.page-faq {
  --faq-sidebar-w: clamp(240px, 26vw, 300px);
  --faq-bg-mist: #F1EDE5;
  --faq-hero-blue: #1B365D;
  --faq-hero-blue-deep: #162B4D;
  background: var(--c-rice);
  color: var(--c-plateau);
}

/* ===== Hero ===== */
.page-faq .faq-hero {
  background:
    linear-gradient(135deg, rgba(22, 43, 77, 0.98) 0%, rgba(27, 54, 93, 0.92) 55%, rgba(42, 107, 138, 0.82) 100%),
    repeating-linear-gradient(45deg, rgba(244, 241, 232, 0.035) 0 1px, transparent 1px 14px);
  color: var(--c-snow);
  padding: clamp(1.75rem, 4vw, 3.5rem) 0 0;
  border-bottom: 4px solid var(--c-red);
  position: relative;
  overflow: hidden;
}

.page-faq .faq-hero .breadcrumb-link {
  color: rgba(244, 241, 232, 0.66);
  transition: color 0.3s var(--ease);
}

.page-faq .faq-hero .breadcrumb-link:hover {
  color: var(--c-snow);
}

.page-faq .faq-hero .breadcrumb-link[aria-current="page"] {
  color: var(--c-yellow);
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: 2rem;
  margin-top: clamp(1.5rem, 3vw, 2.75rem);
  align-items: center;
}

.page-faq .faq-hero-copy {
  max-width: 760px;
}

.page-faq .faq-hero-kicker {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-yellow);
  margin: 0 0 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.page-faq .faq-hero-kicker::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--c-red);
  display: inline-block;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3.6vw + 0.4rem, 3rem);
  line-height: 1.25;
  color: var(--c-snow);
  margin: 0 0 1rem;
  letter-spacing: 0.01em;
  text-wrap: balance;
}

.page-faq .faq-hero-desc {
  font-size: clamp(0.95rem, 1.2vw, 1.05rem);
  line-height: 1.8;
  color: rgba(244, 241, 232, 0.85);
  margin: 0 0 1.75rem;
  max-width: 620px;
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-faq .faq-hero-actions .btn-outline {
  border-color: rgba(244, 241, 232, 0.55);
  color: var(--c-snow);
  background: transparent;
}

.page-faq .faq-hero-actions .btn-outline:hover {
  border-color: var(--c-yellow);
  color: var(--c-yellow);
  background: rgba(228, 168, 29, 0.12);
}

.page-faq .faq-hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: rgba(244, 241, 232, 0.16);
  border: 1px solid rgba(244, 241, 232, 0.16);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.18);
}

.page-faq .faq-stat {
  background: rgba(23, 46, 80, 0.72);
  padding: 1rem 0.9rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  min-width: 0;
}

.page-faq .faq-stat-value {
  font-family: var(--font-mono);
  font-size: clamp(1.25rem, 2.4vw, 1.75rem);
  font-weight: 700;
  color: var(--c-yellow);
  line-height: 1.1;
  white-space: nowrap;
}

.page-faq .faq-stat-label {
  font-size: var(--text-xs);
  line-height: 1.55;
  color: rgba(244, 241, 232, 0.72);
  letter-spacing: 0.04em;
}

.page-faq .faq-hero-figure {
  margin: clamp(2rem, 4vw, 3rem) 0 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(244, 241, 232, 0.2);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.22);
}

.page-faq .faq-hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
}

/* ===== 快速导航 ===== */
.page-faq .faq-quick-nav {
  background: var(--c-snow);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-float);
  padding: 1.25rem 1.5rem;
  margin-top: 2.5rem;
  margin-bottom: -3rem;
  position: relative;
  z-index: 4;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  border: 1px solid var(--border-subtle);
}

.page-faq .faq-quick-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-stone);
  padding-right: 1.25rem;
  border-right: 1px solid var(--border-subtle);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 2rem;
}

.page-faq .faq-quick-label::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-green);
  flex-shrink: 0;
}

.page-faq .faq-quick-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  flex: 1;
}

.page-faq .faq-quick-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.95rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-subtle);
  color: var(--c-plateau);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 500;
  transition: border-color 0.3s var(--ease), color 0.3s var(--ease), background 0.3s var(--ease), transform 0.3s var(--ease);
}

