.page-faq {
  overflow-x: clip;
}

/* ===== 首屏封面 ===== */
.page-faq .faq-hero {
  position: relative;
  padding: 2.5rem 0 2.25rem;
  overflow: hidden;
  background:
    linear-gradient(130deg, rgba(51,255,153,0.1) 0%, transparent 42%),
    var(--color-bg-elevated);
}

.page-faq .faq-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(230,237,243,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(230,237,243,0.04) 1px, transparent 1px);
  background-size: 26px 26px;
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 30%;
  height: 100%;
  background: repeating-linear-gradient(
    -55deg,
    transparent 0 10px,
    rgba(51,255,153,0.08) 10px 11px
  );
  pointer-events: none;
}

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

.page-faq .faq-hero__kick {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  margin-bottom: 1rem;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 1.5rem;
  align-items: end;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-sans);
  font-size: clamp(2.2rem, 7vw, 4.4rem);
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  margin: 0.75rem 0 0;
}

.page-faq .faq-hero__lead {
  max-width: 35em;
  margin: 0 0 1.25rem;
  color: var(--color-text-muted);
  font-family: var(--font-serif);
  font-size: 0.98rem;
  line-height: 1.8;
  border-left: 2px solid var(--color-accent);
  padding-left: 1rem;
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  margin: 0;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}

.page-faq .faq-hero__meta div {
  display: flex;
  gap: 0.5rem;
  align-items: baseline;
  min-width: 0;
}

.page-faq .faq-hero__meta dt {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  white-space: nowrap;
}

.page-faq .faq-hero__meta dd {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-text);
  word-break: break-all;
}

.page-faq .breadcrumb {
  padding: 0;
}

/* ===== 分类导航 ===== */
.page-faq .faq-categories__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.page-faq .faq-category {
  position: relative;
  display: block;
  min-height: 148px;
  padding: 1.4rem 1.2rem 1rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  text-decoration: none;
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
  transition: transform var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
}

.page-faq .faq-category:hover {
  transform: translateY(-3px);
  border-color: var(--color-border-accent);
  background: var(--color-bg-elevated);
}

.page-faq .faq-category::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), transparent 60%);
}

.page-faq .faq-category__num {
  display: block;
  font-family: var(--font-sans);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 1rem;
  line-height: 1;
}

.page-faq .faq-category__name {
  font-family: var(--font-sans);
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0 0 0.4rem;
}

.page-faq .faq-category__desc {
  margin: 0;
  color: var(--color-text-muted);
  font-family: var(--font-sans);
  font-size: 0.8rem;
  line-height: 1.6;
}

.page-faq .faq-category__arrow {
  position: absolute;
  right: 1rem;
  bottom: 1rem;
  font-family: var(--font-sans);
  color: var(--color-accent);
  transition: transform var(--transition-fast);
}

.page-faq .faq-category:hover .faq-category__arrow {
  transform: translateX(4px);
}

/* ===== 热门问题 ===== */
.page-faq .faq-hot {
  position: relative;
  padding: 2rem 0 3rem;
  margin: 0 0 0.5rem;
  background: linear-gradient(180deg, transparent, var(--color-bg-elevated) 42%);
}

.page-faq .faq-hot::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-border) 60%, transparent);
}

.page-faq .faq-hot__inner {
  display: grid;
  gap: 1.5rem;
}

.page-faq .faq-hot__intro h2 {
  margin: 0.5rem 0 0.5rem;
}

.page-faq .faq-hot__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.page-faq .faq-hot__list a {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.9rem 1.1rem;
  background: rgba(16, 24, 43, 0.6);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-weight: 600;
  text-decoration: none;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.page-faq .faq-hot__list a::before {
  content: 'Q';
  flex: none;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--color-accent);
  border: 1px solid rgba(51, 255, 153, 0.4);
  transform: rotate(-8deg);
}

.page-faq .faq-hot__list a:hover {
  background: var(--color-bg-card);
  transform: translateX(4px);
}

/* ===== 全部问题 ===== */
.page-faq .faq-accordion {
  padding: 3rem 0 2rem;
}

.page-faq .faq-accordion__layout {
  margin-top: 2rem;
  display: grid;
  gap: 1.5rem;
  align-items: start;
}

.page-faq .faq-sidebar {
  position: relative;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  padding: 1.25rem 0.75rem 1rem;
}

.page-faq .faq-sidebar::before {
  content: '';
  position: absolute;
  top: -1px;
  left: -1px;
  width: 24px;
  height: 24px;
  border-top: 2px solid var(--color-accent);
  border-left: 2px solid var(--color-accent);
}

.page-faq .faq-sidebar__title {
  padding: 0 0.75rem 0.5rem;
  margin-bottom: 0.5rem;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  border-bottom: 1px solid var(--color-border);
}

.page-faq .faq-sidebar ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-sidebar a {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 0.75rem;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-fast), background var(--transition-fast);
}

.page-faq .faq-sidebar a::before {
  content: '';
  flex: none;
  width: 5px;
  height: 5px;
  background: var(--color-accent);
  transform: rotate(45deg);
}

