.page-faq {
  --faq-soft: #3D4D53;
  --faq-row: #F1F6F8;
  --faq-anchor: 92px;
  background: var(--paper);
  color: var(--ink);
  padding-bottom: 0;
}

/* ---------- 框景首屏 ---------- */
.page-faq .faq-hero {
  padding: 18px 0 0;
}

.page-faq .faq-frame {
  position: relative;
  padding: 34px 22px 34px;
  background: linear-gradient(140deg, #182A32 0%, #0B1418 72%);
  color: var(--paper);
  border-left: 3px solid var(--lake);
  overflow: hidden;
  clip-path: polygon(0 0, calc(100% - 34px) 0, 100% 34px, 100% 100%, 0 100%);
}

.page-faq .faq-frame::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 9px;
  background-image: repeating-linear-gradient(to right, rgba(201, 162, 39, 0.6) 0 1px, transparent 1px 22px);
  pointer-events: none;
}

.page-faq .faq-frame__label {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--lake-bright);
}

.page-faq .faq-frame__title {
  margin: 0 0 16px;
  font-size: 30px;
  line-height: 1.22;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--paper);
  max-width: 18ch;
}

.page-faq .faq-frame__lead {
  margin: 0;
  font-size: 16px;
  line-height: 1.78;
  color: rgba(247, 246, 243, 0.76);
  max-width: 62ch;
}

.page-faq .faq-frame__meta {
  list-style: none;
  margin: 26px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid rgba(79, 163, 190, 0.26);
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-faq .faq-frame__meta li {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-faq .faq-frame__meta .mono {
  font-size: 20px;
  font-weight: 500;
  color: var(--gold);
}

.page-faq .faq-frame__meta li span:last-child {
  font-size: 13px;
  color: rgba(247, 246, 243, 0.6);
}

/* ---------- 三步速查条 ---------- */
.page-faq .faq-quick {
  margin-top: 22px;
  padding: 22px 18px 20px;
  background: var(--lake-pale);
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 0 100%);
}

.page-faq .faq-quick__label {
  margin: 0 0 14px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #12414F;
}

.page-faq .faq-quick__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-faq .faq-quick__item a {
  display: block;
  height: 100%;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.82);
  border-left: 3px solid transparent;
  color: var(--ink);
  text-decoration: none;
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
  transition: background 0.24s var(--ease), border-color 0.24s var(--ease);
}

.page-faq .faq-quick__item a:hover,
.page-faq .faq-quick__item a:focus-visible {
  background: #FFFFFF;
  border-left-color: var(--lake);
}

.page-faq .faq-quick__num {
  display: block;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ochre);
  margin-bottom: 6px;
}

.page-faq .faq-quick__text {
  display: block;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.55;
  margin-bottom: 6px;
}

.page-faq .faq-quick__hint {
  display: block;
  font-size: 13px;
  line-height: 1.6;
  color: var(--faq-soft);
}

/* ---------- 首屏示意图 ---------- */
.page-faq .faq-hero__shot {
  margin: 22px 0 0;
}

.page-faq .faq-hero__shot img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
}

/* ---------- 主体骨架 ---------- */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  padding: 42px 0 0;
}

.page-faq .faq-rail__label {
  margin: 0 0 12px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--ink);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-faq .faq-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
}

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

.page-faq .faq-rail__list a {
  display: flex;
  gap: 8px;
  align-items: baseline;
  padding: 9px 12px;
  border: 1px solid var(--line);
  color: var(--ink);
  text-decoration: none;
  font-size: 14px;
  white-space: nowrap;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-rail__list .mono {
  font-size: 11px;
  color: var(--lake);
}

.page-faq .faq-rail__list a:hover,
.page-faq .faq-rail__list a:focus-visible {
  color: var(--lake);
  border-color: var(--lake);
}

/* ---------- 主题模块 ---------- */
.page-faq .faq-topic {
  margin-bottom: 46px;
  scroll-margin-top: var(--faq-anchor);
}

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

.page-faq .faq-topic__label {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--ochre);
}

.page-faq .faq-topic__title {
  margin: 0 0 12px;
  font-size: 24px;
  line-height: 1.3;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-faq .faq-topic__lead {
  margin: 0 0 20px;
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--faq-soft);
}