.page-faq .faq-quick-link::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--c-red);
  opacity: 0.7;
  flex-shrink: 0;
  transition: opacity 0.3s var(--ease);
}

.page-faq .faq-quick-link:hover {
  border-color: var(--c-red);
  color: var(--c-red);
  background: rgba(217, 66, 42, 0.06);
  transform: translateY(-2px);
}

.page-faq .faq-quick-link:hover::before {
  opacity: 1;
}

/* ===== 主体布局 ===== */
.page-faq .faq-layout {
  display: grid;
  gap: 2rem;
  margin-top: 4.5rem;
  padding-bottom: 4rem;
  align-items: start;
}

/* ===== 侧边栏 ===== */
.page-faq .faq-sidebar-inner {
  background: var(--c-snow);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-soft);
  position: static;
}

.page-faq .faq-sidebar-title {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-stone);
  margin: 0 0 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.page-faq .faq-sidebar-title::after {
  content: "";
  flex: 1;
  height: 1px;
  background: rgba(139, 125, 107, 0.22);
}

.page-faq .faq-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.page-faq .faq-index-link {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  color: var(--c-plateau);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 500;
  white-space: nowrap;
  transition: background 0.3s var(--ease), color 0.3s var(--ease), border-color 0.3s var(--ease), transform 0.3s var(--ease);
}

.page-faq .faq-index-num {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--c-red);
  border: 1px solid rgba(217, 66, 42, 0.28);
  border-radius: var(--radius-pill);
  padding: 0.14rem 0.42rem;
  line-height: 1;
  flex-shrink: 0;
  transition: background 0.3s var(--ease), color 0.3s var(--ease);
}

.page-faq .faq-index-link:hover {
  background: rgba(217, 66, 42, 0.06);
  color: var(--c-red);
  border-color: rgba(217, 66, 42, 0.18);
  transform: translateX(3px);
}

.page-faq .faq-index-link:hover .faq-index-num {
  background: var(--c-red);
  color: var(--c-snow);
}

.page-faq .faq-layout:has(#faq-entry:target) .faq-index-link[href="#faq-entry"],
.page-faq .faq-layout:has(#faq-update:target) .faq-index-link[href="#faq-update"],
.page-faq .faq-layout:has(#faq-review:target) .faq-index-link[href="#faq-review"],
.page-faq .faq-layout:has(#faq-device:target) .faq-index-link[href="#faq-device"],
.page-faq .faq-layout:has(#faq-contact:target) .faq-index-link[href="#faq-contact"] {
  color: var(--c-red);
  border-color: rgba(217, 66, 42, 0.22);
  background: rgba(217, 66, 42, 0.05);
}

.page-faq .faq-sidebar-note {
  margin-top: 1.25rem;
  padding: 1rem 0.9rem;
  background: var(--c-rice);
  border-left: 3px solid var(--c-yellow);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.page-faq .faq-sidebar-note-label {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-stone);
}

.page-faq .faq-sidebar-note-time {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-plateau);
}

.page-faq .faq-sidebar-note-tz {
  font-size: var(--text-xs);
  color: var(--c-stone);
}

.page-faq .faq-sidebar-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  margin-top: 1rem;
  padding: 0.65rem 1rem;
  border-radius: var(--radius-pill);
  background: var(--c-plateau);
  color: var(--c-snow);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  transition: background 0.3s var(--ease), transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.page-faq .faq-sidebar-cta:hover {
  background: var(--c-red);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(217, 66, 42, 0.25);
}

/* ===== FAQ 主内容 ===== */
.page-faq .faq-main {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  min-width: 0;
}

.page-faq .faq-group {
  padding: 2rem 1.5rem;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  background: transparent;
  scroll-margin-top: calc(var(--header-offset) + 1rem);
}

.page-faq .faq-group:nth-child(even) {
  background: var(--faq-bg-mist);
}

.page-faq .faq-group-heading {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1.1rem;
  border-bottom: 1px solid var(--border-subtle);
}

