.page-faq {
  --faq-panel: rgba(22, 35, 61, 0.66);
  --faq-panel-soft: rgba(11, 20, 36, 0.82);
  --faq-line: var(--hair);
  --faq-line-strong: rgba(53, 240, 208, 0.42);
  --faq-shadow: 0 26px 60px -40px rgba(6, 10, 18, 0.95);
  color: var(--silver);
  padding-bottom: clamp(48px, 7vw, 96px);
}

.page-faq .crumbs {
  padding-top: clamp(14px, 2.4vw, 24px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: clamp(20px, 3.4vw, 36px);
  margin-top: clamp(16px, 2.6vw, 28px);
  align-items: center;
}

.page-faq .faq-hero__copy h1 {
  margin: 10px 0 0;
  font-size: clamp(1.72rem, 5.2vw, 3rem);
  line-height: 1.18;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--silver);
}

.page-faq .faq-hero__copy .eyebrow {
  color: var(--cyan);
  letter-spacing: 0.16em;
}

.page-faq .faq-hero__copy .lede {
  margin-top: 14px;
  max-width: 46ch;
  font-size: clamp(0.95rem, 1.6vw, 1.06rem);
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .faq-jump__label {
  margin: 22px 0 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-jump a {
  display: inline-block;
  padding: 8px 15px;
  border: 1px solid var(--faq-line);
  border-radius: var(--r-pill);
  font-size: 0.84rem;
  color: var(--silver);
  text-decoration: none;
  background: rgba(22, 35, 61, 0.5);
  transition: border-color 0.3s var(--ease), color 0.3s var(--ease), background 0.3s var(--ease);
}

.page-faq .faq-jump a:hover,
.page-faq .faq-jump a:focus-visible {
  border-color: var(--faq-line-strong);
  color: var(--cyan);
  background: rgba(53, 240, 208, 0.08);
  outline: none;
}

.page-faq .faq-hero__visual {
  position: relative;
  margin: 0;
  border-radius: var(--r-xl);
  overflow: hidden;
  border: 1px solid var(--faq-line);
  box-shadow: var(--faq-shadow);
  background:
    radial-gradient(circle at 78% 12%, rgba(53, 240, 208, 0.22), transparent 58%),
    radial-gradient(circle at 12% 88%, rgba(255, 154, 77, 0.16), transparent 62%),
    var(--night);
}

.page-faq .faq-hero__visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(150deg, transparent 42%, rgba(6, 10, 18, 0.55) 100%);
  pointer-events: none;
}

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

/* ---------- 概览数字 ---------- */
.page-faq .faq-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: clamp(26px, 4vw, 44px);
}

.page-faq .faq-fact {
  padding: 16px 16px 14px;
  border: 1px solid var(--faq-line);
  border-radius: var(--r-md);
  background: linear-gradient(165deg, var(--faq-panel), var(--faq-panel-soft));
  border-left: 2px solid rgba(53, 240, 208, 0.55);
}

.page-faq .faq-fact .data-num {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3.4vw, 2rem);
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--cyan);
  line-height: 1;
}

.page-faq .faq-fact .data-unit {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--mist);
  margin-left: 4px;
}

.page-faq .faq-fact p {
  margin: 8px 0 0;
  font-size: 0.8rem;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 问答板 ---------- */
.page-faq .faq-board {
  margin-top: clamp(38px, 6vw, 70px);
}

.page-faq .faq-board__head h2 {
  margin: 0;
  font-size: clamp(1.34rem, 3.4vw, 1.95rem);
  line-height: 1.28;
  font-weight: 800;
  color: var(--silver);
}

.page-faq .faq-board__head p {
  margin: 10px 0 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(16px, 2.6vw, 28px);
  margin-top: clamp(18px, 3vw, 28px);
}

.page-faq .faq-index {
  min-width: 0;
}

.page-faq .faq-filter {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: thin;
}

.page-faq .faq-filter .filter-btn {
  flex: 0 0 auto;
  padding: 9px 16px;
  border: 1px solid var(--faq-line);
  border-radius: var(--r-pill);
  background: rgba(22, 35, 61, 0.55);
  color: var(--mist);
  font-family: var(--font-sans);
  font-size: 0.84rem;
  line-height: 1.2;
  white-space: nowrap;
  cursor: pointer;
  transition: color 0.28s var(--ease), border-color 0.28s var(--ease), background 0.28s var(--ease);
}

.page-faq .faq-filter .filter-btn:hover,
.page-faq .faq-filter .filter-btn:focus-visible {
  color: var(--silver);
  border-color: rgba(53, 240, 208, 0.35);
  outline: none;
}

.page-faq .faq-filter .filter-btn.is-active,
.page-faq .faq-filter .filter-btn[aria-pressed="true"] {
  color: var(--void);
  border-color: var(--cyan);
  background: var(--cyan);
  font-weight: 700;
  box-shadow: 0 0 0 3px rgba(53, 240, 208, 0.14);
}

