.page-faq .faq-hero {
  position: relative;
  padding: 36px 0 56px;
  border-bottom: 1px solid var(--c-grid);
  background:
    radial-gradient(120% 92% at 86% 0%, rgba(10, 132, 255, 0.18), transparent 62%),
    linear-gradient(180deg, rgba(255, 107, 53, 0.07), transparent 56%);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  align-items: center;
}

.page-faq .faq-hero__copy {
  min-width: 0;
}

.page-faq .faq-hero__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.75rem, 4.8vw, 3rem);
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--c-bright);
  max-width: 22ch;
}

.page-faq .faq-hero__lede {
  margin: 18px 0 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--c-text);
  max-width: 46ch;
}

.page-faq .faq-hero__quick {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-hero__quick a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid var(--c-grid);
  background: rgba(14, 21, 32, 0.72);
  color: var(--c-bright);
  font-family: var(--font-head);
  font-size: 14px;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: border-color 180ms var(--ease-speed), transform 180ms var(--ease-speed);
}

.page-faq .faq-hero__quick a:hover,
.page-faq .faq-hero__quick a:focus-visible {
  border-color: var(--c-blue);
  transform: translateY(-2px);
}

.page-faq .faq-hero__quick .num {
  color: var(--c-orange);
}

.page-faq .faq-hero__live {
  margin: 24px 0 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-text);
}

.page-faq .faq-live-dot {
  flex: none;
  width: 8px;
  height: 8px;
  background: var(--c-live);
  box-shadow: 0 0 0 4px rgba(43, 224, 122, 0.14);
}

.page-faq .faq-hero__media {
  position: relative;
  margin: 0;
  border: 1px solid var(--c-grid);
  background: var(--c-navy);
  overflow: hidden;
}

.page-faq .faq-hero__media::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 72px;
  height: 2px;
  background: linear-gradient(90deg, var(--c-blue), var(--c-orange));
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* ---------- 主体双栏 ---------- */

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 36px;
  padding-top: 44px;
  padding-bottom: 80px;
}

.page-faq .faq-nav {
  min-width: 0;
}

.page-faq .faq-nav__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--c-blue-soft);
}

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

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

.page-faq .faq-nav__item {
  flex: none;
}

.page-faq .faq-nav__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 14px;
  border: 1px solid var(--c-grid);
  color: var(--c-text);
  font-family: var(--font-head);
  font-size: 14px;
  line-height: 1.3;
  white-space: nowrap;
  text-decoration: none;
  transition: border-color 180ms var(--ease-speed), color 180ms var(--ease-speed);
}

.page-faq .faq-nav__link:hover,
.page-faq .faq-nav__link:focus-visible {
  border-color: var(--c-blue);
  color: var(--c-bright);
}

.page-faq .faq-nav__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-orange);
}

.page-faq .faq-body {
  min-width: 0;
}

/* ---------- 分类与条目 ---------- */

.page-faq .faq-group {
  margin-bottom: 56px;
  scroll-margin-top: 96px;
}

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

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--c-grid);
}

.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--c-orange);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.375rem, 3vw, 1.75rem);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--c-bright);
}

.page-faq .faq-list {
  border-top: 1px solid transparent;
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--c-grid);
}

.page-faq .faq-item__q {
  position: relative;
  display: flex;
  align-items: flex-start;
  min-height: 44px;
  padding: 18px 40px 18px 0;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-head);
  font-size: 16px;
  line-height: 1.6;
  color: var(--c-bright);
  transition: color 180ms var(--ease-speed);
}

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

.page-faq .faq-item__q::after {
  content: "";
  position: absolute;
  right: 6px;
  top: 26px;
  width: 10px;
  height: 10px;
  border-right: 1px solid var(--c-blue-soft);
  border-bottom: 1px solid var(--c-blue-soft);
  transform: rotate(45deg);
  transition: transform 200ms var(--ease-speed), border-color 200ms var(--ease-speed);
}

