.page-faq {
  --faq-hair: rgba(169, 182, 208, .16);
  --faq-hair-strong: rgba(61, 242, 210, .34);
  --faq-card: rgba(26, 43, 85, .42);
  background: var(--ink-900);
  color: var(--moon);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 5vw, 48px) 0 clamp(36px, 6vw, 76px);
  background:
    radial-gradient(90% 70% at 92% -12%, rgba(36, 26, 74, .92), rgba(36, 26, 74, 0) 62%),
    radial-gradient(80% 65% at -10% 0%, rgba(11, 23, 48, .95), rgba(6, 9, 18, 0) 68%),
    linear-gradient(180deg, var(--ink-800) 0%, var(--ink-900) 100%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(169, 182, 208, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(169, 182, 208, .07) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: radial-gradient(72% 62% at 62% 18%, #000 0%, transparent 76%);
  mask-image: radial-gradient(72% 62% at 62% 18%, #000 0%, transparent 76%);
}

.page-faq .faq-hero .wrap {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 32px;
  margin-top: clamp(20px, 4vw, 36px);
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.05rem, 8.4vw, 4.2rem);
  line-height: 1.06;
  letter-spacing: .012em;
  margin: 10px 0 16px;
  max-width: 15em;
}

.page-faq .faq-hero .section-lede {
  max-width: 34em;
  color: var(--haze);
  font-size: clamp(15px, 2.6vw, 17px);
  line-height: 1.8;
  margin: 0;
}

.page-faq .faq-hero__chips {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.page-faq .faq-chip {
  display: inline-block;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--faq-hair);
  background: rgba(11, 23, 48, .6);
  color: var(--moon);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .04em;
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  border-color: var(--faq-hair-strong);
  background: rgba(61, 242, 210, .1);
  color: var(--cyan);
  outline: none;
}

/* 热门问题 */
.page-faq .hot-questions {
  border-radius: var(--r-lg);
  border: 1px solid var(--faq-hair);
  background: linear-gradient(160deg, rgba(26, 43, 85, .7), rgba(6, 9, 18, .55));
  padding: 20px 18px;
}

.page-faq .hot-questions__title {
  margin: 0 0 14px;
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-faq .hot-questions__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .hot-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 14px;
  padding: 13px 14px;
  border-radius: var(--r-sm);
  border: 1px solid transparent;
  background: rgba(6, 9, 18, .4);
  color: var(--moon);
  text-decoration: none;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .hot-item:hover,
.page-faq .hot-item:focus-visible {
  transform: translateY(-3px);
  border-color: var(--faq-hair-strong);
  background: rgba(26, 43, 85, .7);
  outline: none;
}

.page-faq .hot-item__num {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--cyan);
  line-height: 1;
}

.page-faq .hot-item__text {
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--moon);
}

/* ---------- 主体布局 ---------- */
.page-faq .faq-body {
  padding-top: clamp(32px, 6vw, 64px);
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
}

/* 左侧分类轨道 */
.page-faq .faq-rail__title {
  margin: 0 0 12px;
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--haze);
}

.page-faq .faq-rail__list {
  list-style: none;
  margin: 0;
  padding: 0 0 8px;
  display: flex;
  gap: 9px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-rail__list li {
  flex: 0 0 auto;
}

.page-faq .faq-rail__link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 15px;
  border-radius: 999px;
  border: 1px solid var(--faq-hair);
  background: rgba(26, 43, 85, .4);
  color: var(--moon);
  font-size: 13.5px;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  border-color: var(--faq-hair-strong);
  color: var(--cyan);
  background: rgba(61, 242, 210, .08);
  outline: none;
}

.page-faq .faq-rail__count {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 700;
  color: var(--cyan);
  opacity: .85;
}

.page-faq .faq-rail__note {
  display: none;
  margin: 20px 0 0;
  padding: 14px 14px 14px 16px;
  border-left: 2px solid var(--faq-hair-strong);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--haze);
}

/* ---------- 问答组 ---------- */
.page-faq .faq-group {
  padding-bottom: clamp(30px, 5vw, 52px);
  margin-bottom: clamp(30px, 5vw, 52px);
  border-bottom: 1px solid var(--faq-hair);
  scroll-margin-top: 90px;
}

.page-faq .faq-group:last-child {
  border-bottom: 0;
  margin-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  column-gap: 12px;
  margin-bottom: 22px;
}

.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--amber);
  letter-spacing: .08em;
}

.page-faq .faq-group__head h2 {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.5rem, 5vw, 2.1rem);
  line-height: 1.25;
  margin: 0;
  color: var(--moon);
}

.page-faq .faq-group__desc {
  grid-column: 2;
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--haze);
  max-width: 40em;
}

/* ---------- 三步路径 ---------- */
.page-faq .path-block {
  margin: 0 0 24px;
  padding: clamp(20px, 4vw, 30px);
  border-radius: var(--r-lg);
  border: 1px solid var(--faq-hair);
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(36, 26, 74, .7), rgba(6, 9, 18, 0) 60%),
    linear-gradient(170deg, rgba(11, 23, 48, .95), rgba(6, 9, 18, .9));
}

.page-faq .path-block__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.15rem, 4vw, 1.55rem);
  line-height: 1.35;
  margin: 0 0 8px;
  color: var(--moon);
}

.page-faq .path-block__lede {
  margin: 0 0 20px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--haze);
  max-width: 38em;
}

