.page-faq {
  --faq-line: rgba(58, 63, 71, .16);
  --faq-line-soft: rgba(58, 63, 71, .10);
  background: var(--paper-panel);
  color: var(--ink-base);
  overflow-x: hidden;
}

/* ---------- 首屏：对角橙色块 + 轮次刻度底纹 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--ink-base);
  color: var(--paper-000);
  padding: 26px 0 44px;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -20%;
  right: -14%;
  width: min(600px, 82%);
  aspect-ratio: 1 / 1;
  background: linear-gradient(150deg, var(--lava-600), var(--lava-900) 70%);
  clip-path: polygon(0 0, 100% 20%, 76% 100%, 6% 84%);
  opacity: .88;
  z-index: -2;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(90deg, rgba(252, 250, 246, .07) 0 1px, transparent 1px 46px),
    repeating-linear-gradient(0deg, rgba(252, 250, 246, .05) 0 1px, transparent 1px 46px);
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .85), transparent 82%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .85), transparent 82%);
}

.page-faq .faq-hero-wrap,
.page-faq .faq-summary-wrap {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero .breadcrumb,
.page-faq .faq-hero .breadcrumb a {
  color: rgba(252, 250, 246, .62);
}

.page-faq .faq-hero .breadcrumb [aria-current="page"] {
  color: var(--paper-000);
}

.page-faq .faq-hero .section-eyebrow {
  color: var(--lava-300);
  margin-top: 18px;
}

.page-faq .faq-title {
  font-family: var(--font-display);
  font-size: clamp(29px, 6.4vw, 50px);
  line-height: 1.16;
  letter-spacing: -.01em;
  margin: 10px 0 16px;
  max-width: 22ch;
}

.page-faq .faq-hero .section-lede {
  color: rgba(252, 250, 246, .78);
  max-width: 66ch;
  font-size: 16px;
  line-height: 1.8;
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-faq .faq-hero .btn-ghost {
  color: var(--paper-000);
  border-color: rgba(252, 250, 246, .34);
}

.page-faq .faq-hero .btn-ghost:hover {
  border-color: var(--lava-300);
  color: var(--lava-300);
}

.page-faq .faq-summary {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 34px;
  background: rgba(252, 250, 246, .14);
  border: 1px solid rgba(252, 250, 246, .14);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.page-faq .faq-summary-item {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 14px 16px;
  background: #191C22;
}

.page-faq .faq-summary-num {
  font-family: var(--font-mono);
  font-size: 24px;
  line-height: 1.1;
  font-weight: 600;
  color: var(--lava-300);
}

.page-faq .faq-summary-label {
  font-size: 12.5px;
  line-height: 1.5;
  color: rgba(252, 250, 246, .62);
}

/* ---------- 主体：左索引 + 右折叠面板 ---------- */
.page-faq .faq-body {
  padding: 34px 0 56px;
}

.page-faq .faq-layout {
  display: grid;
  gap: 24px;
  align-items: start;
}

.page-faq .faq-index {
  background: var(--paper-000);
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  padding: 16px 16px 14px;
  box-shadow: var(--shadow-panel);
}

.page-faq .faq-index-title {
  margin: 0 0 10px;
  font-family: var(--font-cond);
  font-size: 13px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--graphite-400);
}

.page-faq .faq-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4px;
  counter-reset: none;
}

.page-faq .faq-index-link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 9px;
  border-radius: 8px;
  font-size: 14px;
  line-height: 1.45;
  color: var(--graphite-700);
  text-decoration: none;
  transition: background-color .2s var(--ease), color .2s var(--ease);
}

.page-faq .faq-index-link:hover,
.page-faq .faq-index-link:focus-visible {
  background: rgba(226, 87, 31, .09);
  color: var(--lava-900);
}

.page-faq .faq-index-num {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--lava-600);
  flex: 0 0 auto;
}

.page-faq .faq-index-foot {
  margin: 12px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--faq-line-soft);
  font-size: 13px;
  line-height: 1.7;
  color: var(--graphite-400);
}

.page-faq .faq-index-foot a {
  color: var(--lava-900);
  text-decoration: underline;
  text-decoration-color: rgba(226, 87, 31, .45);
}

.page-faq .faq-groups {
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-width: 0;
}

/* ---------- 分组面板 ---------- */
.page-faq .faq-group {
  position: relative;
  background: var(--paper-000);
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  padding: 20px 18px 8px;
  box-shadow: var(--shadow-panel);
  scroll-margin-top: 96px;
  min-width: 0;
}

.page-faq .faq-group::before {
  content: "";
  position: absolute;
  top: 0;
  left: 18px;
  right: 42%;
  height: 3px;
  border-radius: 0 0 3px 3px;
  background: linear-gradient(90deg, var(--lava-600), rgba(226, 87, 31, 0));
}

.page-faq .faq-group-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--faq-line);
  flex-wrap: wrap;
}

.page-faq .faq-group-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--paper-000);
  background: var(--ink-base);
  padding: 4px 8px;
  border-radius: 5px;
  flex: 0 0 auto;
}

.page-faq .faq-group-title {
  font-family: var(--font-display);
  font-size: clamp(19px, 3.6vw, 25px);
  line-height: 1.3;
  margin: 0;
}

