.page-faq {
  --faq-ink-soft: #d8e0ea;
  --faq-body-light: #344054;
  --faq-line-light: rgba(16, 24, 40, .14);
  background: var(--ink-950);
  color: var(--faq-ink-soft);
  padding-bottom: clamp(48px, 8vw, 104px);
  overflow-x: clip;
}

.page-faq .faq-crumbs { margin: 0; padding-top: clamp(16px, 3vw, 28px); }
.page-faq .faq-crumbs ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  font-size: .82rem;
}

/* ---------- 页头 ---------- */
.page-faq .faq-head {
  padding-top: clamp(18px, 3.5vw, 34px);
  border-bottom: 1px solid var(--line);
  padding-bottom: clamp(22px, 4vw, 38px);
}
.page-faq .faq-title {
  margin: 10px 0 0;
  font-weight: 900;
  font-size: clamp(1.9rem, 5.4vw, 3.5rem);
  line-height: 1.14;
  letter-spacing: -.02em;
  color: #ffffff;
  max-width: 24ch;
}
.page-faq .faq-lede {
  margin: 18px 0 0;
  max-width: 68ch;
  font-size: clamp(.98rem, 1.5vw, 1.08rem);
  line-height: 1.8;
  color: var(--faq-ink-soft);
}
.page-faq .faq-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}
.page-faq .faq-stats li {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 12px 18px;
  border-radius: var(--r-md);
  background: var(--ink-800);
  border: 1px solid var(--line);
  min-width: 118px;
}
.page-faq .faq-stats .num {
  font-family: var(--font-num);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--lime-400);
  letter-spacing: -.01em;
}
.page-faq .faq-stats span:last-child {
  font-size: .78rem;
  color: var(--slate-300);
  letter-spacing: .01em;
}

/* ---------- 索引轴 ---------- */
.page-faq .faq-index {
  margin-top: clamp(26px, 4.5vw, 52px);
  padding: clamp(20px, 3.4vw, 34px);
  background: var(--ink-800);
}
.page-faq .faq-index-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 22px;
}
.page-faq .faq-index-head .section-title { color: #ffffff; margin: 0; }
.page-faq .faq-index-head .col-note { margin: 0; }

.page-faq .faq-rail {
  display: flex;
  gap: 6px;
  margin-top: 16px;
  padding: 4px 2px 12px;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}
.page-faq .faq-letter {
  flex: 0 0 auto;
  scroll-snap-align: start;
  width: 40px;
  height: 40px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--faq-ink-soft);
  font-family: var(--font-num);
  font-size: .88rem;
  font-weight: 700;
  cursor: pointer;
  transition: background var(--dur) ease, color var(--dur) ease,
              border-color var(--dur) ease, transform var(--dur) ease;
}
.page-faq .faq-letter:hover { background: rgba(43, 210, 255, .14); color: var(--electric-500); border-color: var(--electric-500); }
.page-faq .faq-letter:focus-visible { outline: 2px solid var(--electric-500); outline-offset: 2px; }
.page-faq .faq-letter[aria-pressed="true"] {
  background: var(--lime-400);
  border-color: var(--lime-400);
  color: var(--ink-950);
  transform: translateY(-1px);
}

.page-faq .faq-search {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  margin-top: 6px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}
.page-faq .faq-search .index-label { flex: 0 0 auto; }
.page-faq .faq-search .index-input {
  flex: 1 1 220px;
  min-width: 0;
  background: var(--ink-950);
  border: 1px solid var(--line-strong);
  color: #ffffff;
  border-radius: var(--r-pill);
  padding: 10px 18px;
  font-family: var(--font-num);
  font-size: .92rem;
}
.page-faq .faq-search .index-input:focus { outline: 2px solid var(--lime-400); outline-offset: 1px; }
.page-faq .faq-search .index-hint {
  flex: 1 1 100%;
  margin: 0;
  font-size: .84rem;
  color: var(--orange-500);
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-group { margin-top: clamp(34px, 6vw, 72px); }
.page-faq .faq-split { display: grid; grid-template-columns: 1fr; gap: 6px; }
.page-faq .faq-group-head {
  border-top: 2px solid var(--line-strong);
  padding-top: 14px;
}
.page-faq .faq-group-head .section-title { margin: 0; color: #ffffff; }
.page-faq .faq-group-note {
  margin: 8px 0 0;
  font-size: .84rem;
  line-height: 1.7;
  color: var(--slate-300);
}
.page-faq .faq-list { margin-top: 16px; display: grid; gap: 12px; }

