.page-faq {
  --faq-rail: 232px;
  --faq-hair: rgba(55, 224, 216, 0.32);
  --faq-tint: rgba(55, 224, 216, 0.1);
  background: var(--ink-900);
  color: var(--text-primary);
}

.page-faq .crumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
}

.page-faq .crumbs li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--ink-700);
}

.page-faq .crumbs a {
  color: var(--text-secondary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 200ms var(--ease), border-color 200ms var(--ease);
}

.page-faq .crumbs a:hover,
.page-faq .crumbs a:focus-visible {
  color: var(--cyan-400);
  border-bottom-color: var(--cyan-400);
}

.page-faq .crumbs [aria-current="page"] {
  color: var(--cyan-400);
}

/* ---------- 首屏检索台 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(24px, 5vw, 56px) 0 clamp(56px, 9vw, 112px);
  background:
    radial-gradient(circle at 88% 12%, rgba(55, 224, 216, 0.12), transparent 46%),
    radial-gradient(circle at 4% 88%, rgba(242, 196, 107, 0.08), transparent 42%),
    linear-gradient(180deg, var(--ink-950) 0%, var(--ink-900) 100%);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(32px, 5vw, 64px);
  align-items: end;
  margin-top: clamp(28px, 5vw, 64px);
}

.page-faq .faq-hero__intro .eyebrow {
  margin-bottom: 14px;
}

.page-faq .faq-hero h1 {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 6.4vw, 66px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  max-width: 15ch;
}

.page-faq .faq-hero .lead {
  max-width: 54ch;
  font-size: clamp(15px, 1.2vw, 17px);
  color: var(--text-secondary);
  line-height: 1.9;
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 32px;
  margin: 30px 0 0;
  padding: 22px 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-faq .faq-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-faq .faq-hero__num {
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 700;
  color: var(--gold-400);
  letter-spacing: 0.02em;
}

.page-faq .faq-hero__label {
  font-size: 13px;
  color: var(--text-secondary);
}

.page-faq .faq-search {
  margin-top: 30px;
  max-width: 560px;
}

.page-faq .faq-search__box {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 6px 6px 18px;
  border: 1px solid var(--ink-700);
  border-radius: var(--radius-pill);
  background: rgba(13, 44, 66, 0.72);
  transition: border-color 240ms var(--ease), box-shadow 240ms var(--ease);
}

.page-faq .faq-search__box:focus-within {
  border-color: var(--cyan-400);
  box-shadow: 0 0 0 3px rgba(55, 224, 216, 0.16);
}

.page-faq .faq-search__box input {
  flex: 1 1 auto;
  min-width: 0;
  padding: 10px 0;
  border: 0;
  background: transparent;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 15px;
  outline: none;
}

.page-faq .faq-search__box input::placeholder {
  color: rgba(159, 182, 196, 0.7);
}

.page-faq .faq-search__badge {
  flex: none;
  padding: 7px 12px;
  border-radius: var(--radius-pill);
  background: var(--faq-tint);
  color: var(--cyan-400);
  font-size: 11px;
  letter-spacing: 0.12em;
}

.page-faq .faq-search__note {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-secondary);
}

.page-faq .faq-hero__figure {
  margin: 0;
  aspect-ratio: 3 / 2;
  border: 1px solid var(--ink-700);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

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

.page-faq .faq-hero__figure .media-frame__caption {
  font-size: 12px;
  color: var(--text-secondary);
}

/* ---------- 主题分组 + 条目列表 ---------- */
.page-faq .faq-body__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
}

.page-faq .faq-groups__title {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--text-secondary);
}

.page-faq .faq-groups__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-groups__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 11px 14px;
  border: 1px solid var(--ink-700);
  border-radius: var(--radius-pill);
  color: var(--text-secondary);
  font-size: 14px;
  text-decoration: none;
  transition: background 240ms var(--ease), color 240ms var(--ease), border-color 240ms var(--ease);
}

.page-faq .faq-groups__link .mono {
  font-size: 11px;
  color: rgba(159, 182, 196, 0.75);
}

.page-faq .faq-groups__link:hover,
.page-faq .faq-groups__link:focus-visible {
  border-color: var(--cyan-400);
  color: var(--text-primary);
}

.page-faq .faq-groups__link.is-active {
  background: var(--faq-tint);
  border-color: var(--faq-hair);
  color: var(--cyan-400);
}

.page-faq .faq-groups__link.is-active .mono {
  color: var(--cyan-400);
}

.page-faq .faq-groups__note {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--text-secondary);
}

