.page-faq {
  --faq-line: rgba(232, 241, 255, 0.12);
  --faq-line-strong: rgba(232, 241, 255, 0.26);
  --faq-index-w: 214px;
  --faq-panel: linear-gradient(180deg, rgba(16, 26, 61, 0.78), rgba(7, 11, 31, 0.94));
  padding: clamp(18px, 2.6vw, 34px) 0 clamp(56px, 7vw, 92px);
}

.page-faq .breadcrumbs {
  margin-bottom: clamp(16px, 2.4vw, 26px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 4vw, 46px) clamp(20px, 3.4vw, 46px);
  border: 1px solid var(--c-edge);
  border-radius: var(--radius);
  background:
    radial-gradient(120% 140% at 88% -12%, rgba(123, 91, 255, 0.30), transparent 58%),
    radial-gradient(90% 120% at 2% 112%, rgba(53, 242, 225, 0.18), transparent 62%),
    linear-gradient(160deg, #101a3d 0%, #070b1f 74%);
  box-shadow: var(--shadow-1);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -16%;
  top: -50%;
  width: 56%;
  height: 200%;
  pointer-events: none;
  background: radial-gradient(closest-side, rgba(53, 242, 225, 0.20), transparent 72%);
  animation: faq-drift 26s ease-in-out infinite alternate;
}

@keyframes faq-drift {
  from { transform: rotate(18deg) translate3d(0, 0, 0); opacity: 0.6; }
  to   { transform: rotate(23deg) translate3d(-7%, 5%, 0); opacity: 1; }
}

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

.page-faq .faq-hero h1 {
  margin: 0.4em 0 0;
  max-width: 20ch;
  font-size: clamp(34px, 5.6vw, 64px);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.015em;
  color: var(--c-glass);
}

.page-faq .faq-hero h1 em {
  font-style: normal;
  background: linear-gradient(100deg, var(--c-cyan) 8%, var(--c-violet) 92%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-faq .faq-hero .lede {
  margin: clamp(16px, 2vw, 22px) 0 0;
  max-width: 62ch;
  font-size: clamp(15.5px, 1.5vw, 17px);
  line-height: 1.8;
  color: rgba(232, 241, 255, 0.84);
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 30px;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: clamp(16px, 2vw, 22px) 0 0;
  list-style: none;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 14px;
  color: var(--c-mist);
}

.page-faq .faq-hero__facts .mono {
  font-size: clamp(22px, 2.6vw, 28px);
  font-weight: 700;
  color: var(--c-cyan);
}

/* ---------- 双栏骨架 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: clamp(18px, 3vw, 38px);
  margin-top: clamp(26px, 4vw, 50px);
}

.page-faq .faq-index {
  padding: 16px 14px;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-sm);
  background: linear-gradient(180deg, rgba(232, 241, 255, 0.06), rgba(232, 241, 255, 0.015));
}

.page-faq .faq-index__title {
  margin: 0 0 10px;
  font-size: 12.5px;
  letter-spacing: 0.16em;
  color: var(--c-mist);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-faq .faq-index__list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 13px;
  border-radius: 10px;
  border-left: 2px solid transparent;
  color: var(--c-mist);
  font-size: 14.5px;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-index__link .mono {
  font-size: 11.5px;
  color: var(--c-violet);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--c-glass);
  background: rgba(53, 242, 225, 0.09);
  border-left-color: var(--c-cyan);
}

/* ---------- 内容块 ---------- */
.page-faq .faq-block {
  scroll-margin-top: 104px;
  padding: clamp(20px, 3vw, 34px);
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  background: var(--faq-panel);
}

.page-faq .faq-block + .faq-block {
  margin-top: clamp(16px, 2.4vw, 26px);
}

.page-faq .faq-block__head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(18px, 2.4vw, 26px);
}

.page-faq .faq-block__num {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 11.5px;
  letter-spacing: 0.2em;
  color: var(--c-cyan);
}

.page-faq .faq-block__num::after {
  content: "";
  flex: 1 1 auto;
  height: 1px;
  background: linear-gradient(90deg, rgba(53, 242, 225, 0.45), transparent);
}

.page-faq .faq-block__title {
  margin: 0;
  font-size: clamp(22px, 2.7vw, 31px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--c-glass);
}

.page-faq .faq-block__intro {
  margin: 0;
  max-width: 66ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--c-mist);
}

.page-faq .faq-subtitle {
  margin: clamp(20px, 2.4vw, 28px) 0 12px;
  font-size: 16px;
  font-weight: 700;
  color: var(--c-glass);
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 0 0 clamp(18px, 2.4vw, 24px);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

/* ---------- 步骤卡 ---------- */
.page-faq .steps {
  display: grid;
  gap: 12px;
}