.page-faq .qa {
  border-radius: var(--r-lg);
  background: var(--ink-800);
  border: 1px solid var(--line);
  overflow: hidden;
  transition: border-color var(--dur) ease, background var(--dur) ease;
}
.page-faq .qa:hover { border-color: var(--line-strong); }
.page-faq .qa[open] { background: #0f1730; border-color: rgba(182, 240, 74, .45); }
.page-faq .qa.is-filtered { display: none; }

.page-faq .qa-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin: 0;
  padding: 16px 20px;
  cursor: pointer;
  list-style: none;
  font-size: clamp(.96rem, 1.5vw, 1.04rem);
  font-weight: 700;
  line-height: 1.55;
  color: #ffffff;
}
.page-faq .qa-q::-webkit-details-marker { display: none; }
.page-faq .qa-q:focus-visible { outline: 2px solid var(--electric-500); outline-offset: -2px; }

.page-faq .qa-mark {
  position: relative;
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
}
.page-faq .qa-mark::before,
.page-faq .qa-mark::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--lime-400);
  transform: translate(-50%, -50%);
}
.page-faq .qa-mark::before { width: 11px; height: 2px; }
.page-faq .qa-mark::after { width: 2px; height: 11px; transition: transform var(--dur) ease, opacity var(--dur) ease; }
.page-faq .qa[open] .qa-mark { border-color: var(--lime-400); }
.page-faq .qa[open] .qa-mark::after { transform: translate(-50%, -50%) scaleY(0); opacity: 0; }

.page-faq .qa-a {
  padding: 0 20px 20px;
  font-size: .94rem;
  line-height: 1.8;
  color: var(--faq-ink-soft);
}
.page-faq .qa-a > p { margin: 0 0 10px; }
.page-faq .qa-a > p:last-child { margin-bottom: 0; }
.page-faq .qa-a ol,
.page-faq .qa-a ul {
  margin: 10px 0 0;
  padding-left: 1.15rem;
  display: grid;
  gap: 8px;
}
.page-faq .qa-a li { color: var(--faq-ink-soft); }
.page-faq .qa-a strong { color: var(--lime-400); font-weight: 700; }

.page-faq .faq-figure { margin: 4px 0 0; }
.page-faq .faq-figure img { display: block; width: 100%; height: auto; object-fit: cover; }

/* ---------- 浅色分组 ---------- */
.page-faq .faq-group--paper {
  background: var(--paper-50);
  color: var(--ink-900);
  border-radius: var(--r-lg);
  padding: clamp(20px, 3.6vw, 40px);
}
.page-faq .faq-group--paper .faq-group-head { border-top-color: rgba(16, 24, 40, .22); }
.page-faq .faq-group--paper .faq-group-head .section-title { color: var(--ink-900); }
.page-faq .faq-group--paper .faq-group-note { color: #667085; }
.page-faq .faq-group--paper .qa {
  background: #ffffff;
  border-color: var(--faq-line-light);
  box-shadow: 0 1px 0 rgba(16, 24, 40, .04);
}
.page-faq .faq-group--paper .qa[open] { background: #ffffff; border-color: rgba(14, 76, 76, .45); }
.page-faq .faq-group--paper .qa-q { color: var(--ink-900); }
.page-faq .faq-group--paper .qa-a,
.page-faq .faq-group--paper .qa-a li { color: var(--faq-body-light); }
.page-faq .faq-group--paper .qa-a strong { color: var(--teal-700); }
.page-faq .faq-group--paper .qa-mark { border-color: rgba(16, 24, 40, .26); }
.page-faq .faq-group--paper .qa-mark::before,
.page-faq .faq-group--paper .qa-mark::after { background: var(--teal-700); }

