.page-faq {
  --faq-panel: rgba(20, 38, 92, 0.42);
  --faq-panel-2: rgba(13, 22, 51, 0.72);
  --faq-hair: rgba(168, 180, 216, 0.16);
  position: relative;
  padding: 28px 0 96px;
  overflow-x: hidden;
}

.page-faq .faq-aurora {
  position: absolute;
  inset: -10% -20% auto -20%;
  height: 720px;
  pointer-events: none;
  background:
    radial-gradient(560px 340px at 18% 22%, rgba(37, 230, 211, 0.16), transparent 70%),
    radial-gradient(520px 320px at 82% 8%, rgba(255, 138, 61, 0.14), transparent 72%),
    radial-gradient(620px 420px at 55% 42%, rgba(122, 92, 255, 0.12), transparent 74%);
}

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

/* 面包屑 */
.page-faq .breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
}
.page-faq .breadcrumbs__item {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--silver);
}
.page-faq .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  color: rgba(168, 180, 216, 0.45);
}
.page-faq .breadcrumbs__link {
  color: var(--silver);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}
.page-faq .breadcrumbs__link:hover {
  color: var(--cyan);
}
.page-faq .breadcrumbs__current {
  color: var(--white);
}

/* 首屏 */
.page-faq .faq-hero {
  display: grid;
  gap: 30px;
  margin-top: 26px;
  align-items: center;
}
.page-faq .faq-eyebrow {
  display: inline-block;
  margin: 0 0 16px;
  padding: 5px 14px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
}
.page-faq .faq-hero h1 {
  margin: 0;
  font-size: 34px;
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--white);
}
.page-faq .faq-hero__lead {
  margin: 20px 0 0;
  max-width: 40ch;
  font-size: 17px;
  line-height: 1.8;
  color: var(--silver);
}
.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}
.page-faq .faq-hero__visual {
  position: relative;
  margin: 0;
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius-l);
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(20, 38, 92, 0.65), rgba(7, 11, 26, 0.9)),
    repeating-linear-gradient(90deg, rgba(168, 180, 216, 0.1) 0 1px, transparent 1px 62px),
    repeating-linear-gradient(0deg, rgba(168, 180, 216, 0.1) 0 1px, transparent 1px 62px);
}
.page-faq .faq-hero__visual img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  mix-blend-mode: luminosity;
  opacity: 0.92;
}

/* 数据条 */
.page-faq .faq-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 42px;
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius-m);
  background: var(--faq-hair);
  overflow: hidden;
}
.page-faq .faq-stat {
  padding: 20px 20px 22px;
  background: var(--faq-panel-2);
}
.page-faq .faq-stat__value {
  margin: 0;
  font-size: 32px;
  line-height: 1;
  font-weight: 700;
}
.page-faq .faq-stat__label {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--silver);
}

/* 主体布局 */
.page-faq .faq-layout {
  display: grid;
  gap: 20px;
  margin-top: 70px;
}
.page-faq .faq-aside {
  display: grid;
  gap: 24px;
  align-self: start;
}
.page-faq .toc__title {
  margin: 0 0 16px;
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--silver);
}
.page-faq .toc__list {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-faq .toc__link {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 14px;
  font-size: 15px;
  color: var(--silver);
  text-decoration: none;
  border-left: 2px solid transparent;
  border-radius: 0 var(--radius-s) var(--radius-s) 0;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}
.page-faq .toc__link:hover {
  color: var(--white);
  background: rgba(37, 230, 211, 0.07);
}
.page-faq .toc__link[aria-current="true"] {
  color: var(--white);
  border-left-color: var(--orange);
  background: linear-gradient(90deg, rgba(255, 138, 61, 0.16), transparent 85%);
}
.page-faq .toc__no {
  flex: none;
  font-size: 12px;
  color: var(--cyan);
}
.page-faq .faq-aside__note {
  padding: 22px;
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius-m);
  background:
    radial-gradient(320px 180px at 20% 0%, rgba(122, 92, 255, 0.2), transparent 72%),
    var(--faq-panel);
}
.page-faq .faq-aside__note-title {
  margin: 0 0 10px;
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
}
.page-faq .faq-aside__note-text {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--silver);
}

