.page-faq {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  line-height: 1.7;
}

/* ===== Hero ===== */
.page-faq .faq-hero {
  padding: var(--space-6) var(--pad) var(--space-8);
}

.page-faq .faq-hero-inner {
  position: relative;
  overflow: hidden;
  max-width: var(--container);
  margin: 0 auto;
  padding: clamp(1.75rem, 4vw, 3.25rem);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-deep) 85%);
  border-radius: var(--radius-lg);
  color: var(--color-white);
}

.page-faq .faq-hero-inner::before {
  content: "";
  position: absolute;
  right: -4rem;
  top: -4rem;
  width: 14rem;
  height: 14rem;
  border-radius: 50%;
  background: rgba(255, 193, 7, 0.14);
}

.page-faq .faq-hero-inner::after {
  content: "";
  position: absolute;
  right: 3rem;
  bottom: -5rem;
  width: 10rem;
  height: 10rem;
  border-radius: 50%;
  background: rgba(0, 255, 127, 0.1);
}

.page-faq .faq-hero-inner > * {
  position: relative;
  z-index: 1;
}

.page-faq .breadcrumb {
  margin-bottom: var(--space-4);
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.875rem;
}

.page-faq .breadcrumb a {
  color: var(--color-white);
  text-decoration: none;
}

.page-faq .breadcrumb a:hover {
  text-decoration: underline;
}

.page-faq .breadcrumb-sep {
  margin: 0 0.375rem;
}

.page-faq .breadcrumb-current {
  color: var(--color-accent-alt);
}

.page-faq .faq-hero-inner .section-kicker,
.page-faq .faq-contact-inner .section-kicker {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-white);
  border-radius: var(--radius-pill);
  padding: 0.25rem 0.75rem;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-3);
}

.page-faq .faq-hero-title {
  margin: 0 0 var(--space-3);
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: clamp(1.75rem, 3.6vw, 3.25rem);
  line-height: 1.16;
  letter-spacing: -0.01em;
  max-width: 22ch;
}

.page-faq .faq-hero-desc {
  max-width: 60ch;
  margin: 0;
  color: rgba(255, 255, 255, 0.85);
  font-size: 1rem;
  line-height: 1.75;
}

/* ===== 主体布局 ===== */
.page-faq .faq-layout {
  padding: var(--space-4) var(--pad) var(--space-8);
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  gap: var(--space-6);
  align-items: start;
}

/* ===== 侧边栏 ===== */
.page-faq .faq-sidebar {
  background: var(--color-white);
  border-top: 4px solid var(--color-accent);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: var(--space-5);
}

.page-faq .faq-sidebar-label {
  margin: 0 0 var(--space-3);
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: 1rem;
  letter-spacing: 0.02em;
}

.page-faq .faq-filter {
  display: flex;
  gap: var(--space-2);
  overflow-x: auto;
  padding-bottom: var(--space-2);
  scrollbar-width: thin;
}

.page-faq .faq-filter .chip-filter {
  flex-shrink: 0;
}

.page-faq .chip-filter {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  border: 2px solid rgba(27, 95, 170, 0.35);
  background: var(--color-primary-soft);
  color: var(--color-primary);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 0.875rem;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.page-faq .chip-filter:hover {
  background: var(--color-white);
  border-color: var(--color-primary);
}

.page-faq .chip-filter.is-active,
.page-faq .chip-filter--active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-white);
}

.page-faq .chip-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.375rem;
  height: 1.375rem;
  padding: 0 0.3125rem;
  border-radius: var(--radius-pill);
  background: rgba(27, 95, 170, 0.14);
  font-family: var(--font-number);
  font-style: italic;
  font-size: 0.75rem;
}

.page-faq .chip-filter.is-active .chip-count,
.page-faq .chip-filter--active .chip-count {
  background: rgba(255, 255, 255, 0.22);
}

.page-faq .faq-anchors {
  display: grid;
  gap: var(--space-1);
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid rgba(26, 29, 33, 0.1);
}

.page-faq .faq-anchors a {
  color: var(--color-text);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 600;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-pill);
  transition: background 0.2s ease, color 0.2s ease;
}

.page-faq .faq-anchors a:hover {
  background: var(--color-primary-soft);
  color: var(--color-primary);
}

.page-faq .faq-sidebar-note {
  margin-top: var(--space-4);
  padding: var(--space-4);
  background: var(--color-bg);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  color: #47505A;
}

.page-faq .faq-sidebar-note p {
  margin: 0 0 var(--space-3);
}

.page-faq .faq-sidebar-note .btn {
  display: inline-flex;
}

/* ===== 问题列表 ===== */
.page-faq .faq-list {
  display: grid;
  gap: var(--space-3);
  min-width: 0;
}

.page-faq .faq-group-title {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  margin: var(--space-6) 0 var(--space-2);
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  line-height: 1.3;
}

.page-faq .faq-group-title:first-child {
  margin-top: 0;
}

.page-faq .faq-group-index {
  font-family: var(--font-number);
  font-style: italic;
  font-size: 0.875rem;
  color: var(--color-accent);
  font-weight: 700;
}

/* ===== 折叠卡片 ===== */
.page-faq .faq-card {
  background: var(--color-white);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-md);
  box-shadow: 0 2px 0 rgba(158, 43, 37, 0.14), 0 8px 24px rgba(26, 29, 33, 0.05);
  overflow: hidden;
}