/* ---------- 联系面板 ---------- */
.page-faq .faq-contact {
  padding: clamp(24px, 4vw, 46px);
  background: var(--teal-700);
  border: 1px solid rgba(182, 240, 74, .22);
}
.page-faq .faq-contact-inner { display: grid; grid-template-columns: 1fr; gap: 28px; }
.page-faq .faq-contact-main .section-title { margin: 0; color: #ffffff; }
.page-faq .faq-checklist {
  margin: 18px 0 0;
  padding-left: 1.2rem;
  display: grid;
  gap: 9px;
  font-size: .94rem;
  line-height: 1.75;
  color: #dff2ea;
}
.page-faq .faq-contact-lede {
  margin: 18px 0 0;
  font-size: .94rem;
  line-height: 1.8;
  color: #dff2ea;
}
.page-faq .faq-contact-lede a {
  color: var(--lime-400);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-contact-side {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: clamp(18px, 3vw, 26px);
  border-radius: var(--r-md);
  background: rgba(11, 18, 32, .5);
  border: 1px solid rgba(182, 240, 74, .2);
}
.page-faq .faq-contact-side .status-capsule { align-self: flex-start; }
.page-faq .faq-contact-side .col-note { margin: 0; color: var(--slate-300); }

.page-faq .faq-contact-list {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 16px;
  margin: 0;
  font-size: .9rem;
  line-height: 1.7;
}
.page-faq .faq-contact-list dt { color: var(--slate-300); white-space: nowrap; }
.page-faq .faq-contact-list dd {
  margin: 0;
  color: #ffffff;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 12px;
  min-width: 0;
  overflow-wrap: anywhere;
}
.page-faq .faq-mail { font-family: var(--font-num); font-size: .88rem; }
.page-faq .faq-contact-side .btn { align-self: flex-start; }

/* ---------- 延伸入口 ---------- */
.page-faq .faq-more {
  margin-top: clamp(34px, 6vw, 68px);
  padding-top: 24px;
  border-top: 1px solid var(--line);
}
.page-faq .faq-more .section-title { margin: 0; color: #ffffff; }
.page-faq .faq-more-lede {
  margin: 10px 0 0;
  font-size: .92rem;
  color: var(--slate-300);
}
.page-faq .faq-more-links {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}
.page-faq .faq-more-links li {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 16px 18px;
  border-radius: var(--r-md);
  background: var(--ink-800);
  border: 1px solid var(--line);
  transition: border-color var(--dur) ease, transform var(--dur) ease;
}
.page-faq .faq-more-links li:hover { border-color: var(--electric-500); transform: translateY(-2px); }
.page-faq .faq-more-links a {
  color: var(--electric-500);
  font-weight: 700;
  font-size: .98rem;
  text-decoration: none;
}
.page-faq .faq-more-links a:hover { text-decoration: underline; text-underline-offset: 3px; }
.page-faq .faq-more-links span {
  font-size: .85rem;
  line-height: 1.7;
  color: var(--slate-300);
}

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

@media (min-width: 900px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(190px, 1fr) minmax(0, 2.2fr);
    gap: 34px;
    align-items: start;
  }
  .page-faq .faq-group-head { border-top-width: 2px; }
  .page-faq .faq-list { margin-top: 0; }
  .page-faq .faq-contact-inner { grid-template-columns: minmax(0, 1.35fr) minmax(280px, 1fr); gap: 38px; }
  .page-faq .faq-more-links { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (max-width: 420px) {
  .page-faq .faq-letter { width: 36px; height: 36px; }
  .page-faq .qa-q { padding: 14px 16px; }
  .page-faq .qa-a { padding: 0 16px 18px; }
  .page-faq .faq-contact-list { grid-template-columns: 1fr; gap: 2px; }
  .page-faq .faq-contact-list dt { margin-top: 8px; }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .qa-mark::after,
  .page-faq .faq-letter,
  .page-faq .faq-more-links li { transition: none; }
}