.page-faq {
  --faq-text: #c9d4ea;
  --faq-gap: clamp(48px, 7vw, 96px);
}

.page-faq .faq-wrap {
  width: 100%;
  max-width: var(--content-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.page-faq .faq-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: clamp(20px, 3vw, 32px);
  font-size: 13px;
  color: var(--muted);
}

.page-faq .faq-crumb a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

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

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  display: grid;
  gap: clamp(18px, 3vw, 28px);
  padding-block: clamp(26px, 4.5vw, 56px) clamp(44px, 7vw, 88px);
}

.page-faq .faq-hero__eyebrow {
  margin: 0;
}

.page-faq .faq-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 6.6vw, 72px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 46em;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.78;
  color: var(--faq-text);
}

.page-faq .faq-index {
  list-style: none;
  margin: 0;
  padding: 0 0 0 clamp(16px, 2.4vw, 24px);
  border-left: 2px solid var(--cyan);
}

.page-faq .faq-index li {
  margin: 0;
}

.page-faq .faq-index a {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 12px;
  row-gap: 4px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  color: var(--white);
}

.page-faq .faq-index li:last-child a {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-index .no {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--cyan);
  padding-top: 4px;
}

.page-faq .faq-index .t {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.4;
  transition: color 180ms var(--ease);
}

.page-faq .faq-index .d {
  grid-column: 2;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

.page-faq .faq-index a:hover .t,
.page-faq .faq-index a:focus-visible .t {
  color: var(--cyan);
}

.page-faq .faq-index a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
}

/* ---------- 展开组 ---------- */

.page-faq .faq-groups {
  display: block;
}

.page-faq .faq-group {
  margin-bottom: clamp(16px, 2.4vw, 26px);
  border: 2px solid var(--line);
  background: var(--ink-800);
  box-shadow: var(--shadow-hard);
  transition: border-color 200ms var(--ease);
}

.page-faq .faq-group:has(.faq-group__btn[aria-expanded="true"]) {
  border-color: var(--line-cyan);
}

.page-faq .faq-group__head {
  margin: 0;
  font-weight: 400;
}

.page-faq .faq-group__btn {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  grid-template-areas:
    "no label icon"
    "no hint icon";
  align-items: center;
  column-gap: clamp(14px, 2vw, 22px);
  row-gap: 6px;
  width: 100%;
  padding: clamp(18px, 3vw, 30px) clamp(18px, 3vw, 32px);
  background: transparent;
  border: 0;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
  appearance: none;
  transition: background 200ms var(--ease);
}

.page-faq .faq-group__btn:hover {
  background: rgba(75, 224, 208, 0.05);
}

.page-faq .faq-group__btn:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -4px;
}

.page-faq .faq-group__no {
  grid-area: no;
  align-self: start;
  padding-top: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--muted);
  transition: color 200ms var(--ease);
}

.page-faq .faq-group__label {
  grid-area: label;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(19px, 2.6vw, 28px);
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-faq .faq-group__hint {
  grid-area: hint;
  font-size: 13px;
  line-height: 1.55;
  color: var(--muted);
}

.page-faq .faq-group__icon {
  grid-area: icon;
  position: relative;
  width: 18px;
  height: 18px;
  align-self: center;
}

.page-faq .faq-group__icon::before,
.page-faq .faq-group__icon::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform 220ms var(--ease), opacity 220ms var(--ease);
}

.page-faq .faq-group__icon::before {
  top: 8px;
  left: 0;
  width: 18px;
  height: 2px;
}

.page-faq .faq-group__icon::after {
  top: 0;
  left: 8px;
  width: 2px;
  height: 18px;
}

.page-faq .faq-group__btn[aria-expanded="true"] .faq-group__no {
  color: var(--cyan);
}

.page-faq .faq-group__btn[aria-expanded="true"] .faq-group__icon::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-group__panel {
  padding: clamp(22px, 3.4vw, 36px) clamp(18px, 3vw, 32px) clamp(26px, 4vw, 44px);
  border-top: 2px solid var(--line);
  animation: faq-panel-in 280ms var(--ease) both;
}

@keyframes faq-panel-in {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.page-faq .faq-panel__inner > p {
  max-width: 44em;
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--faq-text);
}

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

.page-faq .faq-sub {
  margin: 26px 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-faq .faq-panel__inner > p + .faq-sub:first-child,
.page-faq .faq-sub:first-child {
  margin-top: 0;
}

.page-faq .faq-split {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
}

.page-faq .faq-list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  max-width: 44em;
}

.page-faq .faq-list li {
  position: relative;
  margin-bottom: 12px;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--faq-text);
}

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

.page-faq .faq-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 8px;
  background: var(--cyan);
}

