.page-faq {
  --faq-laser: rgba(0, 255, 136, 0.12);
  --faq-border: rgba(0, 255, 136, 0.4);
  --faq-muted: rgba(247, 243, 236, 0.72);
  background: var(--color-cream);
  color: var(--color-ink);
  scroll-behavior: smooth;
}

/* ===== 帮助中心首屏 ===== */
.page-faq .faq-hero {
  background: var(--color-bg-deep);
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-height) + clamp(28px, 5vw, 56px)) 0 clamp(48px, 7vw, 72px);
}
.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(var(--faq-laser) 1px, transparent 1px),
    linear-gradient(90deg, var(--faq-laser) 1px, transparent 1px);
  background-size: 46px 46px;
  pointer-events: none;
}
.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -120px;
  top: -80px;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 255, 136, 0.22), transparent 68%);
  pointer-events: none;
}
.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 36px;
  align-items: center;
}
.page-faq .faq-hero__content {
  min-width: 0;
}
.page-faq .faq-hero .breadcrumb {
  margin-bottom: 22px;
}
.page-faq .faq-hero .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.875rem;
}
.page-faq .faq-hero .breadcrumb__list li {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(247, 243, 236, 0.6);
}
.page-faq .faq-hero .breadcrumb__list li:not(:last-child)::after {
  content: "/";
  color: rgba(247, 243, 236, 0.4);
}
.page-faq .faq-hero .breadcrumb__list a {
  color: rgba(247, 243, 236, 0.78);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
}
.page-faq .faq-hero .breadcrumb__list a:hover {
  color: var(--color-green);
}
.page-faq .faq-hero__label {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.page-faq .faq-hero__label .section-label {
  margin: 0;
}
.page-faq .faq-hero__version {
  font-family: var(--font-data);
  font-size: 0.875rem;
  line-height: 1;
  color: var(--color-green);
  background: rgba(0, 255, 136, 0.1);
  border: 1px solid rgba(0, 255, 136, 0.35);
  border-radius: var(--radius-pill);
  padding: 5px 12px;
}
.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4.5vw, 3rem);
  line-height: 1.25;
  color: var(--color-cream);
  margin: 0 0 18px;
  letter-spacing: 0.01em;
}
.page-faq .faq-hero__lead {
  color: var(--faq-muted);
  font-size: 1rem;
  line-height: 1.8;
  max-width: 34em;
  margin: 0 0 28px;
}
.page-faq .faq-hero__media .image-frame {
  border-radius: var(--radius-lg);
  aspect-ratio: 16 / 10;
  overflow: hidden;
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.35);
}
.page-faq .faq-hero__media .image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: inherit;
}

/* ===== 快速定位标签 ===== */
.page-faq .faq-lookup {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(0, 255, 136, 0.3);
  background: rgba(0, 255, 136, 0.06);
}
.page-faq .faq-lookup__icon {
  font-size: 1.5rem;
  line-height: 1;
  color: var(--color-green);
}
.page-faq .faq-lookup__hint {
  font-size: 0.875rem;
  color: rgba(247, 243, 236, 0.7);
  margin-right: 4px;
}
.page-faq .faq-lookup__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.page-faq .faq-lookup__tags a {
  font-size: 0.875rem;
  color: var(--color-cream);
  text-decoration: none;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(247, 243, 236, 0.25);
  transition: border-color var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out);
}
.page-faq .faq-lookup__tags a:hover {
  border-color: var(--color-green);
  color: var(--color-green);
}

/* ===== 快速导航卡片 ===== */
.page-faq .faq-quicknav {
  position: relative;
  z-index: 2;
  margin-top: -36px;
}
.page-faq .faq-quicknav__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.page-faq .faq-quicknav__item {
  background: var(--color-cream);
  border-radius: var(--radius-md);
  box-shadow: 0 12px 32px rgba(10, 30, 63, 0.18);
  text-decoration: none;
  padding: 20px 20px 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: transform var(--duration-fast) var(--ease-out), box-shadow var(--duration-mid) var(--ease-out);
}
.page-faq .faq-quicknav__item:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(10, 30, 63, 0.24);
}
.page-faq .faq-quicknav__num {
  font-family: var(--font-data);
  font-size: 1.4rem;
  font-weight: 800;
  line-height: 1;
  color: var(--color-bg-deep);
  background: var(--color-green);
  border-radius: var(--radius-sm);
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.page-faq .faq-quicknav__title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  line-height: 1.4;
  color: var(--color-ink);
  margin: 4px 0 0;
}
.page-faq .faq-quicknav__desc {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-slate);
  margin: 0;
}

/* ===== 主布局 ===== */
.page-faq .faq-layout {
  display: grid;
  gap: 28px;
  padding: clamp(28px, 5vw, 56px) 0;
}
.page-faq .faq-list {
  display: grid;
  gap: clamp(32px, 5vw, 56px);
  min-width: 0;
}