.page-faq .faq-item[open] .faq-item__q {
  color: var(--c-bright);
}

.page-faq .faq-item[open] .faq-item__q::after {
  transform: rotate(225deg);
  border-color: var(--c-orange);
}

.page-faq .faq-item__q:hover {
  color: var(--c-blue-soft);
}

.page-faq .faq-item__a {
  max-width: 68ch;
  padding: 0 0 20px;
  font-family: var(--font-body);
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--c-text);
}

.page-faq .faq-item__a p {
  margin: 0 0 0.85em;
}

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

.page-faq .faq-item__a a {
  color: var(--c-blue-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-hl {
  background: rgba(10, 132, 255, 0.16);
  color: var(--c-bright);
  padding: 0 4px;
}

.page-faq .faq-figure {
  margin: 24px 0 0;
  border: 1px solid var(--c-grid);
  background: var(--c-navy);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-faq .faq-figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--c-grid);
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-text);
}

/* ---------- 联系方式面板 ---------- */

.page-faq .faq-group--help {
  border: 1px solid var(--c-grid);
  padding: 22px 18px 26px;
  background: linear-gradient(155deg, rgba(10, 132, 255, 0.11), rgba(255, 107, 53, 0.06) 68%, transparent);
}

.page-faq .faq-contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin-top: 22px;
  border: 1px solid var(--c-grid);
  background: var(--c-grid);
}

.page-faq .faq-contact__item {
  min-width: 0;
  padding: 18px 16px;
  background: var(--c-navy);
}

.page-faq .faq-contact__label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--c-blue-soft);
}

.page-faq .faq-contact__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.6;
  color: var(--c-bright);
  overflow-wrap: anywhere;
}

.page-faq .faq-contact__note {
  margin: 8px 0 0;
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-text);
}

/* ---------- 桌面端 ---------- */

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 52px 0 72px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 56px;
  }

  .page-faq .faq-hero__lede {
    font-size: 17px;
  }

  .page-faq .faq-layout {
    grid-template-columns: 230px minmax(0, 1fr);
    gap: 60px;
    padding-top: 56px;
    padding-bottom: 104px;
  }

  .page-faq .faq-nav {
    position: sticky;
    top: 88px;
    border-left: 1px solid var(--c-grid);
  }

  .page-faq .faq-nav__title {
    padding-left: 18px;
  }

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

  .page-faq .faq-nav__item {
    flex: initial;
  }

  .page-faq .faq-nav__link {
    display: block;
    min-height: 44px;
    margin-left: -1px;
    padding: 11px 6px 11px 18px;
    border: 0;
    border-left: 2px solid transparent;
    white-space: normal;
    transition: border-color 180ms var(--ease-speed), color 180ms var(--ease-speed), background 180ms var(--ease-speed);
  }

  .page-faq .faq-nav__link:hover,
  .page-faq .faq-nav__link:focus-visible {
    border-left-color: var(--c-blue);
    background: linear-gradient(90deg, rgba(10, 132, 255, 0.13), transparent 72%);
  }

  .page-faq .faq-nav__num {
    display: inline-block;
    margin-right: 8px;
  }

  .page-faq .faq-group {
    margin-bottom: 72px;
  }

  .page-faq .faq-item__q {
    font-size: 17px;
    padding: 20px 48px 20px 0;
  }

  .page-faq .faq-item__q::after {
    right: 10px;
    top: 28px;
  }

  .page-faq .faq-group--help {
    padding: 30px 28px 34px;
  }

  .page-faq .faq-contact {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    margin-top: 26px;
  }

  .page-faq .faq-figure {
    margin-top: 30px;
  }
}

/* ---------- 动效降级 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-hero__quick a,
  .page-faq .faq-nav__link,
  .page-faq .faq-item__q,
  .page-faq .faq-item__q::after {
    transition: none;
  }

  .page-faq .faq-hero__quick a:hover,
  .page-faq .faq-hero__quick a:focus-visible {
    transform: none;
  }
}