/* ---------- 可展开步骤组 ---------- */
.page-faq .faq-steps {
  border-top: 1px solid var(--line);
}

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

.page-faq .faq-steps .accordion__trigger {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 16px 2px 16px 0;
  margin: 0;
  background: none;
  border: 0;
  text-align: left;
  font: inherit;
  color: var(--ink);
  cursor: pointer;
}

.page-faq .faq-steps .accordion__trigger:focus-visible {
  outline: 2px solid var(--lake);
  outline-offset: 2px;
}

.page-faq .faq-steps .accordion__index {
  display: inline-block;
  padding: 3px 7px;
  font-size: 12px;
  background: var(--lake-pale);
  color: var(--lake);
  transition: background 0.25s var(--ease), color 0.25s var(--ease);
}

.page-faq .faq-steps .accordion__trigger[aria-expanded="true"] .accordion__index {
  background: var(--lake);
  color: #FFFFFF;
}

.page-faq .faq-steps .accordion__body {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
}

.page-faq .faq-steps .accordion__mark {
  position: relative;
  width: 16px;
  height: 16px;
  flex: 0 0 16px;
}

.page-faq .faq-steps .accordion__mark::before,
.page-faq .faq-steps .accordion__mark::after {
  content: "";
  position: absolute;
  background: var(--lake);
  transition: transform 0.25s var(--ease), opacity 0.25s var(--ease);
}

.page-faq .faq-steps .accordion__mark::before {
  left: 0;
  right: 0;
  top: 7px;
  height: 2px;
}

.page-faq .faq-steps .accordion__mark::after {
  top: 0;
  bottom: 0;
  left: 7px;
  width: 2px;
}

.page-faq .faq-steps .accordion__trigger[aria-expanded="true"] .accordion__mark::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-steps .accordion__panel {
  padding: 0 0 22px 0;
}

.page-faq .faq-steps .accordion__panel[hidden] {
  display: none !important;
}

.page-faq .faq-steps .accordion__panel p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--faq-soft);
}

.page-faq .faq-steps .accordion__panel ul {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
}

.page-faq .faq-steps .accordion__panel li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 8px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--faq-soft);
}

.page-faq .faq-steps .accordion__panel li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 10px;
  width: 7px;
  height: 7px;
  background: var(--ochre);
  transform: rotate(45deg);
}

.page-faq .faq-confirm {
  display: block;
  margin: 14px 0 0;
  padding: 11px 14px;
  background: var(--faq-row);
  border-left: 3px solid var(--lake);
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
}

.page-faq .faq-steps .accordion__panel .faq-confirm {
  color: var(--ink);
}

.page-faq .faq-confirm__k {
  display: inline-block;
  margin-right: 8px;
  padding: 1px 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--lake);
  background: rgba(79, 163, 190, 0.16);
}

/* ---------- 索引结构图 ---------- */
.page-faq .faq-diagram {
  margin: 0 0 24px;
}

.page-faq .faq-diagram img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 0 100%);
}

/* ---------- 索引卡片 ---------- */
.page-faq .faq-index-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-bottom: 34px;
}

.page-faq .faq-index-card {
  display: block;
  padding: 16px 18px;
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-left: 3px solid var(--lake);
  color: var(--ink);
  text-decoration: none;
  transition: background 0.24s var(--ease), transform 0.24s var(--ease);
}

.page-faq .faq-index-card:hover,
.page-faq .faq-index-card:focus-visible {
  background: var(--lake-pale);
  transform: translateX(3px);
}

.page-faq .faq-index-card__num {
  display: block;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ochre);
  margin-bottom: 6px;
}

.page-faq .faq-index-card__title {
  display: block;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
}

.page-faq .faq-index-card__desc {
  display: block;
  font-size: 13px;
  line-height: 1.65;
  color: var(--faq-soft);
}

/* ---------- 术语对照 ---------- */
.page-faq .faq-glossary {
  overflow-x: auto;
  border-top: 3px solid var(--ink);
}

.page-faq .faq-glossary__caption {
  padding: 12px 0 10px;
  text-align: left;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-faq .faq-glossary table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
}

