paths__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-align: center;
  padding: 3px 0;
  color: var(--abyss);
  background: var(--cyan);
  border: 2px solid var(--abyss);
}

.page-faq .faq-paths strong {
  display: block;
  font-size: 15px;
  line-height: 1.5;
  color: var(--ink);
}

.page-faq .faq-paths p {
  margin: 3px 0 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--slate);
}

/* 内嵌版本说明 */
.page-faq .faq-inner {
  margin-top: 30px;
  padding-top: 24px;
  border-top: 2px solid var(--faq-hair);
}

.page-faq .faq-inner > p {
  margin: 0;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--slate);
}

.page-faq .faq-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--slate);
}

.page-faq .faq-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 7px;
  height: 7px;
  background: var(--amber);
  border: 1px solid var(--abyss);
}

.page-faq .faq-list strong {
  color: var(--ink);
}

/* 问答 */
.page-faq .faq-qa-area {
  margin-top: 40px;
}

.page-faq .faq-qa-area h2 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: clamp(21px, 3vw, 32px);
  line-height: 1.12;
  font-weight: 800;
}

.page-faq .faq-qa {
  background: var(--faq-card);
  border: 2px solid var(--abyss);
  box-shadow: var(--shadow-hard-sm);
  margin-bottom: 12px;
}

.page-faq .faq-qa summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  padding: 15px 18px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink);
  list-style: none;
}

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

.page-faq .faq-qa summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--abyss);
  background: var(--cyan);
  border: 2px solid var(--abyss);
  padding: 1px 7px;
}

.page-faq .faq-qa[open] summary::after {
  content: "–";
  background: var(--amber);
}

.page-faq .faq-qa__body {
  padding: 0 18px 18px;
  border-top: 2px solid var(--faq-hair);
}

.page-faq .faq-qa__body p {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--slate);
  max-width: 66ch;
}

/* 联系准备 */
.page-faq .faq-prep {
  margin-top: 40px;
  background: var(--faq-card);
  border: 2px solid var(--abyss);
  box-shadow: var(--shadow-hard);
  padding: clamp(20px, 3.2vw, 36px);
}

.page-faq .faq-prep__no {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--wine);
}

.page-faq .faq-prep__head h2 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-size: clamp(21px, 3vw, 31px);
  line-height: 1.14;
  font-weight: 800;
}

.page-faq .faq-prep__head p {
  margin: 12px 0 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--slate);
}

.page-faq .faq-checks {
  counter-reset: faq-check;
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-checks li {
  position: relative;
  padding: 13px 14px 13px 54px;
  background: var(--paper);
  border: 2px solid var(--abyss);
  box-shadow: var(--shadow-hard-sm);
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink);
}

.page-faq .faq-checks li::before {
  counter-increment: faq-check;
  content: counter(faq-check, decimal-leading-zero);
  position: absolute;
  left: 12px;
  top: 13px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  padding: 2px 5px;
  color: var(--abyss);
  background: var(--amber);
  border: 2px solid var(--abyss);
}

/* 收束 CTA */
.page-faq .faq-cta {
  margin-top: 40px;
  display: grid;
  gap: 22px;
  background: var(--abyss);
  color: var(--paper);
  border: 2px solid var(--abyss);
  box-shadow: var(--shadow-hard);
  padding: clamp(22px, 3.4vw, 40px);
}

.page-faq .faq-cta h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(21px, 3vw, 31px);
  line-height: 1.12;
  font-weight: 800;
}

.page-faq .faq-cta p {
  margin: 12px 0 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  border: 2px solid var(--abyss);
  box-shadow: var(--shadow-hard-sm);
  transition: transform 160ms var(--ease), box-shadow 160ms var(--ease);
}

.page-faq .faq-btn--primary {
  background: var(--cyan);
  color: var(--abyss);
}

.page-faq .faq-btn--ghost {
  background: transparent;
  color: var(--paper);
  border-color: var(--mist);
  box-shadow: none;
}

.page-faq .faq-btn:hover,
.page-faq .faq-btn:focus-visible {
  transform: translate(2px, 2px);
  box-shadow: none;
}

.page-faq a:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

@media (min-width: 680px) {
  .page-faq .faq-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }
}

@media (min-width: 760px) {
  .page-faq .faq-index__list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: 32px;
  }

  .page-faq .faq-paths {
    grid-template-columns: 1fr 1fr;
    column-gap: 24px;
  }

  .page-faq .faq-checks {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-seg__body {
    grid-template-columns: minmax(0, 1fr) 300px;
    align-items: start;
    gap: 32px;
  }

  .page-faq .faq-cta {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    align-items: center;
  }

  .page-faq .faq-actions {
    justify-content: flex-end;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-seg__body {
    grid-template-columns: minmax(0, 1fr) 330px;
  }
}

@media (max-width: 520px) {
  .page-faq .faq-step {
    padding-left: 50px;
  }

  .page-faq .faq-step::before {
    left: 18px;
  }

  .page-faq .faq-step__no {
    width: 38px;
    height: 30px;
    font-size: 15px;
  }

  .page-faq .faq-paths li {
    grid-template-columns: 34px 1fr;
    gap: 10px;
  }

  .page-faq .faq-index__link {
    grid-template-columns: 28px 1fr auto;
    gap: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__link,
  .page-faq .faq-btn {
    transition: none;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible,
  .page-faq .faq-btn:hover,
  .page-faq .faq-btn:focus-visible {
    transform: none;
    padding-left: 6px;
  }
}