.page-faq .faq-figure {
  margin: 0 0 22px;
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--faq-hair);
  background: var(--ink-800);
}

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

.page-faq .faq-figure--compact {
  margin: 22px 0 0;
}

.page-faq .path-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .path-step {
  padding: 16px 16px 18px;
  border-radius: var(--r-md);
  border: 1px solid var(--faq-hair);
  background: var(--faq-card);
}

.page-faq .path-step__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: .1em;
  margin-bottom: 8px;
}

.page-faq .path-step h4 {
  margin: 0 0 6px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  color: var(--moon);
}

.page-faq .path-step p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--haze);
}

.page-faq .path-example {
  margin-top: 20px;
  padding: 16px 18px;
  border-radius: var(--r-md);
  border: 1px dashed rgba(246, 185, 74, .45);
  background: rgba(246, 185, 74, .06);
}

.page-faq .path-example .plate {
  display: inline-block;
  margin-bottom: 8px;
}

.page-faq .path-example p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--moon);
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-acc {
  display: grid;
  gap: 10px;
}

.page-faq .faq-item {
  border-radius: var(--r-md);
  border: 1px solid var(--faq-hair);
  border-left: 3px solid var(--faq-hair);
  background: rgba(11, 23, 48, .55);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-item[open] {
  border-left-color: var(--cyan);
  background: rgba(26, 43, 85, .5);
}

.page-faq .faq-item[open] > summary {
  color: var(--moon);
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 16px 16px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--moon);
}

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

.page-faq .faq-item > summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
  border-radius: var(--r-md);
}

.page-faq .faq-q {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-arrow {
  flex: 0 0 auto;
  position: relative;
  width: 18px;
  height: 18px;
  margin-top: 2px;
  border-radius: 50%;
  border: 1px solid var(--faq-hair-strong);
  transition: transform var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-arrow::before,
.page-faq .faq-arrow::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--cyan);
  transform: translate(-50%, -50%);
}

.page-faq .faq-arrow::before {
  width: 8px;
  height: 1.5px;
}

.page-faq .faq-arrow::after {
  width: 1.5px;
  height: 8px;
  transition: opacity var(--dur) var(--ease);
}

.page-faq .faq-item[open] .faq-arrow {
  transform: rotate(180deg);
}

.page-faq .faq-item[open] .faq-arrow::after {
  opacity: 0;
}

.page-faq .faq-a {
  padding: 0 18px 18px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--haze);
}

.page-faq .faq-a p {
  margin: 0 0 10px;
}

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

.page-faq .faq-a__link a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(61, 242, 210, .4);
  padding-bottom: 1px;
}

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

.page-faq .faq-a__actions {
  margin-top: 14px;
}

.page-faq .faq-note {
  margin-top: 14px;
  padding: 13px 15px;
  border-radius: var(--r-sm);
  border: 1px solid rgba(246, 185, 74, .4);
  background: rgba(246, 185, 74, .08);
}

.page-faq .faq-note__label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .16em;
  color: var(--gold);
  margin-bottom: 6px;
}

.page-faq .faq-note p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--moon);
}

/* ---------- 底部引导 ---------- */
.page-faq .faq-cta {
  padding: 0 0 clamp(48px, 8vw, 88px);
}

.page-faq .faq-cta__box {
  display: grid;
  gap: 20px;
  padding: clamp(24px, 5vw, 40px);
  border-radius: var(--r-xl);
  border: 1px solid var(--faq-hair);
  background:
    radial-gradient(110% 120% at 100% 0%, rgba(61, 242, 210, .12), rgba(6, 9, 18, 0) 58%),
    linear-gradient(150deg, var(--ink-600), var(--ink-900));
}

.page-faq .faq-cta__box h2 {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.4rem, 5vw, 2rem);
  line-height: 1.3;
  margin: 0 0 10px;
  color: var(--moon);
}

.page-faq .faq-cta__box p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--haze);
  max-width: 40em;
}

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

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-faq .hot-questions {
    padding: 24px 22px;
  }

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

  .page-faq .path-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr);
    gap: 52px;
    align-items: end;
  }

  .page-faq .faq-layout {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 32px;
    align-self: start;
  }

  .page-faq .faq-rail__list {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
    gap: 6px;
  }

  .page-faq .faq-rail__list li {
    flex: 1 1 auto;
  }

  .page-faq .faq-rail__link {
    display: flex;
    justify-content: space-between;
    width: 100%;
    white-space: normal;
    padding: 11px 14px;
    border-radius: var(--r-sm);
    border-color: transparent;
    background: transparent;
  }

  .page-faq .faq-rail__link:hover,
  .page-faq .faq-rail__link:focus-visible {
    background: rgba(61, 242, 210, .08);
    border-color: var(--faq-hair-strong);
  }

  .page-faq .faq-item > summary {
    font-size: 16px;
    padding: 18px 20px 18px 22px;
  }

  .page-faq .faq-a {
    padding: 0 22px 20px;
  }

  .page-faq .faq-cta__box {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 32px;
  }

  .page-faq .faq-cta__actions {
    justify-content: flex-end;
    flex-wrap: nowrap;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .hot-item,
  .page-faq .faq-chip,
  .page-faq .faq-rail__link,
  .page-faq .faq-arrow,
  .page-faq .faq-item {
    transition: none;
  }

  .page-faq .hot-item:hover,
  .page-faq .hot-item:focus-visible {
    transform: none;
  }
}