.page-faq {
  --faq-shadow: 0 8px 24px rgba(10, 30, 63, 0.08);
  --faq-glass: rgba(255, 255, 255, 0.72);
  background: var(--c-bg);
  overflow: hidden;
}

.page-faq *,
.page-faq *::before,
.page-faq *::after {
  box-sizing: border-box;
}

/* ====== 首屏 Hero ====== */
.page-faq .faq-hero {
  position: relative;
  background: var(--grad-ocean);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(115deg, transparent 0%, transparent 38%, rgba(57, 255, 20, 0.16) 38%, rgba(57, 255, 20, 0.16) 38.6%, transparent 38.6%),
    linear-gradient(90deg, transparent 0%, transparent 76%, rgba(255, 255, 255, 0.07) 76%, rgba(255, 255, 255, 0.07) 100%);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 62%;
  height: 4px;
  background: var(--grad-speed);
  transform: skewX(-15deg);
  transform-origin: right bottom;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 48px var(--content-gutter) 96px;
  display: grid;
  gap: 32px;
}

.page-faq .faq-hero__text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.page-faq .faq-hero__kicker {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--c-neon);
  text-transform: uppercase;
  border-left: 3px solid var(--c-accent);
  padding-left: 10px;
}

.page-faq .faq-hero__title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7vw, 5.2rem);
  line-height: 1.04;
  letter-spacing: 0.01em;
  color: #fff;
}

.page-faq .faq-hero__lead {
  margin: 0 0 28px;
  max-width: 24em;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.8);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 36px;
}

.page-faq .faq-hero__actions .btn {
  min-width: 132px;
  justify-content: center;
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 32px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__stats li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-left: 14px;
  border-left: 3px solid var(--c-neon);
}

.page-faq .faq-hero__stat-num {
  font-family: var(--font-display);
  font-size: 30px;
  line-height: 1;
  color: #fff;
}

.page-faq .faq-hero__stat-label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.68);
}

.page-faq .faq-hero__visual {
  position: relative;
}

.page-faq .faq-hero__img {
  display: block;
  width: 100%;
  height: auto;
  min-height: 180px;
  max-height: 460px;
  object-fit: cover;
  border-radius: 18px;
  box-shadow: 0 24px 48px rgba(4, 12, 32, 0.35);
}

.page-faq .faq-hero__badge {
  position: absolute;
  right: 18px;
  bottom: 18px;
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.3;
  text-align: center;
  color: var(--c-primary);
  background: var(--grad-speed);
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(255, 107, 53, 0.35);
  letter-spacing: 0.04em;
}

/* ====== 分类快捷入口 ====== */
.page-faq .faq-cats {
  position: relative;
  z-index: 3;
  margin-top: -40px;
}

.page-faq .faq-cats__list {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 var(--content-gutter);
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.page-faq .faq-cats__link {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 48px;
  padding: 10px 14px;
  background: var(--faq-glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.9);
  border-radius: 14px;
  box-shadow: var(--faq-shadow);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 14px;
  color: var(--c-primary);
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.page-faq .faq-cats__link:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(10, 30, 63, 0.14);
  background: #fff;
}

.page-faq .faq-cats__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-accent);
  white-space: nowrap;
}

/* ====== FAQ 主体布局 ====== */
.page-faq .faq-main {
  padding: 56px 0 64px;
}

.page-faq .faq-main__grid {
  display: grid;
  gap: 28px;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 var(--content-gutter);
}

/* ====== 侧边锚点导航 ====== */
.page-faq .faq-side {
  background: var(--grad-ocean);
  border-radius: 16px;
  padding: 20px;
  color: #fff;
  box-shadow: 0 16px 40px rgba(10, 30, 63, 0.2);
}

.page-faq .faq-side__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-neon);
}

.page-faq .faq-side__nav {
  display: grid;
  gap: 4px;
}

.page-faq .faq-side__link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 10px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.88);
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.page-faq .faq-side__link span {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-accent);
}

.page-faq .faq-side__link:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateX(4px);
  color: #fff;
}

.page-faq .faq-side__tip {
  margin-top: 20px;
  padding: 14px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  font-size: 13px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.78);
}

.page-faq .faq-side__tip p {
  margin: 0;
}

/* ====== FAQ 章节通用 ====== */
.page-faq .faq-content {
  min-width: 0;
  display: grid;
  gap: 0;
}

.page-faq .faq-section {
  margin-bottom: 56px;
  scroll-margin-top: 88px;
}

.page-faq .faq-section__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 14px;
  margin-bottom: 22px;
  border-bottom: 3px solid var(--c-primary);
}

.page-faq .faq-section__index {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--c-accent);
}

.page-faq .faq-section__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 28px;
  line-height: 1.2;
  color: var(--c-primary);
}

/* ====== 手风琴 ====== */
.page-faq .faq-acc {
  display: grid;
  gap: 12px;
}

.page-faq .faq-acc__item {
  background: var(--faq-glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.92);
  border-radius: 14px;
  box-shadow: 0 4px 16px rgba(10, 30, 63, 0.06);
  overflow: hidden;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.page-faq .faq-acc__item:hover {
  box-shadow: 0 10px 28px rgba(10, 30, 63, 0.1);
  transform: translateY(-2px);
}