.page-faq .faq-group-index {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--c-red);
  border: 1px solid rgba(217, 66, 42, 0.35);
  border-radius: var(--radius-pill);
  padding: 0.32rem 0.66rem;
  min-width: 2.6rem;
  text-align: center;
  flex-shrink: 0;
  line-height: 1.2;
}

.page-faq .faq-group-title {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  line-height: 1.3;
  color: var(--c-plateau);
  margin: 0 0 0.25rem;
  letter-spacing: 0.01em;
}

.page-faq .faq-group-desc {
  font-size: var(--text-sm);
  color: var(--c-stone);
  margin: 0;
  line-height: 1.65;
}

/* ===== 手风琴定制 ===== */
.page-faq .faq-list {
  display: grid;
  gap: 0.9rem;
}

.page-faq .accordion-item {
  background: var(--c-snow);
  border: 1px solid var(--border-subtle);
  border-left: 3px solid transparent;
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.35s var(--ease), box-shadow 0.35s var(--ease), transform 0.35s var(--ease);
}

.page-faq .accordion-item:hover {
  border-color: rgba(217, 66, 42, 0.3);
  box-shadow: var(--shadow-soft);
}

.page-faq .accordion-trigger {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  width: 100%;
  padding: 1.05rem 1.15rem;
  background: transparent;
  border: 0;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--c-plateau);
  transition: color 0.3s var(--ease);
}

.page-faq .accordion-trigger:hover {
  color: var(--c-red);
}

.page-faq .faq-q-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--c-clay);
  transition: color 0.35s var(--ease), transform 0.35s var(--ease);
  width: 20px;
}

.page-faq .faq-q-text {
  font-weight: 600;
  line-height: 1.5;
  flex: 1;
}

.page-faq .faq-q-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-left: auto;
  color: var(--c-stone);
  transition: transform 0.4s var(--ease), color 0.35s var(--ease);
  width: 16px;
  height: 16px;
}

.page-faq .accordion-trigger[aria-expanded="true"] {
  color: var(--c-red);
}

.page-faq .accordion-trigger[aria-expanded="true"] .faq-q-icon {
  color: var(--c-red);
}

.page-faq .accordion-trigger[aria-expanded="true"] .faq-q-toggle {
  transform: rotate(45deg);
  color: var(--c-red);
}

.page-faq .accordion-inner {
  padding: 0 1.15rem 1.15rem;
}

.page-faq .accordion-inner p {
  margin: 0;
  font-size: var(--text-base);
  line-height: 1.8;
  color: #35455c;
}

.page-faq .accordion-inner strong {
  font-weight: 600;
  color: var(--c-plateau);
}

/* ===== 站内链接 ===== */
.page-faq .faq-inline-link {
  display: inline-block;
  margin-top: 0.75rem;
  color: var(--c-link);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  background-image: linear-gradient(var(--c-link), var(--c-link));
  background-size: 0% 1px;
  background-repeat: no-repeat;
  background-position: left bottom;
  transition: background-size 0.3s var(--ease), color 0.3s var(--ease);
}

.page-faq .faq-inline-link:hover {
  color: var(--c-red);
  background-image: linear-gradient(var(--c-red), var(--c-red));
  background-size: 100% 1px;
}

.page-faq .accordion-inner .faq-inline-link:first-child {
  margin-top: 0.1rem;
}

/* ===== 入口组图文布局 ===== */
.page-faq .faq-group-body {
  display: grid;
  gap: 1.25rem;
}

.page-faq .faq-group-figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  background: var(--c-snow);
  box-shadow: var(--shadow-soft);
}

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

.page-faq .faq-group-figure figcaption {
  padding: 0.7rem 0.5rem 0.8rem;
  text-align: center;
  font-size: var(--text-xs);
  color: var(--c-stone);
  letter-spacing: 0.03em;
}

/* ===== 联系支持组 ===== */
.page-faq .faq-group--contact {
  background: linear-gradient(150deg, var(--faq-hero-blue-deep) 0%, var(--faq-hero-blue) 55%, #27507F 100%);
  border-color: transparent;
  box-shadow: 0 16px 40px rgba(27, 54, 93, 0.25);
}

.page-faq .faq-group--contact .faq-group-heading {
  border-bottom-color: rgba(244, 241, 232, 0.14);
}

