.page-faq {
  --faq-panel: #102A22;
  --faq-panel-open: #143128;
  --faq-line-soft: rgba(59, 240, 196, 0.35);
  padding-bottom: 80px;
  color: var(--paper);
}

.page-faq .faq-hero {
  padding: 26px 0 0;
}

.page-faq .faq-hero .page-title {
  margin: 10px 0 14px;
  max-width: 22em;
}

.page-faq .faq-hero .lede {
  max-width: 44em;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-hero-media {
  margin: 26px 0 0;
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  overflow: hidden;
}

.page-faq .faq-hero-media img,
.page-faq .qa-split-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* 快捷跳转条 */
.page-faq .faq-jump {
  position: sticky;
  top: calc(var(--topbar-h) + 6px);
  z-index: 8;
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 28px 0 40px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: rgba(10, 28, 22, 0.94);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  overflow-x: auto;
  scrollbar-width: none;
}

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

.page-faq .faq-jump-label {
  flex: 0 0 auto;
  margin: 0;
  padding-right: 12px;
  border-right: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-faq .faq-jump-list {
  display: flex;
  flex: 0 0 auto;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .jump-chip {
  display: inline-block;
  flex: 0 0 auto;
  padding: 7px 14px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  font-size: 13px;
  line-height: 1.4;
  color: var(--muted);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.18s var(--ease), background-color 0.18s var(--ease),
    border-color 0.18s var(--ease);
}

.page-faq .jump-chip:hover,
.page-faq .jump-chip:focus-visible {
  color: var(--ink);
  background: var(--mint);
  border-color: var(--mint);
}

/* 章节 */
.page-faq .faq-section {
  margin-bottom: 52px;
  scroll-margin-top: calc(var(--topbar-h) + 96px);
}

.page-faq .faq-section-head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding-bottom: 14px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-section-num {
  flex: 0 0 auto;
  padding-top: 5px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-faq .faq-section-title {
  margin: 0;
  font-size: clamp(20px, 2.6vw, 26px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.page-faq .faq-section-desc {
  margin: 8px 0 0;
  max-width: 40em;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

/* 步骤 */
.page-faq .step-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .step {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--faq-panel);
  transition: border-color 0.18s var(--ease), transform 0.18s var(--ease),
    box-shadow 0.18s var(--ease);
}

.page-faq .step:hover,
.page-faq .step:focus-within {
  border-color: var(--faq-line-soft);
  transform: translateY(-2px);
  box-shadow: 0 0 0 1px rgba(59, 240, 196, 0.1), 0 12px 28px rgba(0, 0, 0, 0.3);
}

.page-faq .step-index {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--tick);
  border-radius: var(--r-pill);
  background: rgba(59, 240, 196, 0.07);
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--cyan);
}

.page-faq .step-title {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
}

.page-faq .step-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: #cbdcd5;
}

.page-faq .step-check {
  display: inline-block;
  margin: 8px 0 0;
  padding: 3px 10px;
  border-radius: var(--r-pill);
  background: rgba(185, 247, 230, 0.1);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--mint);
}

/* 问答手风琴 */
.page-faq .qa-group {
  display: grid;
  gap: 10px;
}

.page-faq .qa-split {
  display: grid;
  gap: 20px;
}

.page-faq .qa-split-media {
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
}

.page-faq .qa {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--faq-panel);
  overflow: hidden;
  transition: background-color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .qa::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 3px;
  background: var(--cyan);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.22s var(--ease);
}

.page-faq .qa[open] {
  background: var(--faq-panel-open);
  border-color: var(--faq-line-soft);
}

.page-faq .qa[open]::before {
  transform: scaleY(1);
}

.page-faq .qa-q {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 15px 46px 15px 18px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--paper);
  list-style: none;
  cursor: pointer;
}

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

.page-faq .qa-q::after {
  content: "+";
  position: absolute;
  top: 13px;
  right: 14px;
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border: 1px solid var(--tick);
  border-radius: var(--r-pill);
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--cyan);
  transition: background-color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .qa[open] .qa-q::after {
  content: "−";
  background: rgba(59, 240, 196, 0.16);
  border-color: var(--faq-line-soft);
}

.page-faq .qa-num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--cyan);
  opacity: 0.85;
}

.page-faq .qa-a {
  padding: 0 18px 18px 18px;
}

.page-faq .qa-a p {
  margin: 0 0 10px;
  font-size: 14.5px;
  line-height: 1.8;
  color: #cbdcd5;
}

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

.page-faq .qa-go {
  display: inline-block;
  margin-top: 2px;
  padding-bottom: 1px;
  border-bottom: 1px solid rgba(59, 240, 196, 0.35);
  font-size: 13px;
  color: var(--cyan);
  text-decoration: none;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-faq .qa-go::after {
  content: " ↗";
  font-family: var(--font-mono);
}

.page-faq .qa-go:hover,
.page-faq .qa-go:focus-visible {
  color: var(--mint);
  border-bottom-color: var(--mint);
}

/* 联系区块 */
.page-faq .help-contact {
  display: grid;
  gap: 18px;
  padding: 22px 18px;
  border: 1px solid rgba(255, 122, 51, 0.42);
  border-radius: var(--r-xl);
  background: linear-gradient(155deg, #16332a 0%, #0d221b 68%);
}

.page-faq .help-contact-lead {
  margin: 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.8;
  color: #d7e6e0;
}

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

.page-faq .faq-contact-row {
  display: grid;
  grid-template-columns: 80px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 11px 0;
  border-top: 1px solid var(--line);
}

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

.page-faq .faq-contact-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-faq .faq-contact-value {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .faq-contact-value.num {
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

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

@media (min-width: 760px) {
  .page-faq .step {
    grid-template-columns: 42px minmax(0, 1fr);
    gap: 16px;
    padding: 18px 20px 20px;
  }

  .page-faq .step-index {
    width: 42px;
    height: 42px;
  }

  .page-faq .qa-q {
    padding: 16px 52px 16px 22px;
    font-size: 15.5px;
  }

  .page-faq .qa-a {
    padding: 0 22px 20px 22px;
  }

  .page-faq .help-contact {
    padding: 28px;
  }

  .page-faq .faq-contact-row {
    grid-template-columns: 96px minmax(0, 1fr);
  }
}

@media (min-width: 900px) {
  .page-faq .faq-jump {
    top: 14px;
  }

  .page-faq .qa-split {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 26px;
    align-items: start;
  }

  .page-faq .qa-split-media {
    position: sticky;
    top: 84px;
  }
}