/* ===== 侧边栏 ===== */
.page-faq .faq-sidebar {
  background: var(--color-bg-deep);
  border: 1px solid var(--faq-border);
  border-radius: var(--radius-md);
  padding: 24px;
  display: grid;
  gap: 24px;
  box-shadow: 0 16px 40px rgba(10, 30, 63, 0.2);
  align-self: start;
}
.page-faq .faq-sidebar__label {
  font-family: var(--font-data);
  font-size: 0.875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-green);
  margin: 0 0 12px;
}
.page-faq .faq-sidebar__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}
.page-faq .faq-sidebar__list a {
  display: block;
  font-size: 0.9375rem;
  line-height: 1.4;
  color: var(--color-cream);
  background: rgba(247, 243, 236, 0.06);
  border: 1px solid rgba(247, 243, 236, 0.12);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  text-decoration: none;
  transition: border-color var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out);
}
.page-faq .faq-sidebar__list a:hover {
  border-color: var(--color-green);
  color: var(--color-green);
}
.page-faq .faq-sidebar__note {
  border-top: 1px solid rgba(247, 243, 236, 0.12);
  padding-top: 20px;
  display: grid;
  gap: 10px;
}
.page-faq .faq-sidebar__note-title {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  color: var(--color-cream);
  margin: 0;
}
.page-faq .faq-sidebar__note-text {
  font-size: 0.875rem;
  line-height: 1.6;
  color: rgba(247, 243, 236, 0.72);
  margin: 0;
}
.page-faq .faq-sidebar__stats {
  border-top: 1px solid rgba(247, 243, 236, 0.12);
  padding-top: 20px;
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.page-faq .faq-sidebar__stats-num {
  font-family: var(--font-data);
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1;
  color: var(--color-green);
  background: rgba(0, 255, 136, 0.1);
  border-radius: var(--radius-sm);
  padding: 4px 10px;
}
.page-faq .faq-sidebar__stats-label {
  font-size: 0.875rem;
  color: rgba(247, 243, 236, 0.78);
}

/* ===== 分类标题 ===== */
.page-faq .faq-category {
  scroll-margin-top: calc(var(--header-height) + 20px);
}
.page-faq .faq-category__head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}
.page-faq .faq-category__head .tag {
  background: var(--color-bg-deep);
  color: var(--color-green);
  border: 1px solid var(--faq-border);
  border-radius: var(--radius-pill);
  font-family: var(--font-data);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  padding: 4px 14px;
}
.page-faq .faq-category__head .tag--orange {
  background: var(--color-orange);
  color: var(--color-cream);
  border-color: var(--color-orange);
}
.page-faq .faq-category__title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  line-height: 1.3;
  color: var(--color-ink);
  margin: 0;
}

/* ===== 手风琴 ===== */
.page-faq .faq-accordion {
  display: grid;
  gap: 12px;
}
.page-faq .faq-item {
  background: var(--color-gray);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--duration-fast) var(--ease-out), box-shadow var(--duration-mid) var(--ease-out);
}
.page-faq .faq-item[open] {
  border-color: var(--color-green);
  box-shadow: 0 8px 24px rgba(10, 30, 63, 0.14);
}
.page-faq .faq-item summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  user-select: none;
}
.page-faq .faq-item summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item__num {
  font-family: var(--font-data);
  font-size: 1.125rem;
  font-weight: 800;
  line-height: 1;
  color: var(--color-green);
  background: var(--color-bg-deep);
  border-radius: var(--radius-sm);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.page-faq .faq-item__question {
  font-weight: 600;
  line-height: 1.5;
  color: var(--color-ink);
  flex: 1;
  min-width: 0;
}
.page-faq .faq-item__icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid rgba(13, 43, 69, 0.3);
  position: relative;
  flex-shrink: 0;
}
.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 10px;
  height: 2px;
  background: var(--color-ink);
  border-radius: 2px;
  transform: translate(-50%, -50%);
  transition: transform var(--duration-mid) var(--ease-out);
}
.page-faq .faq-item__icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}
.page-faq .faq-item[open] .faq-item__icon::after {
  transform: translate(-50%, -50%) rotate(0deg);
}
.page-faq .faq-item__body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--duration-mid) var(--ease-out);
}
.page-faq .faq-item[open] .faq-item__body {
  grid-template-rows: 1fr;
}
.page-faq .faq-item__body p {
  overflow: hidden;
  min-height: 0;
  margin: 0;
  padding: 0 18px 20px;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--color-slate);
}
.page-faq .faq-item__body strong {
  color: var(--color-ink);
  background: linear-gradient(transparent 62%, rgba(0, 255, 136, 0.45) 62%);
  padding: 0 2px;
  font-weight: 700;
}