.page-faq .faq-list strong {
  color: var(--white);
  font-weight: 600;
}

.page-faq .faq-panel__inner .sk-state {
  margin-right: 10px;
}

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

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 2px solid var(--line);
  object-fit: cover;
  background: var(--ink-700);
}

.page-faq .faq-figure--wide {
  margin-bottom: 26px;
}

.page-faq .faq-split__main > p {
  max-width: 44em;
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--faq-text);
}

/* ---------- 切换前后对照 ---------- */

.page-faq .faq-panes {
  display: grid;
  gap: 16px;
  margin: 6px 0 22px;
}

.page-faq .faq-pane {
  padding: 16px 18px;
  border: 1px solid var(--line);
  background: rgba(6, 10, 28, 0.45);
}

.page-faq .faq-pane--now {
  border-color: var(--line-cyan);
  background: rgba(75, 224, 208, 0.06);
}

.page-faq .faq-pane__tag {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-faq .faq-pane p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--faq-text);
}

.page-faq .faq-callout {
  max-width: 44em;
  margin: 18px 0;
  padding: 12px 16px;
  border-left: 4px solid var(--amber);
  background: rgba(242, 160, 61, 0.08);
  font-size: 14px;
  line-height: 1.72;
  color: var(--white);
}

/* ---------- 三步排查 ---------- */

.page-faq .faq-steps {
  list-style: none;
  margin: 24px 0 22px;
  padding: 0;
  display: grid;
  gap: clamp(20px, 3vw, 26px);
}

.page-faq .faq-step__no {
  display: inline-block;
  margin-bottom: 12px;
  padding: 3px 9px;
  background: var(--cyan);
  color: var(--ink-950);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
}

.page-faq .faq-step__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 2.2vw, 23px);
  line-height: 1.25;
  color: var(--white);
}

.page-faq .faq-step > p:not(.faq-check) {
  margin: 0 0 14px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--faq-text);
}

.page-faq .faq-check {
  margin: 0;
  padding: 10px 12px;
  border: 2px solid var(--amber);
  background: rgba(242, 160, 61, 0.07);
  font-size: 13px;
  line-height: 1.65;
  color: var(--white);
}

.page-faq .faq-check span {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--amber);
}

/* ---------- 求助收尾 ---------- */

.page-faq .faq-help {
  margin-top: var(--faq-gap);
  padding: clamp(26px, 4.2vw, 52px);
  border: 2px solid rgba(75, 224, 208, 0.32);
  background:
    radial-gradient(circle at 88% 8%, rgba(75, 224, 208, 0.16), transparent 58%),
    var(--teal);
  box-shadow: var(--shadow-hard-lg);
}

.page-faq .faq-help__title {
  margin: 0 0 clamp(18px, 2.6vw, 28px);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 3.6vw, 42px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-faq .faq-help__grid {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
}

.page-faq .faq-help__lead {
  margin: 0 0 22px;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--faq-text);
}

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

.page-faq .faq-help__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-help__list li {
  position: relative;
  margin-bottom: 14px;
  padding-left: 22px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--faq-text);
}

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

.page-faq .faq-help__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 9px;
  height: 9px;
  border: 2px solid var(--amber);
}

.page-faq .faq-help__list strong {
  display: block;
  margin-bottom: 2px;
  color: var(--white);
  font-weight: 600;
}

.page-faq .faq-help__meta {
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding-top: 18px;
  border-top: 1px solid rgba(234, 240, 255, 0.18);
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 响应式 ---------- */

@media (min-width: 760px) {
  .page-faq .faq-panes {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 24px;
  }
}

@media (min-width: 820px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 340px);
    align-items: start;
  }

  .page-faq .faq-help__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: start;
  }
}

@media (min-width: 860px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
  }

  .page-faq .faq-step {
    padding: 0 clamp(16px, 2.2vw, 28px);
    border-left: 2px dashed var(--line-cyan);
  }

  .page-faq .faq-step:first-child {
    padding-left: 0;
    border-left: 0;
  }

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

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    grid-template-rows: auto auto auto;
    column-gap: clamp(32px, 6vw, 96px);
    align-items: start;
  }

  .page-faq .faq-hero__eyebrow {
    grid-column: 1;
    grid-row: 1;
  }

  .page-faq .faq-hero__title {
    grid-column: 1;
    grid-row: 2;
  }

  .page-faq .faq-hero__lead {
    grid-column: 1;
    grid-row: 3;
    margin-top: 4px;
  }

  .page-faq .faq-index {
    grid-column: 2;
    grid-row: 1 / 4;
    align-self: end;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-group__panel {
    animation: none;
  }

  .page-faq .faq-group__icon::before,
  .page-faq .faq-group__icon::after,
  .page-faq .faq-group__btn,
  .page-faq .faq-group__no,
  .page-faq .faq-index .t {
    transition: none;
  }
}
<<<END>>>