.page-faq {
  --faq-gap: clamp(34px, 5.5vw, 64px);
  --faq-r: 18px;
  background:
    radial-gradient(1100px 520px at 88% -10%, rgba(53, 242, 192, 0.10), transparent 62%),
    radial-gradient(900px 480px at -8% 46%, rgba(255, 155, 74, 0.06), transparent 60%),
    var(--ink);
  color: var(--fog);
  padding-block: clamp(24px, 4vw, 48px) clamp(48px, 8vw, 104px);
  overflow-x: clip;
}

.page-faq .faq-body > * + * {
  margin-top: var(--faq-gap);
}

.page-faq :where(a, button, summary):focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  max-width: 62ch;
}

.page-faq .faq-hero .eyebrow {
  color: var(--mint);
  font-size: 12px;
  letter-spacing: 0.16em;
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  font-size: clamp(29px, 5.2vw, 56px);
  line-height: 1.12;
  letter-spacing: -0.03em;
  font-weight: 800;
  max-width: 18ch;
}

.page-faq .faq-hero .lede {
  margin: 18px 0 0;
  font-size: clamp(15.5px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--cool);
  max-width: 58ch;
}

.page-faq .faq-hero-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 18px;
  margin-top: 22px;
}

.page-faq .faq-hero-count {
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: var(--cool);
}

/* ---------- 通用章节标题 ---------- */
.page-faq .faq-sec-head h2 {
  margin: 10px 0 0;
  font-size: clamp(22px, 3.2vw, 36px);
  line-height: 1.24;
  letter-spacing: -0.02em;
  font-weight: 800;
}

.page-faq .faq-sec-head .eyebrow {
  color: var(--mint);
  font-size: 12px;
  letter-spacing: 0.14em;
}

.page-faq .faq-sec-lede {
  margin: 12px 0 0;
  color: var(--cool);
  font-size: 15.5px;
  line-height: 1.75;
  max-width: 62ch;
}

/* ---------- 五组主题卡片 ---------- */
.page-faq .faq-topics {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-faq .faq-topic {
  display: flex;
}

.page-faq .faq-topic-link {
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: 100%;
  padding: 16px 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: linear-gradient(158deg, rgba(26, 36, 48, 0.96), rgba(16, 22, 30, 0.96));
  color: inherit;
  text-decoration: none;
  transition: transform 0.22s var(--ease), border-color 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.page-faq .faq-topic-link:hover {
  transform: translateY(-2px);
  border-color: rgba(53, 242, 192, 0.55);
  box-shadow: 0 10px 22px -14px rgba(53, 242, 192, 0.7);
}

.page-faq .faq-topic-num {
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--mint);
}

.page-faq .faq-topic-name {
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--fog);
}

.page-faq .faq-topic-desc {
  font-size: 13px;
  line-height: 1.65;
  color: var(--cool);
}

.page-faq .faq-topic-state {
  align-self: flex-start;
  margin-top: 8px;
}

/* ---------- 总览配图 ---------- */
.page-faq .faq-board-figure,
.page-faq .faq-step-figure {
  margin: 26px 0 0;
  border: 1px solid var(--line);
  border-radius: var(--faq-r);
  overflow: hidden;
  background: var(--graph);
}

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

.page-faq .faq-board-figure .media-caption,
.page-faq .faq-step-figure .media-caption {
  display: block;
  padding: 12px 16px 14px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--cool);
  border-top: 1px solid var(--line);
}

/* ---------- 三列错位手风琴 ---------- */
.page-faq .faq-qa-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  margin-top: 26px;
}

.page-faq .faq-qa-col {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.page-faq .faq-col-title {
  margin: 0 0 12px;
  padding-left: 12px;
  border-left: 3px solid var(--orange);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--mint-soft);
  line-height: 1.6;
}

.page-faq .faq-q {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--graph);
  overflow: hidden;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-faq .faq-q + .faq-q {
  margin-top: 12px;
}

.page-faq .faq-q:hover {
  border-color: #3b5069;
}

.page-faq .faq-q[open] {
  border-color: rgba(53, 242, 192, 0.5);
  box-shadow: 0 0 0 1px rgba(53, 242, 192, 0.16);
}

.page-faq .faq-q-summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 10px;
  align-items: start;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.55;
  letter-spacing: -0.01em;
  color: var(--fog);
  transition: color 0.2s var(--ease);
}

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

.page-faq .faq-q[open] .faq-q-summary {
  color: var(--mint-soft);
}

.page-faq .faq-q-num {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cool);
  padding-top: 3px;
}

.page-faq .faq-q-icon {
  position: relative;
  width: 13px;
  height: 13px;
  margin-top: 4px;
  flex: none;
}

.page-faq .faq-q-icon::before,
.page-faq .faq-q-icon::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 2px;
  border-radius: 2px;
  background: var(--mint);
  transform: translateY(-50%);
  transition: transform 0.22s var(--ease);
}

.page-faq .faq-q-icon::after {
  transform: translateY(-50%) rotate(90deg);
}

.page-faq .faq-q[open] .faq-q-icon::after {
  transform: translateY(-50%) rotate(0deg);
}

