.page-faq {
  --faq-rule: rgba(213, 220, 228, 0.16);
  --faq-cyan-soft: rgba(34, 227, 214, 0.10);
  --faq-orange-soft: rgba(255, 122, 26, 0.10);
  background: var(--ink);
  color: var(--silver);
  font-family: var(--font-body);
  line-height: 1.75;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(28px, 5vw, 56px) 0 clamp(40px, 6.5vw, 76px);
  background:
    radial-gradient(90% 120% at 100% 0%, rgba(34, 227, 214, 0.16) 0%, rgba(34, 227, 214, 0) 58%),
    radial-gradient(85% 110% at 0% 100%, rgba(255, 122, 26, 0.13) 0%, rgba(255, 122, 26, 0) 60%),
    var(--ink);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero__contours {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  fill: none;
  stroke: var(--cyan);
  stroke-width: 1;
  opacity: 0.16;
  pointer-events: none;
}

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

.page-faq .breadcrumbs {
  margin: 0 0 26px;
}

.page-faq .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-faq .breadcrumbs li + li::before {
  content: "/";
  margin-right: 6px;
  color: var(--steel);
}

.page-faq .breadcrumbs a {
  color: var(--mist);
  text-decoration: none;
  transition: color var(--t-fast) var(--ease);
}

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

.page-faq .faq-hero__inner {
  display: grid;
  gap: 26px;
}

.page-faq .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-faq .eyebrow::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--cyan);
}

.page-faq .faq-hero h1 {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(29px, 6.4vw, 56px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--white);
  max-width: 15em;
}

.page-faq .lede {
  margin: 0;
  max-width: 62ch;
  font-size: 16.5px;
  line-height: 1.8;
  color: var(--silver);
}

.page-faq .faq-hero__note {
  display: grid;
  gap: 8px;
  padding-left: 16px;
  border-left: 2px solid var(--orange);
}

.page-faq .faq-hero__note .mono {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--orange);
}

.page-faq .faq-hero__note .muted {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 主题卡片 ---------- */
.page-faq .faq-themes {
  display: grid;
  gap: 12px;
  margin-top: clamp(30px, 5vw, 46px);
}

.page-faq .faq-theme {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 18px 20px;
  background: var(--graphite);
  border: 1px solid var(--line);
  border-top: 2px solid var(--steel);
  color: inherit;
  text-decoration: none;
  transition: border-color var(--t-base) var(--ease), background var(--t-base) var(--ease), transform var(--t-base) var(--ease);
}

.page-faq .faq-theme:hover,
.page-faq .faq-theme:focus-visible {
  border-top-color: var(--orange);
  background: var(--steel);
  transform: translateY(-2px);
  outline: none;
}

.page-faq .faq-theme:focus-visible {
  box-shadow: 0 0 0 2px var(--orange);
}

.page-faq .faq-theme__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-faq .faq-theme__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.3;
  color: var(--white);
}

.page-faq .faq-theme__desc {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 主体布局 ---------- */
.page-faq .faq-body {
  padding: clamp(34px, 5.5vw, 66px) 0 clamp(48px, 7vw, 90px);
}

.page-faq .faq-layout {
  display: grid;
  gap: 30px;
}

.page-faq .faq-index {
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.page-faq .faq-index__label {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--mist);
}

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

.page-faq .faq-index__link {
  display: block;
  padding: 9px 14px;
  border: 1px solid var(--steel);
  color: var(--mist);
  font-size: 14px;
  line-height: 1.4;
  text-decoration: none;
  transition: color var(--t-base) var(--ease), border-color var(--t-base) var(--ease), background var(--t-base) var(--ease);
}

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

.page-faq .faq-index__link[aria-current="true"] {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
  font-weight: 700;
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  padding: 32px 0 8px;
  border-top: 1px solid var(--line);
  scroll-margin-top: 24px;
}

.page-faq .faq-group:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .faq-group__head {
  margin-bottom: 22px;
}

.page-faq .faq-group__num {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-faq .faq-group__head h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 3.8vw, 32px);
  line-height: 1.24;
  letter-spacing: -0.005em;
  color: var(--white);
}

.page-faq .faq-verdict {
  margin: 0;
  padding-left: 14px;
  border-left: 2px solid var(--cyan);
  font-size: 16.5px;
  line-height: 1.7;
  color: var(--cyan);
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-item {
  margin-bottom: 10px;
  background: var(--graphite);
  border: 1px solid var(--line);
  transition: border-color var(--t-base) var(--ease);
}