.page-faq .faq-acc__sum {
  display: grid;
  grid-template-columns: 44px 1fr 24px;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-body);
}

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

.page-faq .faq-acc__index {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--c-accent);
  border: 1px solid rgba(255, 107, 53, 0.35);
  border-radius: 8px;
  padding: 4px 0;
  text-align: center;
  background: rgba(255, 107, 53, 0.08);
}

.page-faq .faq-acc__question {
  font-weight: 700;
  font-size: 15px;
  line-height: 1.5;
  color: var(--c-primary);
}

.page-faq .faq-acc__icon {
  position: relative;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--grad-speed);
}

.page-faq .faq-acc__icon::before,
.page-faq .faq-acc__icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: #fff;
  border-radius: 2px;
}

.page-faq .faq-acc__icon::before {
  width: 10px;
  height: 2px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-acc__icon::after {
  width: 2px;
  height: 10px;
  transform: translate(-50%, -50%);
  transition: transform 0.25s ease;
}

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

.page-faq .faq-acc__ans {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transform: translateY(-4px);
  padding: 0 18px;
  transition: max-height 0.35s ease, opacity 0.3s ease, transform 0.3s ease, padding 0.3s ease;
}

.page-faq .faq-acc__item[open] .faq-acc__ans {
  max-height: 360px;
  opacity: 1;
  transform: translateY(0);
  padding: 0 18px 18px;
}

.page-faq .faq-acc__inner {
  border-top: 1px solid rgba(10, 30, 63, 0.08);
  padding-top: 14px;
}

.page-faq .faq-acc__inner p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-muted);
}

/* ====== 分类提示卡 ====== */
.page-faq .faq-guide {
  display: grid;
  gap: 20px;
  margin-bottom: 56px;
  padding: 24px;
  background: linear-gradient(135deg, rgba(10, 30, 63, 0.97) 0%, rgba(27, 79, 114, 0.97) 100%);
  border-radius: 18px;
  color: #fff;
  box-shadow: 0 16px 40px rgba(10, 30, 63, 0.2);
}

.page-faq .faq-guide__img img {
  display: block;
  width: 100%;
  max-width: 200px;
  height: auto;
  border-radius: 14px;
  margin: 0 auto;
}

.page-faq .faq-guide__kicker {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--c-neon);
}

.page-faq .faq-guide__text h2 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 22px;
  line-height: 1.3;
  color: #fff;
}

.page-faq .faq-guide__text p {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.8);
}

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

/* ====== 联系信息卡 ====== */
.page-faq .faq-contact {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 20px;
  padding: 18px;
  background: rgba(10, 30, 63, 0.04);
  border: 1px solid rgba(10, 30, 63, 0.08);
  border-radius: 14px;
}

.page-faq .faq-contact__item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 10px 12px;
  background: #fff;
  border-radius: 10px;
  border-left: 3px solid var(--c-accent);
}

.page-faq .faq-contact__item .contact-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--c-muted);
  text-transform: uppercase;
}

.page-faq .faq-contact__item .contact-value {
  font-size: 14px;
  font-weight: 700;
  color: var(--c-primary);
  word-break: break-all;
}

/* ====== 相关推荐 ====== */
.page-faq .faq-reco {
  padding: 56px var(--content-gutter) 64px;
  background: var(--grad-ocean);
}

.page-faq .faq-reco__grid {
  display: grid;
  gap: 16px;
  max-width: var(--container-w);
  margin: 0 auto;
}

.page-faq .faq-reco__card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 16px;
  color: #fff;
  text-decoration: none;
  transition: transform 0.2s ease, background 0.2s ease;
}

.page-faq .faq-reco__card:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, 0.12);
}

.page-faq .faq-reco__tag {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--c-neon);
}

.page-faq .faq-reco__card h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 22px;
  line-height: 1.3;
  color: #fff;
}

.page-faq .faq-reco__card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.78);
}

.page-faq .faq-reco__more {
  margin-top: 6px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  color: var(--c-accent);
}

/* ====== 响应式 ====== */
@media (min-width: 700px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: 5fr 7fr;
    align-items: center;
    padding: 64px var(--content-gutter) 104px;
  }

  .page-faq .faq-cats__list {
    grid-template-columns: repeat(5, 1fr);
    gap: 12px;
  }

  .page-faq .faq-cats__link {
    min-height: 56px;
    justify-content: center;
    font-size: 13px;
  }

  .page-faq .faq-guide {
    grid-template-columns: 200px 1fr;
    align-items: center;
    padding: 32px;
  }

  .page-faq .faq-contact {
    grid-template-columns: 1fr 1fr 1fr 1fr;
  }

  .page-faq .faq-reco__grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-main {
    padding: 72px 0 80px;
  }

  .page-faq .faq-main__grid {
    grid-template-columns: 260px 1fr;
    gap: 48px;
    align-items: start;
  }

  .page-faq .faq-side {
    background: transparent;
    padding: 0;
    box-shadow: none;
  }

  .page-faq .faq-side__sticky {
    position: sticky;
    top: calc(var(--header-h) + 16px);
    padding: 24px;
    background: var(--grad-ocean);
    border-radius: 16px;
    color: #fff;
    box-shadow: 0 16px 40px rgba(10, 30, 63, 0.2);
  }

  .page-faq .faq-hero__title {
    font-size: 5.2rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}