.page-faq {
  --faq-gap: clamp(14px, 2.2vw, 20px);
  background: var(--c-deep);
  color: var(--c-white);
  padding-bottom: clamp(56px, 9vw, 110px);
}

.page-faq .faq-topbar {
  padding-top: 16px;
  padding-bottom: 4px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(16px, 3vw, 32px) 0 clamp(34px, 5.6vw, 66px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(47, 168, 255, 0.14), transparent 55%),
    radial-gradient(90% 80% at 4% 100%, rgba(255, 106, 26, 0.12), transparent 60%);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3.5vw, 44px);
  align-items: end;
}

.page-faq .faq-hero__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(38px, 6.4vw, 78px);
  line-height: 1.03;
  letter-spacing: -0.01em;
  color: var(--c-white);
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 30em;
  font-size: 16.5px;
  line-height: 1.75;
  color: rgba(244, 247, 242, 0.78);
}

.page-faq .hero-status {
  list-style: none;
  margin: 0;
  padding: 20px 22px 18px;
  display: grid;
  gap: 10px;
  position: relative;
  background: var(--c-turf);
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  overflow: hidden;
}

.page-faq .hero-status::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: repeating-linear-gradient(90deg, var(--c-orange) 0 10px, transparent 10px 24px);
  opacity: 0.9;
}

.page-faq .hero-status li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 9px;
  border-bottom: 1px dashed rgba(244, 247, 242, 0.12);
}

.page-faq .hero-status li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-faq .hero-status__k {
  font-size: 13.5px;
  color: var(--c-muted);
}

.page-faq .hero-status__v {
  font-family: var(--font-mono);
  font-size: 17px;
  letter-spacing: 0.02em;
  color: var(--c-orange);
  white-space: nowrap;
}

/* ---------- 双栏骨架 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
  padding-top: clamp(30px, 5vw, 54px);
}

/* ---------- 左侧索引 ---------- */
.page-faq .faq-index__inner {
  position: sticky;
  top: calc(var(--h-header) + 22px);
}

.page-faq .faq-index__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--c-muted);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-index__link {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 8px;
  align-items: baseline;
  padding: 10px 8px 10px 13px;
  border-left: 3px solid transparent;
  color: var(--c-muted);
  font-size: 14.5px;
  line-height: 1.45;
  text-decoration: none;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--c-lamp);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--c-white);
  border-left-color: var(--c-orange);
  background: rgba(20, 81, 60, 0.55);
}

.page-faq .faq-index__link:hover .faq-index__num,
.page-faq .faq-index__link:focus-visible .faq-index__num {
  color: var(--c-orange-soft);
}

/* ---------- 答案卡 ---------- */
.page-faq .faq-answers {
  display: grid;
  gap: var(--faq-gap);
  min-width: 0;
}

.page-faq .faq-card {
  position: relative;
  background: linear-gradient(180deg, rgba(20, 81, 60, 0.72), rgba(11, 43, 34, 0.55));
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  scroll-margin-top: calc(var(--h-header) + 20px);
  transition: border-color 0.22s var(--ease);
  min-width: 0;
}

.page-faq .faq-card:hover {
  border-color: rgba(255, 106, 26, 0.38);
}

.page-faq .faq-card:target {
  border-color: var(--c-orange);
}

.page-faq .faq-card__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 13px;
  align-items: center;
  padding: 18px 20px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-card__head:focus-visible {
  outline: 2px solid var(--c-blue);
  outline-offset: -2px;
}

.page-faq .faq-card__num {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--c-orange);
}

.page-faq .faq-card__q {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 2.3vw, 25px);
  line-height: 1.25;
  color: var(--c-white);
}

.page-faq .faq-card__arrow {
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--c-orange);
  border-bottom: 2px solid var(--c-orange);
  transform: rotate(45deg) translate(-3px, -3px);
  transition: transform 0.24s var(--ease);
}

.page-faq .faq-card[open] .faq-card__arrow {
  transform: rotate(-135deg) translate(-3px, -3px);
}

.page-faq .faq-card__body {
  margin: 0 20px;
  padding: 16px 0 22px;
  border-top: 1px solid var(--line-soft);
  font-size: 15.5px;
  line-height: 1.76;
  color: rgba(244, 247, 242, 0.82);
}

.page-faq .faq-card__body p {
  margin: 0 0 13px;
  max-width: 34em;
}

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

.page-faq .faq-card__body a {
  color: var(--c-orange-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