.page-faq .faq-item[open] {
  border-color: var(--cyan-line);
}

.page-faq .faq-item summary {
  position: relative;
  display: block;
  padding: 16px 48px 16px 20px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16.5px;
  line-height: 1.55;
  color: var(--white);
  cursor: pointer;
  list-style: none;
  transition: color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}

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

.page-faq .faq-item summary::after {
  content: "";
  position: absolute;
  right: 22px;
  top: 50%;
  width: 9px;
  height: 9px;
  margin-top: -7px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(45deg);
  transition: transform var(--t-base) var(--ease), border-color var(--t-base) var(--ease);
}

.page-faq .faq-item[open] summary::after {
  transform: rotate(-135deg);
  margin-top: -2px;
  border-color: var(--orange);
}

.page-faq .faq-item summary:hover,
.page-faq .faq-item summary:focus-visible {
  color: var(--cyan);
  background: rgba(28, 38, 55, 0.55);
  outline: none;
}

.page-faq .faq-item summary:focus-visible {
  box-shadow: inset 0 0 0 2px var(--orange);
}

.page-faq .faq-item__body {
  position: relative;
  padding: 16px 20px 22px 40px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-item__body::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 16px;
  bottom: 22px;
  width: 1px;
  background: linear-gradient(var(--cyan-line), rgba(34, 227, 214, 0));
}

/* ---------- 步骤 ---------- */
.page-faq .faq-steps {
  counter-reset: faq-step;
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
}

.page-faq .faq-steps li {
  counter-increment: faq-step;
  position: relative;
  padding: 8px 10px 8px 46px;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--silver);
  transition: background var(--t-fast) var(--ease);
}

.page-faq .faq-steps li::before {
  content: counter(faq-step, decimal-leading-zero);
  position: absolute;
  left: 10px;
  top: 9px;
  padding: 1px 5px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--cyan);
  border: 1px solid var(--cyan-line);
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-faq .faq-steps li:hover {
  background: var(--faq-cyan-soft);
}

.page-faq .faq-steps li:hover::before {
  color: var(--orange);
  border-color: var(--orange-line);
}

.page-faq .faq-steps a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-line);
}

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

/* ---------- 栏目对照 ---------- */
.page-faq .faq-map {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-map li {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
  align-items: baseline;
  padding: 12px 14px;
  background: var(--graphite);
}

.page-faq .faq-map__k {
  flex: 0 0 auto;
  min-width: 100px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--orange);
}

.page-faq .faq-map__v {
  flex: 1 1 220px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--silver);
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 26px 0 30px;
  background: var(--graphite);
  border: 1px solid var(--line);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
  filter: saturate(0.82) contrast(1.05);
}

.page-faq .faq-figure .media-frame__caption {
  padding: 12px 16px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

/* ---------- 联系方式 ---------- */
.page-faq .faq-contact {
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-contact li {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 18px;
  align-items: baseline;
  padding: 14px 16px;
  background: var(--graphite);
}

.page-faq .faq-contact__key {
  flex: 0 0 auto;
  min-width: 86px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-faq .faq-contact__val {
  flex: 1 1 200px;
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--white);
  word-break: break-word;
}

.page-faq .faq-help-lead {
  margin: 0 0 12px;
  font-size: 16px;
  color: var(--silver);
}

.page-faq .faq-help-foot {
  margin: 22px 0 0;
  padding: 16px 18px;
  background: var(--faq-orange-soft);
  border-left: 2px solid var(--orange);
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--silver);
}

.page-faq .faq-help-foot a {
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid var(--orange-line);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-themes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-contact li,
  .page-faq .faq-map li {
    flex-wrap: nowrap;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.55fr) minmax(240px, 0.75fr);
    align-items: end;
    gap: 48px;
  }

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

@media (min-width: 1040px) {
  .page-faq .faq-layout {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 24px;
    border-top: 1px solid var(--line-strong);
    padding-top: 20px;
  }

  .page-faq .faq-index ol {
    display: block;
  }

  .page-faq .faq-index ol li + li {
    margin-top: 2px;
  }

  .page-faq .faq-index__link {
    padding: 10px 0 10px 14px;
    border: 0;
    border-left: 2px solid var(--steel);
    background: none;
  }

  .page-faq .faq-index__link[aria-current="true"] {
    color: var(--cyan);
    background: none;
    border-left-color: var(--cyan);
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    color: var(--cyan);
    border-left-color: var(--cyan-line);
  }

  .page-faq .faq-themes {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-theme,
  .page-faq .faq-item,
  .page-faq .faq-item summary,
  .page-faq .faq-item summary::after,
  .page-faq .faq-steps li,
  .page-faq .faq-steps li::before {
    transition: none;
  }

  .page-faq .faq-theme:hover {
    transform: none;
  }
}