/* ===== 下载插图 ===== */
.page-faq .faq-figure {
  margin-top: 24px;
  background: var(--color-bg-deep);
  border: 1px solid var(--faq-border);
  border-radius: var(--radius-lg);
  padding: clamp(16px, 3vw, 28px);
  display: grid;
  gap: 16px;
  align-items: center;
}
.page-faq .faq-figure .image-frame {
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-md);
  overflow: hidden;
  width: 100%;
  max-width: 300px;
}
.page-faq .faq-figure .image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: inherit;
}
.page-faq .faq-figure figcaption {
  color: var(--faq-muted);
  font-size: 0.9375rem;
  line-height: 1.7;
  margin: 0;
}
.page-faq .faq-figure figcaption::before {
  content: "";
  display: block;
  width: 34px;
  height: 3px;
  background: var(--color-green);
  border-radius: 999px;
  margin-bottom: 12px;
}

/* ===== 联系卡片 ===== */
.page-faq .faq-contact-card {
  position: relative;
  margin-top: 28px;
  padding: clamp(20px, 4vw, 32px);
  background: var(--color-bg-deep);
  border: 1px solid var(--color-green);
  border-radius: var(--radius-lg);
  color: var(--color-cream);
  display: grid;
  gap: 16px;
  overflow: hidden;
}
.page-faq .faq-contact-card__ring {
  position: absolute;
  right: -70px;
  top: -70px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 255, 136, 0.24), transparent 66%);
  pointer-events: none;
}
.page-faq .faq-contact-card__label {
  font-family: var(--font-data);
  font-size: 0.9375rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-green);
  margin: 0;
  position: relative;
}
.page-faq .faq-contact-card__rows {
  display: grid;
  gap: 12px;
  position: relative;
}
.page-faq .faq-contact-card__row {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 12px;
  align-items: baseline;
  font-size: 0.9375rem;
  line-height: 1.6;
}
.page-faq .faq-contact-card__row span:first-child {
  color: rgba(247, 243, 236, 0.6);
  font-size: 0.875rem;
}
.page-faq .faq-contact-card__row a {
  color: var(--color-cream);
  text-decoration: none;
  font-weight: 600;
  border-bottom: 1px solid rgba(0, 255, 136, 0.4);
  transition: color var(--duration-fast) var(--ease-out), border-color var(--duration-fast) var(--ease-out);
}
.page-faq .faq-contact-card__row a:hover {
  color: var(--color-green);
  border-color: var(--color-green);
}
.page-faq .faq-contact-card__note {
  position: relative;
  font-size: 0.875rem;
  line-height: 1.6;
  color: rgba(247, 243, 236, 0.68);
  border-top: 1px solid rgba(247, 243, 236, 0.14);
  padding-top: 14px;
  margin: 0;
}

/* ===== 底部帮助CTA ===== */
.page-faq .faq-help-cta {
  background: var(--color-ink);
  padding: clamp(40px, 7vw, 72px) 0;
  position: relative;
  overflow: hidden;
}
.page-faq .faq-help-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 85% 20%, rgba(0, 255, 136, 0.16), transparent 42%),
    linear-gradient(var(--faq-laser) 1px, transparent 1px);
  background-size: 100% 100%, 44px 44px;
  pointer-events: none;
}
.page-faq .faq-help-cta__inner {
  position: relative;
  display: grid;
  gap: 28px;
  align-items: center;
}
.page-faq .faq-help-cta__title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  line-height: 1.3;
  color: var(--color-cream);
  margin: 0 0 8px;
}
.page-faq .faq-help-cta__text {
  color: var(--faq-muted);
  font-size: 0.9375rem;
  line-height: 1.7;
  margin: 0;
  max-width: 40em;
}
.page-faq .faq-help-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ===== 桌面端布局 ===== */
@media (min-width: 720px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: 7fr 5fr;
    gap: 48px;
  }
  .page-faq .faq-figure {
    grid-template-columns: minmax(200px, 2fr) 3fr;
    gap: 24px;
  }
  .page-faq .faq-quicknav__grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
  }
  .page-faq .faq-help-cta__inner {
    grid-template-columns: 1fr auto;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(240px, 3fr) 9fr;
    gap: 48px;
    align-items: start;
  }
  .page-faq .faq-sidebar {
    position: sticky;
    top: calc(var(--header-height) + 24px);
  }
  .page-faq .faq-sidebar__list {
    grid-template-columns: 1fr;
    gap: 6px;
  }
  .page-faq .faq-sidebar__list a {
    background: transparent;
    border-color: transparent;
    padding: 6px 10px;
  }
  .page-faq .faq-sidebar__list a:hover {
    border-color: var(--color-green);
  }
  .page-faq .faq-contact-card__row {
    grid-template-columns: 100px 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

.page-faq summary:focus-visible,
.page-faq a:focus-visible {
  outline: 2px solid var(--color-green);
  outline-offset: 3px;
}