.page-faq .faq-sidebar a:hover {
  color: var(--color-text);
  background: rgba(26, 36, 56, 0.7);
}

/* ===== FAQ 分组 ===== */
.page-faq .faq-group {
  display: grid;
  gap: 2rem;
}

.page-faq .faq-group__category {
  scroll-margin-top: 2rem;
}

.page-faq .faq-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--color-border);
}

.page-faq .faq-group__num {
  font-family: var(--font-sans);
  font-weight: 700;
  color: var(--color-accent);
}

.page-faq .faq-group__head h3 {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.2rem;
  font-weight: 700;
}

.page-faq .faq-group__more {
  margin-left: auto;
  padding: 0.2rem 0.5rem;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  color: var(--color-accent);
  text-decoration: none;
  border: 1px solid var(--color-border-accent);
  transition: background var(--transition-fast);
}

.page-faq .faq-group__more:hover {
  background: rgba(51, 255, 153, 0.08);
}

.page-faq .faq-group__stat {
  margin-left: auto;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
}

/* ===== 手风琴 ===== */
.page-faq .faq-item {
  margin-bottom: 0.75rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  position: relative;
  transition: border-color var(--transition-fast);
}

.page-faq .faq-item[open] {
  border-color: var(--color-border-accent);
}

.page-faq .faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1.1rem 1.25rem 1.1rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--color-text);
}

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

.page-faq .faq-item summary::before {
  content: '';
  flex: none;
  width: 7px;
  height: 7px;
  background: var(--color-accent);
  transform: rotate(45deg);
}

.page-faq .faq-item summary::after {
  content: '+';
  margin-left: auto;
  font-size: 1.3rem;
  font-weight: 400;
  line-height: 1;
  color: var(--color-accent);
  transition: transform var(--transition-fast);
}

.page-faq .faq-item[open] summary::after {
  transform: rotate(45deg);
}

.page-faq .faq-item__body {
  padding: 0 1.25rem 1.25rem 2.15rem;
  color: var(--color-text-muted);
  font-family: var(--font-serif);
  font-size: 0.95rem;
  line-height: 1.75;
}

.page-faq .faq-item[open] .faq-item__body {
  animation: faqItemReveal 0.28s var(--ease-out);
}

@keyframes faqItemReveal {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item[open] .faq-item__body {
    animation: none;
  }
}

/* ===== 图文说明 ===== */
.page-faq .faq-figure {
  max-width: 520px;
  margin: 1rem 0 0;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-faq .faq-figure figcaption {
  padding: 0.5rem 0.75rem;
  font-family: var(--font-sans);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-border);
}

/* ===== 联系支持 ===== */
.page-faq .faq-contact {
  padding: 1.5rem 0 4rem;
}

.page-faq .faq-contact__panel {
  padding: 1.75rem 1.25rem;
}

.page-faq .faq-contact__heading h2 {
  margin: 0.5rem 0 0.5rem;
}

.page-faq .faq-contact__lead {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.page-faq .faq-contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin: 1.5rem 0;
  padding-top: 1.25rem;
  border-top: 1px solid var(--color-border);
}

.page-faq .faq-contact__item {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 0.5rem;
  min-height: 84px;
  padding: 1rem;
  background: rgba(10, 14, 26, 0.55);
  border: 1px solid var(--color-border);
}

.page-faq .faq-contact__label {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.page-faq .faq-contact__item a,
.page-faq .faq-contact__item > span:last-child {
  font-family: var(--font-sans);
  font-size: 0.88rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-text);
  text-decoration: none;
  word-break: break-all;
}

.page-faq .faq-contact__item a:hover {
  color: var(--color-accent);
}

.page-faq .faq-contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1rem;
}

.page-faq .faq-contact__note {
  margin: 1.25rem 0 0;
  font-size: 0.85rem;
}

/* ===== 平板适配 ===== */
@media (min-width: 720px) {
  .page-faq .faq-hero {
    padding: 4rem 0 3rem;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 3rem;
  }

  .page-faq .faq-hero h1 {
    font-size: 3rem;
  }

  .page-faq .faq-categories__grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
  }

  .page-faq .faq-contact__grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
  }

  .page-faq .faq-contact__panel {
    padding: 2.5rem;
  }
}

/* ===== 桌面适配 ===== */
@media (min-width: 960px) {
  .page-faq .faq-hero {
    padding: 6rem 0 3.5rem;
  }

  .page-faq .faq-hero h1 {
    font-size: clamp(3rem, 5vw, 4.8rem);
  }

  .page-faq .faq-hero__lead {
    font-size: 1.05rem;
  }

  .page-faq .faq-hot__inner {
    grid-template-columns: 1fr 1.1fr;
    align-items: end;
  }

  .page-faq .faq-accordion {
    padding: 4rem 0 2.5rem;
  }

  .page-faq .faq-accordion__layout {
    grid-template-columns: 220px 1fr;
    gap: 3rem;
  }

  .page-faq .faq-sidebar {
    position: sticky;
    top: 2rem;
  }

  .page-faq .faq-contact__grid {
    gap: 1.5rem;
  }
}