.page-faq .faq-list__intro {
  margin: 0 0 32px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-secondary);
}

.page-faq .faq-group {
  margin-bottom: clamp(36px, 5vw, 56px);
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-group__head .num {
  font-size: 22px;
  font-weight: 700;
  color: var(--gold-400);
  letter-spacing: 0.04em;
}

.page-faq .faq-group__head h2 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: clamp(19px, 2vw, 24px);
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-faq .faq-group__count {
  font-size: 12px;
  color: var(--text-secondary);
  white-space: nowrap;
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-item > summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 12px;
  padding: 16px 6px 16px 0;
  list-style: none;
  cursor: pointer;
  transition: background 240ms var(--ease), padding-left 240ms var(--ease);
}

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

.page-faq .faq-item > summary:hover,
.page-faq .faq-item > summary:focus-visible {
  background: rgba(55, 224, 216, 0.06);
  padding-left: 8px;
}

.page-faq .faq-item__code {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan-400);
  white-space: nowrap;
}

.page-faq .faq-item__q {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-primary);
}

.page-faq .faq-item__arrow {
  position: relative;
  align-self: center;
  width: 22px;
  height: 22px;
  flex: none;
  border: 1px solid var(--ink-700);
  border-radius: 50%;
  transition: border-color 240ms var(--ease);
}

.page-faq .faq-item__arrow::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 7px;
  height: 7px;
  margin: -5px 0 0 -4px;
  border-right: 1.5px solid var(--cyan-400);
  border-bottom: 1.5px solid var(--cyan-400);
  transform: rotate(45deg);
  transition: transform 240ms var(--ease);
}

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

.page-faq .faq-item[open] > summary .faq-item__arrow::before {
  transform: rotate(225deg);
  margin: -1px 0 0 -4px;
}

.page-faq .faq-item__a {
  position: relative;
  margin: 0 0 20px 6px;
  padding: 4px 6px 4px 20px;
  border-left: 1px solid var(--faq-hair);
  font-size: 14px;
  line-height: 1.85;
  color: var(--text-secondary);
}

.page-faq .faq-item[open] .faq-item__a {
  animation: faqFade 240ms var(--ease) both;
}

@keyframes faqFade {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-faq .faq-item__a ol {
  margin: 0;
  padding-left: 1.2em;
}

.page-faq .faq-item__a li + li {
  margin-top: 6px;
}

.page-faq .faq-item__a a {
  color: var(--cyan-400);
  text-decoration: none;
  border-bottom: 1px solid rgba(55, 224, 216, 0.4);
}

.page-faq .faq-item__a a:hover,
.page-faq .faq-item__a a:focus-visible {
  border-bottom-color: var(--cyan-400);
}

/* ---------- 记录查询专区 ---------- */
.page-faq .faq-record {
  background: linear-gradient(160deg, var(--ink-800) 0%, var(--ink-900) 78%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-record__head h2 {
  margin: 14px 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.4vw, 40px);
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.page-faq .faq-record__lead {
  margin: 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-secondary);
}

.page-faq .faq-record__steps {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: clamp(32px, 5vw, 52px) 0 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-faq .faq-record__step {
  padding: 26px 22px 28px;
  background: var(--ink-900);
}

.page-faq .faq-record__no {
  display: block;
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--gold-400);
}

.page-faq .faq-record__step h3 {
  margin: 12px 0 10px;
  font-family: var(--font-heading);
  font-size: 17px;
  font-weight: 700;
}

.page-faq .faq-record__step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--text-secondary);
}

.page-faq .faq-record__step a {
  color: var(--cyan-400);
  text-decoration: none;
  border-bottom: 1px solid rgba(55, 224, 216, 0.4);
}

.page-faq .faq-record__tip {
  margin: 24px 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--coral-500);
  font-size: 13px;
  line-height: 1.8;
  color: var(--text-secondary);
}

/* ---------- 版本说明（浅色反相） ---------- */
.page-faq .faq-version {
  color: var(--ink-950);
}

.page-faq .faq-version .eyebrow {
  color: var(--ink-700);
}

.page-faq .faq-version__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}

.page-faq .faq-version__figure {
  margin: 0;
  aspect-ratio: 10 / 7;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(5, 19, 31, 0.14);
}

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

.page-faq .faq-version__figure .media-frame__caption {
  font-size: 12px;
  color: rgba(5, 19, 31, 0.66);
}

.page-faq .faq-version__main h2 {
  margin: 14px 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 3vw, 36px);
  line-height: 1.22;
  color: var(--ink-950);
}