.page-faq .faq-index__note {
  display: none;
  margin: 16px 0 0;
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-list {
  display: grid;
  gap: 10px;
  min-width: 0;
}

.page-faq .qa-card {
  border: 1px solid var(--faq-line);
  border-radius: var(--r-lg);
  background: linear-gradient(158deg, var(--faq-panel), var(--faq-panel-soft));
  box-shadow: var(--faq-shadow);
  overflow: hidden;
  scroll-margin-top: 96px;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease), transform 0.3s var(--ease);
}

.page-faq .qa-card:hover {
  border-color: rgba(53, 240, 208, 0.3);
  transform: translateY(-2px);
}

.page-faq .qa-card[open] {
  border-color: var(--faq-line-strong);
  box-shadow: 0 0 0 1px rgba(53, 240, 208, 0.1), var(--faq-shadow);
}

.page-faq .qa-card__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa-card__q:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -3px;
  border-radius: var(--r-lg);
}

.page-faq .qa-num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  color: var(--cyan);
  padding-top: 3px;
}

.page-faq .qa-text {
  flex: 1 1 auto;
  font-size: clamp(0.92rem, 1.7vw, 1rem);
  font-weight: 600;
  line-height: 1.6;
  color: var(--silver);
}

.page-faq .qa-mark {
  position: relative;
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  border-radius: var(--r-pill);
  border: 1px solid var(--faq-line);
  transition: transform 0.32s var(--ease), border-color 0.32s var(--ease);
}

.page-faq .qa-mark::before,
.page-faq .qa-mark::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--mist);
  transform: translate(-50%, -50%);
  transition: background 0.32s var(--ease);
}

.page-faq .qa-mark::before {
  width: 9px;
  height: 1.5px;
}

.page-faq .qa-mark::after {
  width: 1.5px;
  height: 9px;
}

.page-faq .qa-card[open] .qa-mark {
  transform: rotate(45deg);
  border-color: var(--cyan);
}

.page-faq .qa-card[open] .qa-mark::before,
.page-faq .qa-card[open] .qa-mark::after {
  background: var(--cyan);
}

.page-faq .qa-card__a {
  padding: 0 16px 18px 42px;
  background: linear-gradient(180deg, rgba(53, 240, 208, 0.07), rgba(53, 240, 208, 0) 70%);
}

.page-faq .qa-card__a p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.82;
  color: var(--mist);
}

.page-faq .qa-card__a a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 240, 208, 0.4);
}

.page-faq .qa-card__a a:hover,
.page-faq .qa-card__a a:focus-visible {
  color: var(--cyan-mist);
  border-bottom-color: var(--cyan-mist);
  outline: none;
}

.page-faq .filter-empty {
  margin: 4px 0 0;
  padding: 18px;
  border: 1px dashed var(--faq-line);
  border-radius: var(--r-lg);
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--mist);
  text-align: center;
}

/* ---------- 反馈流程 ---------- */
.page-faq .faq-flow {
  display: grid;
  gap: clamp(18px, 3vw, 32px);
  margin-top: clamp(38px, 6vw, 70px);
  padding: clamp(18px, 3.2vw, 34px);
  border: 1px solid var(--faq-line);
  border-radius: var(--r-xl);
  background:
    radial-gradient(circle at 88% 8%, rgba(255, 154, 77, 0.14), transparent 52%),
    radial-gradient(circle at 4% 92%, rgba(53, 240, 208, 0.14), transparent 58%),
    var(--night);
  align-items: center;
}

.page-faq .faq-flow__media {
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--faq-line);
  background: var(--nebula);
}

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

.page-faq .faq-flow__body h2 {
  margin: 0;
  font-size: clamp(1.24rem, 3.2vw, 1.72rem);
  line-height: 1.3;
  font-weight: 800;
  color: var(--silver);
}

.page-faq .faq-steps {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-faq .faq-steps li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-steps li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-faq .faq-steps p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-flow__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.page-faq .faq-flow__actions .btn {
  min-width: 132px;
  justify-content: center;
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .qa-card__q {
    padding: 18px 22px;
    gap: 16px;
  }

  .page-faq .qa-card__a {
    padding: 0 22px 20px 62px;
  }

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

@media (min-width: 980px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.04fr) minmax(0, 0.96fr);
  }

  .page-faq .faq-layout {
    grid-template-columns: 246px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 92px;
  }

  .page-faq .faq-filter {
    flex-direction: column;
    align-items: stretch;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-filter .filter-btn {
    width: 100%;
    text-align: left;
    padding: 11px 18px;
    font-size: 0.88rem;
  }

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

  .page-faq .qa-card__q {
    padding: 20px 26px;
  }

  .page-faq .qa-card__a {
    padding: 0 26px 22px 68px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa-card,
  .page-faq .qa-mark,
  .page-faq .faq-jump a,
  .page-faq .faq-filter .filter-btn {
    transition: none;
  }
}
<<<END>>>