.page-faq .faq-card summary {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-card summary:hover {
  background: var(--color-primary-soft);
}

.page-faq .faq-card[open] summary {
  border-bottom: 1px solid rgba(26, 29, 33, 0.06);
}

.page-faq .faq-num {
  flex-shrink: 0;
  width: 2.5rem;
  font-family: var(--font-number);
  font-style: italic;
  font-weight: 700;
  font-size: 0.875rem;
  color: var(--color-accent);
}

.page-faq .faq-question {
  flex: 1;
  font-weight: 700;
  font-size: 0.9375rem;
  line-height: 1.45;
}

.page-faq .faq-toggle {
  flex-shrink: 0;
  position: relative;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 50%;
  background: var(--color-white);
  border: 1px solid rgba(27, 95, 170, 0.25);
}

.page-faq .faq-toggle::before,
.page-faq .faq-toggle::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  border-radius: 2px;
  background: var(--color-primary);
  transform: translate(-50%, -50%);
}

.page-faq .faq-toggle::before {
  width: 0.625rem;
  height: 2px;
}

.page-faq .faq-toggle::after {
  width: 2px;
  height: 0.625rem;
  transition: transform 0.2s ease;
}

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

.page-faq .faq-card-body {
  padding: var(--space-4) var(--space-5) var(--space-5) calc(var(--space-5) + var(--space-3) + 2.5rem);
  color: #3A4148;
  font-size: 0.9375rem;
  line-height: 1.75;
}

.page-faq .faq-card-body p {
  margin: 0 0 var(--space-3);
}

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

.page-faq .faq-card-body strong {
  color: var(--color-accent-deep);
  font-weight: 700;
}

.page-faq .faq-card-body a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

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

/* ===== 图片 ===== */
.page-faq .faq-figure {
  margin: var(--space-4) 0 0;
  max-width: 560px;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-primary-soft);
}

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

.page-faq .faq-figure figcaption {
  padding: var(--space-2) var(--space-3);
  font-size: 0.8125rem;
  color: #55606B;
  background: var(--color-bg);
  line-height: 1.5;
}

.page-faq .faq-figure--square {
  max-width: 260px;
}

/* ===== 联系引导 ===== */
.page-faq .faq-contact-invite {
  padding: var(--space-8) var(--pad) var(--space-10);
}

.page-faq .faq-contact-inner {
  position: relative;
  overflow: hidden;
  max-width: var(--container);
  margin: 0 auto;
  padding: var(--space-8) var(--space-6);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-deep) 90%);
  border-radius: var(--radius-lg);
  text-align: center;
  color: var(--color-white);
}

.page-faq .faq-contact-inner::before {
  content: "";
  position: absolute;
  top: -6rem;
  right: -4rem;
  width: 16rem;
  height: 16rem;
  border-radius: 50%;
  background: rgba(255, 193, 7, 0.14);
}

.page-faq .faq-contact-inner::after {
  content: "";
  position: absolute;
  bottom: -7rem;
  left: -3rem;
  width: 14rem;
  height: 14rem;
  border-radius: 50%;
  background: rgba(0, 255, 127, 0.08);
}

.page-faq .faq-contact-inner > * {
  position: relative;
  z-index: 1;
}

.page-faq .faq-contact-title {
  margin: 0 0 var(--space-3);
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: clamp(1.5rem, 3.4vw, 2.5rem);
  line-height: 1.2;
}

.page-faq .faq-contact-desc {
  max-width: 44rem;
  margin: 0 auto var(--space-5);
  color: rgba(255, 255, 255, 0.85);
  font-size: 1rem;
  line-height: 1.75;
}

.page-faq .faq-contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: center;
  margin-bottom: var(--space-5);
}

.page-faq .faq-contact-actions .btn {
  border-radius: var(--radius-pill);
  padding: 0.625rem 1.375rem;
  font-weight: 700;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.page-faq .faq-contact-actions .btn:hover {
  transform: translateY(-2px);
}

.page-faq .faq-contact-actions .btn-accent {
  background: var(--color-accent);
  border: 2px solid var(--color-accent);
  color: var(--color-white);
  box-shadow: 0 4px 0 var(--color-accent-deep);
}

.page-faq .faq-contact-actions .btn-ghost {
  background: transparent;
  border: 2px solid rgba(255, 255, 255, 0.75);
  color: var(--color-white);
}

.page-faq .faq-contact-actions .btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
}

.page-faq .faq-contact-mail {
  margin: 0;
  font-family: var(--font-number);
  font-style: italic;
  font-weight: 700;
  color: var(--color-accent-alt);
  font-size: 1rem;
}

.page-faq .faq-trust {
  margin: var(--space-5) auto 0;
  max-width: 40rem;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.6);
}

/* ===== 桌面端布局 ===== */
@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(15rem, 18rem) minmax(0, 1fr);
    gap: var(--space-8);
  }

  .page-faq .faq-sidebar {
    position: sticky;
    top: var(--space-6);
  }

  .page-faq .faq-filter {
    display: grid;
    gap: var(--space-2);
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-filter .chip-filter {
    justify-content: flex-start;
    width: 100%;
  }

  .page-faq .faq-group-title {
    margin-top: var(--space-8);
  }

  .page-faq .faq-group-title:first-child {
    margin-top: 0;
  }

  .page-faq .faq-card-body {
    padding-right: var(--space-8);
  }
}