.page-faq .faq-q-body {
  padding: 0 16px 16px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--cool);
  border-top: 1px solid rgba(43, 59, 78, 0.7);
  padding-top: 14px;
  margin-top: 2px;
}

.page-faq .faq-q-body p {
  margin: 0;
}

.page-faq .faq-q-body p + p {
  margin-top: 0.85em;
}

.page-faq .faq-q-body a {
  color: var(--mint);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-faq .faq-q-body a:hover {
  color: var(--mint-soft);
}

/* ---------- 版本与公告 ---------- */
.page-faq .faq-version-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-version-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 16px 4px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-version-key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--orange);
}

.page-faq .faq-version-text {
  font-size: 15px;
  line-height: 1.75;
  color: var(--cool);
}

/* ---------- 三步自查 ---------- */
.page-faq .faq-steps-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  margin-top: 26px;
  align-items: start;
}

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

.page-faq .faq-step {
  padding: 18px 18px 20px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--mint-deep);
  border-radius: var(--radius-md);
  background: linear-gradient(150deg, rgba(26, 36, 48, 0.94), rgba(16, 22, 30, 0.94));
}

.page-faq .faq-step:nth-child(2) {
  border-left-color: var(--mint);
}

.page-faq .faq-step:nth-child(3) {
  border-left-color: var(--orange);
}

.page-faq .faq-step-num {
  display: block;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--mint);
}

.page-faq .faq-step:nth-child(3) .faq-step-num {
  color: var(--orange);
}

.page-faq .faq-step h3 {
  margin: 8px 0 6px;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--fog);
}

.page-faq .faq-step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--cool);
}

.page-faq .faq-step-figure {
  margin: 0;
}

/* ---------- 人工通道 ---------- */
.page-faq .faq-contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  padding: clamp(20px, 3.4vw, 36px);
  border: 1px solid var(--line);
  border-radius: var(--faq-r);
  background:
    linear-gradient(152deg, rgba(14, 107, 87, 0.32), rgba(16, 22, 30, 0.96) 58%),
    var(--char);
}

.page-faq .faq-contact-copy .eyebrow {
  color: var(--mint);
  font-size: 12px;
  letter-spacing: 0.14em;
}

.page-faq .faq-contact-copy h2 {
  margin: 10px 0 0;
  font-size: clamp(21px, 3vw, 32px);
  line-height: 1.26;
  letter-spacing: -0.02em;
  font-weight: 800;
}

.page-faq .faq-contact-copy p {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.76;
  color: var(--cool);
  max-width: 52ch;
}

.page-faq .faq-contact-cards {
  display: grid;
  gap: 12px;
}

.page-faq .faq-contact-card {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 12px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(10, 19, 32, 0.66);
}

.page-faq .faq-contact-label {
  flex-basis: 100%;
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--cool);
}

.page-faq .faq-contact-value {
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.5;
  color: var(--fog);
  word-break: break-word;
}

.page-faq .faq-contact-note {
  flex-basis: 100%;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--cool);
}

.page-faq .faq-copy {
  margin-left: auto;
  padding: 5px 13px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--mint);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-faq .faq-copy:hover {
  background: rgba(53, 242, 192, 0.12);
  border-color: rgba(53, 242, 192, 0.55);
  color: var(--mint-soft);
}

/* ---------- 相关栏目 ---------- */
.page-faq .faq-more {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-more-link {
  display: inline-block;
  padding: 9px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  font-size: 13.5px;
  color: var(--fog);
  text-decoration: none;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-faq .faq-more-link:hover {
  border-color: rgba(53, 242, 192, 0.55);
  color: var(--mint-soft);
  transform: translateY(-2px);
}

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

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

  .page-faq .faq-contact-card:first-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-qa-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
    align-items: start;
  }

  .page-faq .faq-qa-col:nth-child(2) {
    margin-top: 34px;
  }

  .page-faq .faq-qa-col:nth-child(3) {
    margin-top: 68px;
  }

  .page-faq .faq-version-row {
    grid-template-columns: 150px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
    padding: 18px 4px;
  }

  .page-faq .faq-steps-layout {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 26px;
  }

  .page-faq .faq-step-figure {
    margin-top: 0;
  }

  .page-faq .faq-contact {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
    gap: 30px;
  }

  .page-faq .faq-contact-cards {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-faq .faq-contact-card:first-child {
    grid-column: auto;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-topics {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 14px;
  }

  .page-faq .faq-topic:nth-child(even) .faq-topic-link {
    margin-top: 22px;
  }

  .page-faq .faq-topic-link {
    padding: 18px 15px 20px;
  }

  .page-faq .faq-topic-num {
    font-size: 30px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-topic-link,
  .page-faq .faq-more-link,
  .page-faq .faq-copy,
  .page-faq .faq-q,
  .page-faq .faq-q-icon::before,
  .page-faq .faq-q-icon::after {
    transition: none;
  }

  .page-faq .faq-topic-link:hover,
  .page-faq .faq-more-link:hover {
    transform: none;
  }
}