/* 问答分组 */
.page-faq .faq-group {
  scroll-margin-top: calc(var(--header-offset) + 16px);
  padding-bottom: 8px;
}
.page-faq .faq-group + .faq-group {
  margin-top: 62px;
}
.page-faq .faq-group__head {
  display: flex;
  gap: 16px;
  padding-top: 20px;
  border-top: 1px solid var(--faq-hair);
}
.page-faq .faq-group__index {
  flex: none;
  font-size: 20px;
  line-height: 1.3;
  color: var(--orange);
}
.page-faq .faq-group__title {
  margin: 0;
  font-size: 24px;
  line-height: 1.3;
  color: var(--white);
}
.page-faq .faq-group__lead {
  margin: 10px 0 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--silver);
}
.page-faq .faq-list {
  margin-top: 24px;
}

.page-faq .faq-item {
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius-m);
  background: linear-gradient(160deg, rgba(20, 38, 92, 0.5), rgba(13, 22, 51, 0.66));
  overflow: hidden;
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}
.page-faq .faq-item + .faq-item {
  margin-top: 12px;
}
.page-faq .faq-item[open] {
  border-color: var(--line-strong);
  background: linear-gradient(160deg, rgba(20, 38, 92, 0.72), rgba(13, 22, 51, 0.82));
}
.page-faq .faq-item__q {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--white);
  cursor: pointer;
  list-style: none;
}
.page-faq .faq-item__q::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item__q::after {
  content: "";
  flex: none;
  margin-left: auto;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(45deg);
  transition: transform 0.25s var(--ease);
}
.page-faq .faq-item[open] .faq-item__q::after {
  transform: rotate(-135deg);
}
.page-faq .faq-item__no {
  flex: none;
  font-size: 12px;
  color: var(--cyan);
}
.page-faq .faq-item__text {
  min-width: 0;
}
.page-faq .faq-item__a {
  padding: 0 20px 20px;
  animation: faq-reveal 0.28s var(--ease);
}
.page-faq .faq-item__a p {
  margin: 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--silver);
}

@keyframes faq-reveal {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* 区块内配图 */
.page-faq .faq-figure {
  margin: 26px 0 0;
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius-m);
  overflow: hidden;
  background: var(--faq-panel-2);
}
.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-faq .faq-figure .media__caption {
  padding: 12px 18px;
  font-size: 13px;
  color: var(--silver);
  border-top: 1px solid var(--faq-hair);
}

/* 延伸入口 */
.page-faq .faq-more {
  margin-top: 84px;
  padding-top: 34px;
  border-top: 1px solid var(--faq-hair);
}
.page-faq .faq-more__title {
  margin: 0;
  font-size: 24px;
  line-height: 1.35;
  color: var(--white);
}
.page-faq .faq-more__lead {
  margin: 12px 0 28px;
  max-width: 44ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--silver);
}
.page-faq .faq-more__grid {
  display: grid;
  gap: 14px;
}
.page-faq .faq-more__card {
  display: block;
  padding: 22px;
  text-decoration: none;
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius-m);
  background: linear-gradient(150deg, rgba(20, 38, 92, 0.5), rgba(7, 11, 26, 0.6));
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease);
}
.page-faq .faq-more__card:hover {
  transform: translateY(-3px);
  border-color: var(--line-strong);
}
.page-faq .faq-more__card .card__label {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--orange);
}
.page-faq .faq-more__card .card__title {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 700;
  color: var(--white);
}
.page-faq .faq-more__card .card__meta {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--silver);
}

/* 平板 */
@media (min-width: 720px) {
  .page-faq {
    padding-bottom: 112px;
  }
  .page-faq .faq-hero h1 {
    font-size: 46px;
  }
  .page-faq .faq-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-faq .faq-group__title {
    font-size: 28px;
  }
  .page-faq .faq-more__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-faq .faq-item__q {
    padding: 20px 26px;
    font-size: 17px;
  }
  .page-faq .faq-item__a {
    padding: 0 26px 22px;
  }
}

/* 桌面：左目录 + 右问答 */
@media (min-width: 1000px) {
  .page-faq .faq-hero {
    grid-template-columns: 1.02fr 0.98fr;
    gap: 56px;
  }
  .page-faq .faq-hero h1 {
    font-size: 56px;
  }
  .page-faq .faq-layout {
    grid-template-columns: 244px minmax(0, 1fr);
    gap: 64px;
    margin-top: 88px;
  }
  .page-faq .faq-aside {
    position: sticky;
    top: calc(var(--header-offset) + 20px);
  }
  .page-faq .faq-more__head {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 32px;
    align-items: end;
  }
  .page-faq .faq-more__lead {
    margin: 0 0 4px;
    justify-self: end;
    text-align: right;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-hero h1 {
    font-size: 62px;
  }
}