.page-faq {
  --faq-rail-w: 236px;
  --faq-ink-soft: var(--grey);
  --faq-tint: var(--mist);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(24px, 4vw, 44px) 0 clamp(44px, 7vw, 96px);
  background:
    radial-gradient(92% 118% at 86% -6%, rgba(255, 183, 126, 0.34), transparent 62%),
    radial-gradient(70% 90% at -10% 40%, rgba(108, 92, 224, 0.09), transparent 66%),
    var(--paper);
  overflow: hidden;
}

.page-faq .faq-hero .crumbs {
  margin-bottom: clamp(26px, 4.4vw, 52px);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 52px);
  align-items: end;
}

.page-faq .faq-hero__lead {
  max-width: 68ch;
}

.page-faq .faq-hero h1 {
  margin: 14px 0 20px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 6.2vw, 60px);
  line-height: 1.06;
  letter-spacing: -0.012em;
  color: var(--ink);
  text-wrap: balance;
}

.page-faq .faq-hero__lede {
  margin: 0;
  max-width: 60ch;
  font-size: clamp(15.5px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--faq-ink-soft);
}

.page-faq .faq-hero__aside {
  position: relative;
  padding: clamp(20px, 3.2vw, 30px);
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  background: linear-gradient(158deg, rgba(255, 255, 255, 0.88), rgba(255, 241, 229, 0.74));
  box-shadow: var(--shadow-soft);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

.page-faq .faq-hero__aside-label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--grey);
}

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

.page-faq .faq-hero__quick a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 12px 2px;
  border-bottom: 1px solid var(--rule);
  color: var(--ink);
  text-decoration: none;
  font-size: 15px;
  line-height: 1.5;
  transition: color 0.16s ease, border-color 0.16s ease;
}

.page-faq .faq-hero__quick a:hover,
.page-faq .faq-hero__quick a:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--peach);
}

.page-faq .faq-hero__quick-num {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--orange);
}

.page-faq .faq-hero__aside-foot {
  margin: 16px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--grey);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  padding-top: clamp(8px, 2vw, 20px);
}

.page-faq .faq-body__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 44px);
  align-items: start;
}

/* 分类索引 */
.page-faq .faq-rail__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--grey);
}

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

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

.page-faq .faq-rail__list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  padding: 9px 15px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: #fff;
  color: var(--ink);
  font-size: 14px;
  line-height: 1.2;
  text-decoration: none;
  transition: border-color 0.16s ease, color 0.16s ease, background 0.16s ease;
}

.page-faq .faq-rail__list a:hover,
.page-faq .faq-rail__list a:focus-visible {
  border-color: var(--violet);
  color: var(--violet);
  background: rgba(108, 92, 224, 0.06);
}

.page-faq .faq-rail__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--violet);
}

/* ---------- 分类面板 ---------- */
.page-faq .faq-panel {
  margin-bottom: clamp(48px, 7vw, 88px);
  scroll-margin-top: calc(var(--header-offset) + 24px);
}

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

.page-faq .faq-panel__head,
.page-faq .faq-solve__head {
  margin-bottom: clamp(18px, 2.6vw, 28px);
}

.page-faq .faq-panel__idx {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.2em;
  color: var(--orange);
}

.page-faq .faq-panel__head h2,
.page-faq .faq-solve__head h2 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 3.6vw, 34px);
  line-height: 1.16;
  letter-spacing: -0.008em;
  color: var(--ink);
}

.page-faq .faq-panel__lede,
.page-faq .faq-solve__lede {
  margin: 0;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.76;
  color: var(--faq-ink-soft);
}

/* ---------- 问答条目 ---------- */
.page-faq .qa {
  position: relative;
  border-bottom: 1px solid var(--rule);
  background: #fff;
  transition: background 0.16s ease;
}

.page-faq .qa:first-of-type {
  border-top: 1px solid var(--rule);
}

.page-faq .qa::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  z-index: 2;
  border-radius: 0 3px 3px 0;
  background: linear-gradient(180deg, var(--peach), var(--orange));
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform 0.2s ease;
}

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

.page-faq .qa[open] {
  background: rgba(255, 241, 229, 0.42);
}

.page-faq .qa > summary {
  list-style: none;
  cursor: pointer;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: start;
  padding: 18px 16px 18px 20px;
  transition: background 0.16s ease;
}

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

.page-faq .qa > summary::marker {
  content: "";
}

.page-faq .qa > summary:hover {
  background: rgba(255, 241, 229, 0.7);
}

.page-faq .qa > summary:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: -2px;
}

.page-faq .qa__code {
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--violet);
  white-space: nowrap;
}

.page-faq .qa__q {
  font-size: 16px;
  line-height: 1.54;
  font-weight: 600;
  color: var(--ink);
}

.page-faq .qa__mark {
  position: relative;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  border: 1px solid var(--rule);
  border-radius: 50%;
  background: #fff;
  transition: border-color 0.16s ease, background 0.16s ease;
}

.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--grey);
  transition: transform 0.2s ease, background 0.16s ease;
}

.page-faq .qa__mark::before {
  width: 10px;
  height: 1.5px;
  transform: translate(-50%, -50%);
}

.page-faq .qa__mark::after {
  width: 1.5px;
  height: 10px;
  transform: translate(-50%, -50%);
}