.page-faq .faq-version__lead {
  margin: 0 0 26px;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(5, 19, 31, 0.76);
}

.page-faq .faq-version__scroll {
  overflow-x: auto;
  border: 1px solid rgba(5, 19, 31, 0.16);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.55);
}

.page-faq .faq-version__table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  font-size: 13px;
  line-height: 1.7;
}

.page-faq .faq-version__table th,
.page-faq .faq-version__table td {
  padding: 14px 16px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid rgba(5, 19, 31, 0.1);
  color: var(--ink-950);
}

.page-faq .faq-version__table thead th {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--ink-700);
  background: rgba(5, 19, 31, 0.06);
  border-bottom: 1px solid rgba(5, 19, 31, 0.18);
}

.page-faq .faq-version__table tbody th {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  white-space: nowrap;
  color: var(--ink-700);
}

.page-faq .faq-version__table tbody tr:nth-child(odd) {
  background: rgba(5, 19, 31, 0.035);
}

.page-faq .faq-version__table tbody tr.is-current {
  background: rgba(55, 224, 216, 0.16);
}

.page-faq .faq-version__table tbody tr.is-current th {
  color: var(--ink-950);
  box-shadow: inset 3px 0 0 var(--cyan-400);
}

.page-faq .faq-version__table tbody tr:last-child th,
.page-faq .faq-version__table tbody tr:last-child td {
  border-bottom: 0;
}

.page-faq .faq-version__foot {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: rgba(5, 19, 31, 0.7);
}

/* ---------- 转人工 ---------- */
.page-faq .faq-help {
  background: linear-gradient(180deg, var(--ink-900) 0%, var(--ink-950) 100%);
}

.page-faq .faq-help__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}

.page-faq .faq-help h2 {
  margin: 14px 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.4vw, 40px);
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.page-faq .faq-help__main p {
  margin: 0;
  max-width: 54ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-secondary);
}

.page-faq .faq-help__points {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-faq .faq-help__points li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-secondary);
}

.page-faq .faq-help__dot {
  flex: none;
  width: 7px;
  height: 7px;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--mint-500);
}

.page-faq .faq-help__panel {
  padding: 26px 24px 28px;
  border: 1px solid var(--ink-700);
  border-radius: var(--radius-lg);
  background: rgba(13, 44, 66, 0.7);
}

.page-faq .faq-help__label {
  margin: 0 0 18px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--gold-400);
}

.page-faq .faq-help__contact {
  margin: 0 0 24px;
}

.page-faq .faq-help__contact dt {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
}

.page-faq .faq-help__contact dd {
  margin: 4px 0 16px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--text-primary);
  word-break: break-word;
}

.page-faq .faq-help__contact dd:last-child {
  margin-bottom: 0;
}

.page-faq .faq-help__contact a {
  color: var(--cyan-400);
  text-decoration: none;
  border-bottom: 1px solid rgba(55, 224, 216, 0.4);
}

.page-faq .faq-help__contact a:hover,
.page-faq .faq-help__contact a:focus-visible {
  border-bottom-color: var(--cyan-400);
}

.page-faq .faq-help__panel .btn {
  display: inline-block;
  width: 100%;
  text-align: center;
}

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

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

  .page-faq .faq-help__panel .btn {
    width: auto;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  }

  .page-faq .faq-body__grid {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    gap: clamp(32px, 4vw, 64px);
  }

  .page-faq .faq-groups {
    position: sticky;
    top: 96px;
    align-self: start;
  }

  .page-faq .faq-groups__list {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
  }

  .page-faq .faq-groups__link {
    border-radius: var(--radius-md);
    border-color: transparent;
    border-left: 2px solid transparent;
    padding: 10px 12px;
  }

  .page-faq .faq-groups__link:hover,
  .page-faq .faq-groups__link:focus-visible {
    border-color: transparent;
    border-left-color: var(--faq-hair);
    background: rgba(55, 224, 216, 0.05);
  }

  .page-faq .faq-groups__link.is-active {
    border-color: transparent;
    border-left-color: var(--cyan-400);
  }

  .page-faq .faq-version__grid {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  }

  .page-faq .faq-help__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: clamp(40px, 6vw, 88px);
  }

  .page-faq .faq-item__a {
    margin-left: 0;
    padding-left: 76px;
  }

  .page-faq .faq-item > summary {
    padding-right: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item[open] .faq-item__a {
    animation: none;
  }

  .page-faq .faq-item > summary,
  .page-faq .faq-item__arrow,
  .page-faq .faq-item__arrow::before,
  .page-faq .faq-groups__link {
    transition: none;
  }
}