.page-faq {
  background: var(--color-cream);
  color: var(--color-ink);
  font-family: var(--font-body);
}

/* Hero 区域 */
.page-faq .faq-hero {
  background: var(--color-primary);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}
.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  right: -40px;
  top: -40px;
  width: 220px;
  height: 220px;
  background: var(--color-accent);
  opacity: 0.14;
  transform: rotate(15deg);
  clip-path: polygon(25% 0, 100% 0, 75% 100%, 0 100%);
  pointer-events: none;
}
.page-faq .faq-hero-inner,
.page-faq .faq-hero-band,
.page-faq .faq-hero-index {
  position: relative;
  z-index: 1;
}
.page-faq .faq-hero-inner {
  padding-top: 32px;
  padding-bottom: 32px;
}
.page-faq .faq-hero-copy {
  max-width: 680px;
}
.page-faq .faq-hero .breadcrumb-list {
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
}
.page-faq .faq-hero .breadcrumb-item {
  color: rgba(255, 255, 255, 0.7);
}
.page-faq .faq-hero .breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin-right: 8px;
  color: rgba(255, 255, 255, 0.45);
}
.page-faq .faq-hero .breadcrumb-item a {
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
  transition: color 0.2s ease;
}
.page-faq .faq-hero .breadcrumb-item a:hover {
  color: var(--color-accent);
}
.page-faq .faq-hero .breadcrumb-item[aria-current="page"] {
  color: var(--color-accent);
}
.page-faq .faq-eyebrow {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
}
.page-faq .faq-hero h1 {
  margin: 0 0 14px;
  font-family: var(--font-heading);
  font-size: 2.25rem;
  line-height: 1.15;
}
.page-faq .faq-hero-desc {
  margin: 0;
  max-width: 60ch;
  font-size: 1rem;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.82);
}
.page-faq .faq-hero-band {
  width: 100%;
  overflow: hidden;
  line-height: 0;
}
.page-faq .faq-hero-band img {
  display: block;
  width: 100%;
  height: 120px;
  object-fit: cover;
}
.page-faq .faq-hero-index {
  background: var(--color-primary-dark);
  border-top: 1px solid rgba(201, 162, 39, 0.3);
  border-bottom: 1px solid rgba(201, 162, 39, 0.3);
}
.page-faq .faq-hero-index-inner {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-top: 14px;
  padding-bottom: 14px;
  scrollbar-width: thin;
}
.page-faq .faq-hero-index-link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 999px;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}
.page-faq .faq-hero-index-link span {
  color: var(--color-accent);
}
.page-faq .faq-hero-index-link:hover,
.page-faq .faq-hero-index-link:focus-visible {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-primary-dark);
  outline: none;
}
.page-faq .faq-hero-index-link:hover span,
.page-faq .faq-hero-index-link:focus-visible span {
  color: var(--color-primary-dark);
}

/* 页面布局 */
.page-faq .faq-layout {
  padding-top: 40px;
  padding-bottom: 72px;
}

/* 侧边索引 */
.page-faq .faq-sidebar {
  display: none;
}
.page-faq .faq-sidebar-label {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-secondary);
}
.page-faq .faq-sidebar-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-left: 3px solid transparent;
  color: var(--color-primary);
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}
.page-faq .faq-sidebar-link:hover,
.page-faq .faq-sidebar-link:focus-visible {
  background: rgba(255, 255, 255, 0.75);
  border-left-color: var(--color-accent);
  outline: none;
  color: var(--color-primary);
}
.page-faq .faq-sidebar-num {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-accent);
}
.page-faq .faq-sidebar-note {
  margin-top: 24px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(11, 61, 46, 0.1);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}
.page-faq .faq-sidebar-note p {
  margin: 0 0 14px;
  font-size: 0.875rem;
  line-height: 1.6;
}

/* 问答主区 */
.page-faq .faq-main {
  min-width: 0;
}
.page-faq .faq-section {
  margin-bottom: 52px;
  scroll-margin-top: calc(var(--header-h) + 24px);
}
.page-faq .faq-section:last-child {
  margin-bottom: 0;
}
.page-faq .faq-section-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 12px;
  margin-bottom: 20px;
  border-bottom: 2px solid rgba(11, 61, 46, 0.12);
}
.page-faq .faq-section-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: var(--color-primary);
  color: var(--color-white);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 700;
  clip-path: polygon(8px 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
}
.page-faq .faq-section-header h2 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  line-height: 1.2;
}
.page-faq .faq-tag-crimson {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  background: var(--color-secondary);
  color: var(--color-white);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  clip-path: polygon(6px 0, 100% 0, calc(100% - 6px) 100%, 0 100%);
  white-space: nowrap;
}