.page-faq .qa[open] .qa__mark {
  border-color: var(--orange);
  background: var(--mist);
}

.page-faq .qa[open] .qa__mark::before,
.page-faq .qa[open] .qa__mark::after {
  background: var(--orange);
}

.page-faq .qa[open] .qa__mark::after {
  transform: translate(-50%, -50%) scaleY(0);
}

.page-faq .qa__body {
  padding: 2px 20px 24px 20px;
  animation: faq-reveal 0.18s ease both;
}

@keyframes faq-reveal {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-faq .qa__steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: faq-step;
  display: grid;
  gap: 11px;
  max-width: 66ch;
}

.page-faq .qa__steps > li {
  counter-increment: faq-step;
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  font-size: 15px;
  line-height: 1.72;
  color: var(--faq-ink-soft);
}

.page-faq .qa__steps > li::before {
  content: counter(faq-step, decimal-leading-zero);
  width: 24px;
  height: 22px;
  border-radius: 999px;
  background: var(--mist);
  color: var(--orange);
  font-family: var(--font-mono);
  font-size: 10.5px;
  line-height: 22px;
  text-align: center;
}

.page-faq .qa__note {
  margin: 14px 0 0;
  padding-left: 36px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.72;
  color: var(--grey);
}

.page-faq .qa__note a {
  color: var(--violet);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

/* ---------- 图 ---------- */
.page-faq .faq-figure {
  margin: clamp(26px, 3.6vw, 42px) 0 clamp(4px, 1vw, 12px);
}

.page-faq .figure__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  object-fit: cover;
}

.page-faq .figure__caption {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--grey);
}

/* ---------- 咨询引导带 ---------- */
.page-faq .faq-bridge {
  padding: clamp(20px, 3.6vw, 40px) 0 clamp(36px, 5vw, 64px);
}

.page-faq .faq-bridge__inner {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  padding: clamp(24px, 4vw, 42px);
  border-radius: var(--radius-lg);
  background: linear-gradient(118deg, var(--midnight) 0%, #16324a 58%, #1e4153 100%);
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-bridge__inner::after {
  content: "";
  position: absolute;
  right: -90px;
  top: -100px;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 106, 31, 0.52), transparent 68%);
  pointer-events: none;
}

.page-faq .faq-bridge__copy {
  position: relative;
  z-index: 1;
}

.page-faq .faq-bridge__kicker {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--peach);
}

.page-faq .faq-bridge h2 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px, 3.2vw, 32px);
  line-height: 1.18;
  color: #fff;
}

.page-faq .faq-bridge p {
  margin: 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.76;
  color: rgba(255, 255, 255, 0.78);
}

.page-faq .faq-bridge .btn {
  position: relative;
  z-index: 1;
  justify-self: start;
}

/* ---------- 收尾区块 ---------- */
.page-faq .faq-solve {
  padding-bottom: clamp(56px, 8vw, 104px);
}

.page-faq .faq-solve__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
  margin-bottom: clamp(24px, 3.6vw, 40px);
}

.page-faq .faq-solve__figure {
  margin: 0;
}

.page-faq .faq-solve__list {
  border-top: 1px solid var(--rule);
}

.page-faq .faq-solve__channels {
  margin-top: clamp(30px, 4.4vw, 52px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-faq .faq-solve__channel {
  padding: 20px 22px;
  border: 1px solid var(--rule);
  border-left: 3px solid var(--teal);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: rgba(255, 255, 255, 0.72);
}

.page-faq .faq-solve__channel-label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--grey);
}

.page-faq .faq-solve__channel-value {
  margin: 0 0 8px;
  font-size: 15.5px;
  line-height: 1.6;
  font-weight: 600;
  color: var(--ink);
  word-break: break-word;
}

.page-faq .faq-solve__channel-note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--faq-ink-soft);
}

.page-faq .faq-solve__more {
  margin: clamp(26px, 3.6vw, 40px) 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 14px 32px;
}

.page-faq .faq-solve__more .link-arrow {
  font-size: 14.5px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-solve__channels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-faq .faq-bridge__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 36px;
  }

  .page-faq .faq-solve__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(32px, 5vw, 64px);
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(36px, 6vw, 88px);
  }

  .page-faq .faq-body__grid {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: clamp(40px, 5vw, 76px);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-offset) + 28px);
    padding-bottom: 12px;
  }

  .page-faq .faq-rail__list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-rail__list a {
    width: 100%;
    padding: 11px 12px;
    border: 0;
    border-left: 2px solid var(--rule);
    border-radius: 0 8px 8px 0;
    background: transparent;
  }

  .page-faq .faq-rail__list a:hover,
  .page-faq .faq-rail__list a:focus-visible {
    border-left-color: var(--violet);
    background: rgba(108, 92, 224, 0.07);
  }

  .page-faq .qa > summary {
    padding: 20px 20px 20px 24px;
    gap: 16px;
  }

  .page-faq .qa__q {
    font-size: 16.5px;
  }

  .page-faq .qa__body {
    padding: 2px 24px 26px 24px;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-solve__channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__body {
    animation: none;
  }

  .page-faq .qa::before,
  .page-faq .qa > summary,
  .page-faq .qa__mark,
  .page-faq .qa__mark::before,
  .page-faq .qa__mark::after,
  .page-faq .faq-rail__list a {
    transition: none;
  }
}
</main>