.page-faq .step {
  overflow: hidden;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-sm);
  background: rgba(232, 241, 255, 0.035);
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.page-faq .step[open] {
  border-color: rgba(53, 242, 225, 0.34);
  box-shadow: 0 0 0 1px rgba(53, 242, 225, 0.12), 0 18px 42px rgba(4, 7, 22, 0.5);
}

.page-faq .step__head {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .step__num {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  font-size: 12.5px;
  font-weight: 700;
  color: #061024;
  background: linear-gradient(140deg, var(--c-cyan), var(--c-violet));
}

.page-faq .step__label {
  flex: 1 1 auto;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--c-glass);
}

.page-faq .step__head::after {
  content: "";
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  margin-left: 6px;
  border-right: 2px solid var(--c-mist);
  border-bottom: 2px solid var(--c-mist);
  transform: rotate(45deg);
  transition: transform 0.25s var(--ease);
}

.page-faq .step[open] .step__head::after {
  transform: rotate(-135deg);
  border-color: var(--c-cyan);
}

.page-faq .step__body {
  padding: 0 16px 16px 16px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-mist);
}

.page-faq .step__body p {
  margin: 0 0 8px;
}

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

.page-faq .step__tip {
  padding-left: 12px;
  border-left: 2px solid var(--c-orange);
  color: rgba(232, 241, 255, 0.88);
  font-size: 14px;
}

/* ---------- 栏目切换卡 ---------- */
.page-faq .chip-row {
  margin-bottom: 16px;
}

.page-faq .switch-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}

.page-faq .switch-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-sm);
  background: linear-gradient(160deg, rgba(123, 91, 255, 0.12), rgba(232, 241, 255, 0.02));
  transition: transform 0.22s var(--ease), border-color 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.page-faq .switch-card:hover {
  transform: translateY(-3px);
  border-color: rgba(53, 242, 225, 0.42);
  box-shadow: var(--glow-cyan);
}

.page-faq .switch-card__title {
  margin: 0;
  font-size: 16.5px;
  font-weight: 700;
  color: var(--c-glass);
}

.page-faq .switch-card__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--c-mist);
}

.page-faq .switch-card__meta {
  margin: 2px 0 0;
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--c-cyan);
}

/* ---------- 列表 ---------- */
.page-faq .prep-list {
  counter-reset: prep;
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .prep-list li {
  position: relative;
  padding-left: 44px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-mist);
}

.page-faq .prep-list li::before {
  counter-increment: prep;
  content: counter(prep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  padding: 3px 7px;
  border: 1px solid rgba(123, 91, 255, 0.45);
  border-radius: 7px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.2;
  color: var(--c-violet);
}

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

.page-faq .check-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-mist);
}

.page-faq .check-list .dot {
  flex: 0 0 auto;
  margin-top: 9px;
}

.page-faq .check-list--wide {
  margin-bottom: clamp(18px, 2.4vw, 24px);
}

/* ---------- 补充说明 ---------- */
.page-faq .compat-note {
  display: grid;
  gap: 10px;
  padding: 16px 18px;
  border: 1px dashed var(--faq-line-strong);
  border-radius: var(--radius-sm);
  background: rgba(53, 242, 225, 0.05);
}

.page-faq .compat-note--single {
  margin: clamp(18px, 2.4vw, 24px) 0 0;
}

.page-faq .compat-note p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--c-mist);
}

.page-faq .faq-cta {
  margin: clamp(20px, 2.6vw, 28px) 0 0;
}

/* ---------- 自助查询卡 ---------- */
.page-faq .self-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}

.page-faq .self-card {
  padding: 16px 18px;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-sm);
  background: rgba(232, 241, 255, 0.04);
}

.page-faq .self-card h3 {
  margin: 0 0 6px;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--c-cyan);
}

.page-faq .self-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-mist);
}

/* ---------- 行内链接 ---------- */
.page-faq .inline-link {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 242, 225, 0.42);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .inline-link:hover,
.page-faq .inline-link:focus-visible {
  color: var(--c-glass);
  border-bottom-color: var(--c-glass);
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 640px) {
  .page-faq .switch-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .self-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 100px;
  }

  .page-faq .faq-index__list {
    display: block;
    overflow: visible;
  }

  .page-faq .faq-index__item + .faq-index__item {
    margin-top: 4px;
  }

  .page-faq .faq-index__link {
    white-space: normal;
    line-height: 1.45;
  }

  .page-faq .step__body {
    padding: 0 20px 18px 20px;
  }

  .page-faq .step__head {
    padding: 17px 20px;
  }
}

@media (min-width: 1180px) {
  .page-faq .switch-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

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

  .page-faq .switch-card,
  .page-faq .step,
  .page-faq .step__head::after {
    transition: none;
  }

  .page-faq .switch-card:hover {
    transform: none;
  }
}