/* 手风琴列表 */
.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.page-faq .faq-item {
  background: var(--color-white);
  border: 1px solid rgba(11, 61, 46, 0.1);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
}
.page-faq .faq-item:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-card-hover);
}
.page-faq .faq-item summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  cursor: pointer;
  user-select: none;
}
.page-faq .faq-item summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item summary:hover,
.page-faq .faq-item summary:focus-visible {
  background: rgba(201, 162, 39, 0.08);
  outline: none;
}
.page-faq .faq-q-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 34px;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(11, 61, 46, 0.08);
  color: var(--color-primary);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 700;
}
.page-faq .faq-q-text {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--color-ink);
}
.page-faq .faq-q-icon {
  position: relative;
  flex: 0 0 26px;
  width: 26px;
  height: 26px;
  margin-left: auto;
  border-radius: 50%;
  background: var(--color-primary);
}
.page-faq .faq-q-icon::before,
.page-faq .faq-q-icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 11px;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transform: translate(-50%, -50%);
  transition: transform 0.25s ease, opacity 0.25s ease;
}
.page-faq .faq-q-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}
.page-faq .faq-item[open] .faq-q-icon::after {
  opacity: 0;
  transform: translate(-50%, -50%) rotate(0deg);
}
.page-faq .faq-answer {
  padding: 0 20px 20px;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: rgba(26, 26, 26, 0.85);
}
.page-faq .faq-answer p {
  margin: 0;
}
.page-faq .faq-answer a {
  color: var(--color-secondary);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s ease;
}
.page-faq .faq-answer a:hover {
  color: var(--color-accent);
}

/* 功能操作图示 */
.page-faq .faq-guide-visual {
  margin-bottom: 16px;
  overflow: hidden;
  border: 1px solid rgba(11, 61, 46, 0.12);
  border-radius: var(--radius);
  line-height: 0;
}
.page-faq .faq-guide-visual img {
  display: block;
  width: 100%;
  height: auto;
}

/* 联系卡片 */
.page-faq .faq-contact-card {
  background: var(--color-white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card-hover);
  overflow: hidden;
}
.page-faq .faq-contact-copy {
  padding: 24px;
}
.page-faq .faq-contact-copy > p {
  margin: 0 0 18px;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: rgba(26, 26, 26, 0.85);
}
.page-faq .faq-contact-note {
  margin-top: 16px !important;
  margin-bottom: 14px !important;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-sage);
}
.page-faq .faq-contact-list {
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}
.page-faq .faq-contact-list li {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
  padding: 10px 0;
  border-bottom: 1px dashed rgba(11, 61, 46, 0.18);
}
.page-faq .faq-contact-label {
  min-width: 52px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--color-secondary);
}
.page-faq .faq-contact-list span:last-child {
  color: var(--color-ink);
  word-break: break-word;
}
.page-faq .faq-contact-visual {
  line-height: 0;
}
.page-faq .faq-contact-visual img {
  display: block;
  width: 100%;
  height: 160px;
  object-fit: cover;
}

/* 返回顶部 */
.page-faq .back-to-top {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 90;
  width: 52px;
  height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--color-accent);
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-white);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  text-decoration: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease, background 0.2s ease;
}
.page-faq .back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.page-faq .back-to-top:hover,
.page-faq .back-to-top:focus-visible {
  background: var(--color-accent);
  color: var(--color-primary-dark);
  outline: none;
}

/* 平板及以上 */
@media (min-width: 640px) {
  .page-faq .faq-answer {
    padding-left: 68px;
  }
  .page-faq .faq-contact-copy {
    padding: 32px;
  }
}

/* 桌面端 */
@media (min-width: 961px) {
  .page-faq .faq-hero h1 {
    font-size: 3rem;
  }
  .page-faq .faq-hero-inner {
    padding-top: 44px;
    padding-bottom: 44px;
  }
  .page-faq .faq-hero-band img {
    height: 200px;
  }
  .page-faq .faq-hero-index-inner {
    justify-content: flex-start;
  }
  .page-faq .faq-layout {
    display: grid;
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 48px;
    padding-top: 56px;
    padding-bottom: 88px;
  }
  .page-faq .faq-sidebar {
    display: block;
    position: sticky;
    top: calc(var(--header-h) + 24px);
    align-self: start;
  }
  .page-faq .faq-section {
    margin-bottom: 64px;
  }
  .page-faq .faq-contact-card {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
  }
  .page-faq .faq-contact-copy {
    padding: 36px;
  }
  .page-faq .faq-contact-visual img {
    height: 100%;
    min-height: 280px;
  }
  .page-faq .back-to-top {
    right: 32px;
    bottom: 32px;
  }
}

/* 动效偏好 */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-hero-index-link,
  .page-faq .faq-item,
  .page-faq .faq-q-icon::before,
  .page-faq .faq-q-icon::after,
  .page-faq .faq-answer a,
  .page-faq .faq-sidebar-link,
  .page-faq .back-to-top {
    transition: none !important;
  }
}