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

.page-faq .faq-tail {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed rgba(244, 247, 242, 0.12);
  font-size: 14.5px;
  color: var(--c-muted);
}

/* ---------- 步骤条 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 4px;
}

.page-faq .faq-steps__item {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  padding-bottom: 8px;
}

.page-faq .faq-steps__item p {
  margin: 0 0 8px;
  max-width: 34em;
}

.page-faq .faq-steps__num {
  display: grid;
  place-items: center;
  height: 22px;
  border: 1px solid rgba(255, 106, 26, 0.45);
  border-radius: var(--r-s);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--c-orange);
}

.page-faq .faq-steps--sync .faq-steps__item {
  position: relative;
  padding-bottom: 16px;
}

.page-faq .faq-steps--sync .faq-steps__item::after {
  content: "";
  position: absolute;
  left: 10px;
  top: 26px;
  bottom: 4px;
  width: 1px;
  background: linear-gradient(180deg, rgba(255, 106, 26, 0.4), rgba(255, 106, 26, 0.04));
}

.page-faq .faq-steps--sync .faq-steps__item:last-child::after {
  display: none;
}

/* ---------- 入门路径分栏 ---------- */
.page-faq .faq-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  align-items: start;
}

/* ---------- 判断标准 ---------- */
.page-faq .faq-ruler {
  height: 16px;
  margin: 0 0 20px;
  border-bottom: 2px solid rgba(255, 106, 26, 0.6);
  background-image: repeating-linear-gradient(
    90deg,
    rgba(244, 247, 242, 0.24) 0 1px,
    transparent 1px 15px
  );
}

.page-faq .criterion-list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-faq .criterion {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
}

.page-faq .criterion__num {
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1.1;
  color: var(--c-lamp);
  border-bottom: 8px solid rgba(31, 122, 85, 0.32);
}

.page-faq .criterion__t {
  margin: 0 0 5px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 15.5px;
  letter-spacing: 0.01em;
  color: var(--c-white);
}

.page-faq .criterion p {
  margin: 0;
  max-width: 34em;
  font-size: 15px;
  color: rgba(244, 247, 242, 0.76);
}

/* ---------- 双端分工 ---------- */
.page-faq .device-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-bottom: 16px;
}

.page-faq .device-card {
  padding: 16px 18px 14px;
  background: rgba(5, 19, 15, 0.42);
  border-left: 8px solid var(--c-lamp);
  border-radius: 0 var(--r-s) var(--r-s) 0;
}

.page-faq .device-card__k {
  margin: 0 0 7px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  letter-spacing: 0.02em;
  color: var(--c-orange-soft);
}

.page-faq .device-card p {
  margin: 0;
  font-size: 14.8px;
  max-width: 34em;
}

/* ---------- 列表与图文 ---------- */
.page-faq .faq-list {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
}

.page-faq .faq-list li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 9px;
  max-width: 34em;
}

.page-faq .faq-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 10px;
  height: 2px;
  background: var(--c-orange);
}

.page-faq .faq-card__body .media {
  margin: 4px 0 0;
}

.page-faq .media__caption {
  font-size: 12.5px;
  letter-spacing: 0.02em;
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  }

  .page-faq .faq-layout {
    grid-template-columns: 268px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-card__head {
    padding: 20px 24px;
  }

  .page-faq .faq-card__body {
    margin: 0 24px;
    padding: 18px 0 26px;
  }

  .page-faq .device-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }
}

@media (min-width: 760px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: 26px;
  }
}

@media (max-width: 899px) {
  .page-faq .faq-index__inner {
    position: static;
    padding: 14px 16px;
    background: rgba(20, 81, 60, 0.5);
    border: 1px solid var(--line);
    border-radius: var(--r-m);
  }

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

@media (max-width: 480px) {
  .page-faq .faq-card__head {
    gap: 10px;
    padding: 15px 15px;
    align-items: start;
  }

  .page-faq .faq-card__body {
    margin: 0 15px;
    font-size: 15px;
  }

  .page-faq .faq-card__arrow {
    margin-top: 8px;
  }

  .page-faq .criterion {
    grid-template-columns: 28px minmax(0, 1fr);
    gap: 9px;
  }

  .page-faq .criterion__num {
    font-size: 17px;
  }

  .page-faq .faq-steps__item {
    grid-template-columns: 26px minmax(0, 1fr);
    gap: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-card,
  .page-faq .faq-card__arrow,
  .page-faq .faq-index__link {
    transition: none;
  }
}
<<<END>>>