.page-faq .faq-group-note {
  margin: 12px 0 2px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--graphite-400);
}

/* ---------- 折叠条目 ---------- */
.page-faq .acc-item {
  border-bottom: 1px dashed var(--faq-line-soft);
  transition: background-color .2s var(--ease);
}

.page-faq .acc-item:last-child {
  border-bottom: 0;
}

.page-faq .acc-item[data-open] {
  background: linear-gradient(90deg, rgba(226, 87, 31, .07), rgba(226, 87, 31, 0) 62%);
}

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

.page-faq .acc-trigger {
  width: 100%;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin: 0;
  padding: 15px 8px 15px 6px;
  background: none;
  border: 0;
  border-radius: 8px;
  font: inherit;
  color: inherit;
  text-align: left;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  transition: color .2s var(--ease);
}

.page-faq .acc-trigger:focus-visible {
  outline: 2px solid var(--lava-600);
  outline-offset: 2px;
}

.page-faq .faq-q-num {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--graphite-400);
  padding-top: 4px;
  flex: 0 0 auto;
}

.page-faq .faq-q-text {
  flex: 1 1 auto;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
}

.page-faq .acc-trigger:hover .faq-q-text {
  color: var(--lava-600);
}

.page-faq .acc-icon {
  position: relative;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  margin-top: 3px;
  border: 1px solid var(--graphite-400);
  border-radius: 6px;
  transition: background-color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .acc-icon::before,
.page-faq .acc-icon::after {
  content: "";
  position: absolute;
  background: var(--graphite-700);
  transition: transform .22s var(--ease), background-color .2s var(--ease);
}

.page-faq .acc-icon::before {
  left: 5px;
  right: 5px;
  top: 9.5px;
  height: 1.5px;
}

.page-faq .acc-icon::after {
  top: 5px;
  bottom: 5px;
  left: 9.5px;
  width: 1.5px;
}

.page-faq .acc-item[data-open] .acc-icon {
  border-color: var(--lava-600);
  background: rgba(226, 87, 31, .13);
}

.page-faq .acc-item[data-open] .acc-icon::before,
.page-faq .acc-item[data-open] .acc-icon::after {
  background: var(--lava-600);
}

.page-faq .acc-item[data-open] .acc-icon::after {
  transform: scaleY(0);
}

.page-faq .acc-panel {
  display: block;
}

.js .page-faq .acc-item:not([data-open]) > .acc-panel {
  display: none;
}

.page-faq .acc-content {
  padding: 0 10px 18px 32px;
}

.page-faq .acc-content p {
  margin: 0 0 10px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--graphite-700);
}

.page-faq .acc-content p:last-child {
  margin-bottom: 0;
}

.page-faq .acc-content a {
  color: var(--lava-900);
  text-decoration: underline;
  text-decoration-color: rgba(226, 87, 31, .5);
  text-underline-offset: 3px;
}

.page-faq .acc-content a:hover {
  color: var(--lava-600);
}

/* ---------- 组内配图 ---------- */
.page-faq .faq-figure {
  margin: 10px 0 16px;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1px solid var(--faq-line);
}

.page-faq .faq-figure .media-caption {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--graphite-400);
}

/* ---------- 底部引导带 ---------- */
.page-faq .faq-band {
  position: relative;
  overflow: hidden;
  background: var(--ink-base);
  color: var(--paper-000);
  padding: 56px 0;
}

.page-faq .faq-band-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-faq .faq-band-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .32;
}

.page-faq .faq-band::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(100deg, rgba(20, 22, 26, .95), rgba(20, 22, 26, .58));
  pointer-events: none;
}

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

.page-faq .faq-band-copy {
  max-width: 620px;
}

.page-faq .faq-band .section-eyebrow {
  color: var(--lava-300);
}

.page-faq .faq-band .section-title {
  color: var(--paper-000);
  font-family: var(--font-display);
  font-size: clamp(24px, 4.6vw, 34px);
  line-height: 1.24;
  margin: 8px 0 14px;
}

.page-faq .faq-band .section-lede {
  color: rgba(252, 250, 246, .76);
  font-size: 15.5px;
  line-height: 1.85;
  margin: 0;
}

.page-faq .faq-band-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-faq .faq-band .btn-outline {
  color: var(--paper-000);
  border-color: rgba(252, 250, 246, .38);
}

.page-faq .faq-band .btn-outline:hover {
  border-color: var(--lava-300);
  color: var(--lava-300);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero {
    padding: 32px 0 52px;
  }

  .page-faq .faq-summary {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-group {
    padding: 24px 26px 10px;
  }

  .page-faq .faq-group::before {
    left: 26px;
    right: 55%;
  }

  .page-faq .acc-content {
    padding-left: 38px;
    padding-right: 18px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-body {
    padding: 46px 0 72px;
  }

  .page-faq .faq-layout {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 40px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-index-list {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .page-faq .faq-band {
    padding: 78px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .acc-icon,
  .page-faq .acc-icon::before,
  .page-faq .acc-icon::after,
  .page-faq .acc-trigger,
  .page-faq .acc-item,
  .page-faq .faq-index-link {
    transition: none !important;
  }
}