.page-faq .faq-group--contact .faq-group-index {
  color: var(--c-yellow);
  border-color: rgba(228, 168, 29, 0.45);
}

.page-faq .faq-group--contact .faq-group-title {
  color: var(--c-snow);
}

.page-faq .faq-group--contact .faq-group-desc {
  color: rgba(244, 241, 232, 0.72);
}

.page-faq .faq-group--contact .accordion-item {
  background: rgba(244, 241, 232, 0.07);
  border-color: rgba(244, 241, 232, 0.16);
}

.page-faq .faq-group--contact .accordion-item:hover {
  border-color: rgba(228, 168, 29, 0.4);
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.2);
}

.page-faq .faq-group--contact .accordion-trigger {
  color: var(--c-snow);
}

.page-faq .faq-group--contact .accordion-trigger:hover {
  color: var(--c-yellow);
}

.page-faq .faq-group--contact .faq-q-icon {
  color: var(--c-yellow);
}

.page-faq .faq-group--contact .faq-q-toggle {
  color: rgba(244, 241, 232, 0.65);
}

.page-faq .faq-group--contact .accordion-trigger[aria-expanded="true"] {
  color: var(--c-yellow);
}

.page-faq .faq-group--contact .accordion-trigger[aria-expanded="true"] .faq-q-icon,
.page-faq .faq-group--contact .accordion-trigger[aria-expanded="true"] .faq-q-toggle {
  color: var(--c-yellow);
}

.page-faq .faq-group--contact .accordion-inner p {
  color: rgba(244, 241, 232, 0.88);
}

.page-faq .faq-group--contact .accordion-inner strong {
  color: var(--c-snow);
}

.page-faq .faq-group--contact .faq-inline-link {
  color: var(--c-yellow);
  background-image: linear-gradient(var(--c-yellow), var(--c-yellow));
}

.page-faq .faq-group--contact .faq-inline-link:hover {
  color: var(--c-snow);
  background-image: linear-gradient(var(--c-snow), var(--c-snow));
}

.page-faq .faq-contact-cta {
  margin-top: 1.5rem;
  padding: 1.4rem 1.5rem;
  border-radius: var(--radius-md);
  background: rgba(244, 241, 232, 0.07);
  border: 1px solid rgba(244, 241, 232, 0.12);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
}

.page-faq .faq-contact-cta .btn-primary {
  background: var(--c-red);
  color: var(--c-snow);
}

.page-faq .faq-contact-cta .btn-primary:hover {
  background: #C33A24;
  transform: translateY(-2px);
}

.page-faq .faq-contact-cta p {
  margin: 0;
  font-size: var(--text-sm);
  color: rgba(244, 241, 232, 0.72);
  line-height: 1.6;
}

/* ===== 桌面端媒体查询 ===== */
@media (min-width: 981px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: 1.2fr 0.8fr;
    gap: 3rem;
  }

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

  .page-faq .faq-hero-actions .btn {
    padding: 0.75rem 1.6rem;
  }

  .page-faq .faq-layout {
    grid-template-columns: var(--faq-sidebar-w) minmax(0, 1fr);
    gap: 2.5rem;
  }

  .page-faq .faq-sidebar-inner {
    position: sticky;
    top: calc(var(--header-offset) + 1rem);
  }

  .page-faq .faq-index-list {
    flex-direction: column;
    align-items: stretch;
  }

  .page-faq .faq-index-link {
    white-space: nowrap;
    width: 100%;
    justify-content: flex-start;
  }

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

  .page-faq .faq-group-body {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 2rem;
    align-items: start;
  }

  .page-faq .faq-group-figure {
    position: sticky;
    top: calc(var(--header-offset) + 2rem);
  }

  .page-faq .faq-group-title {
    font-size: 1.5rem;
  }

  .page-faq .faq-contact-cta {
    padding: 1.5rem 2rem;
  }
}

/* ===== 桌面大屏优化 ===== */
@media (min-width: 1280px) {
  .page-faq .faq-hero {
    padding-top: 3.5rem;
  }

  .page-faq .faq-hero-desc {
    font-size: 1.0625rem;
  }

  .page-faq .faq-group-body {
    grid-template-columns: minmax(0, 1fr) 360px;
  }
}