.page-faq .faq-glossary th,
.page-faq .faq-glossary td {
  text-align: left;
  padding: 12px 12px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  line-height: 1.68;
  font-size: 15px;
}

.page-faq .faq-glossary th {
  font-size: 12px;
  letter-spacing: 0.1em;
  font-weight: 600;
  color: var(--muted);
  white-space: nowrap;
}

.page-faq .faq-glossary td:first-child {
  width: 26%;
  font-weight: 600;
  color: var(--ink);
}

.page-faq .faq-glossary td:last-child {
  color: var(--faq-soft);
}

.page-faq .faq-glossary tbody tr:nth-child(even) {
  background: var(--faq-row);
}

/* ---------- 收束区 ---------- */
.page-faq .faq-outro {
  margin: 8px 0 46px;
  padding: 26px 20px 28px;
  background: linear-gradient(150deg, #16252B 0%, #0B1418 80%);
  color: var(--paper);
  border-left: 3px solid var(--gold);
  clip-path: polygon(0 0, calc(100% - 30px) 0, 100% 30px, 100% 100%, 0 100%);
}

.page-faq .faq-outro__k {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--gold);
}

.page-faq .faq-outro__title {
  margin: 0 0 12px;
  font-size: 21px;
  line-height: 1.42;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper);
  max-width: 34ch;
}

.page-faq .faq-outro__text {
  margin: 0 0 20px;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(247, 246, 243, 0.74);
  max-width: 66ch;
}

.page-faq .faq-outro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-frame {
    padding: 44px 40px 40px;
  }

  .page-faq .faq-frame__title {
    font-size: 40px;
  }

  .page-faq .faq-frame__meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-faq .faq-quick {
    padding: 26px 26px 24px;
  }

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

  .page-faq .faq-index-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-outro {
    padding: 34px 34px 36px;
  }

  .page-faq .faq-outro__title {
    font-size: 26px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-shell {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 48px;
    padding-top: 54px;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--bar-h) + 22px);
    align-self: start;
  }

  .page-faq .faq-rail__list {
    display: block;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-rail__list li {
    flex: none;
  }

  .page-faq .faq-rail__list a {
    display: flex;
    padding: 12px 8px 12px 0;
    border: 0;
    border-bottom: 1px dashed var(--line);
    font-size: 15px;
    white-space: normal;
    transition: color 0.2s var(--ease), padding-left 0.2s var(--ease);
  }

  .page-faq .faq-rail__list a:hover,
  .page-faq .faq-rail__list a:focus-visible {
    padding-left: 6px;
  }

  .page-faq .faq-topic__title {
    font-size: 28px;
  }

  .page-faq .faq-frame__title {
    font-size: 52px;
    max-width: 20ch;
  }

  .page-faq .faq-topic {
    margin-bottom: 56px;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-shell {
    grid-template-columns: 258px minmax(0, 1fr);
    gap: 60px;
  }

  .page-faq .faq-frame {
    padding: 54px 52px 48px;
  }

  .page-faq .faq-frame__title {
    font-size: 60px;
  }

  .page-faq .faq-frame__lead {
    font-size: 17px;
  }
}

@media (max-width: 359px) {
  .page-faq .faq-frame {
    padding: 26px 16px 28px;
    clip-path: none;
  }

  .page-faq .faq-frame__title {
    font-size: 25px;
  }

  .page-faq .faq-frame__meta .mono {
    font-size: 18px;
  }

  .page-faq .faq-quick {
    padding: 18px 14px 16px;
    clip-path: none;
  }

  .page-faq .faq-topic__title {
    font-size: 21px;
  }

  .page-faq .faq-steps .accordion__trigger {
    padding: 14px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-quick__item a,
  .page-faq .faq-index-card,
  .page-faq .faq-rail__list a,
  .page-faq .faq-steps .accordion__mark::before,
  .page-faq .faq-steps .accordion__mark::after,
  .page-faq .faq-steps .accordion__index {
    transition: none;
  }

  .page-faq .faq-index-card:hover,
  .page-faq .faq-index-card:focus-visible {
    transform: none;
  }
}