.page-faq {
  --faq-blue-deep: #173f70;
  background-color: var(--color-bg);
  font-family: var(--font-body);
  line-height: 1.7;
}

/* ========== 顶部横幅 ========== */
.page-faq .faq-hero {
  position: relative;
  padding: 2rem 0 3rem;
  background:
    radial-gradient(circle at 88% 18%, rgba(224, 123, 57, 0.35) 0, rgba(224, 123, 57, 0) 32%),
    linear-gradient(130deg, var(--faq-blue-deep) 0%, var(--color-primary) 62%, #2b66a6 100%);
  color: #fff;
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  right: -4rem;
  top: 1.5rem;
  width: 18rem;
  height: 18rem;
  border: 2px solid rgba(255, 255, 255, 0.14);
  background: repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.05) 0 8px, transparent 8px 16px);
  transform: rotate(12deg);
  clip-path: polygon(0 0, calc(100% - 3rem) 0, 100% 3rem, 100% 100%, 0 100%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 8px;
  background: repeating-linear-gradient(135deg, var(--color-orange) 0 14px, var(--color-cream) 14px 16px, var(--color-red) 16px 30px, var(--color-cream) 30px 32px, var(--color-green) 32px 46px);
  opacity: 0.9;
}

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

.page-faq .faq-hero-grid {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  align-items: flex-start;
}

.page-faq .faq-kicker {
  display: inline-block;
  margin: 0 0 0.75rem;
  padding: 0.3rem 0.75rem;
  background: rgba(255, 255, 255, 0.12);
  border-left: 4px solid var(--color-orange);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  transform: skewX(-6deg);
}

.page-faq .faq-hero h1 {
  margin: 0 0 0.9rem;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(1.45rem, 4.2vw, 2.6rem);
  line-height: 1.22;
  letter-spacing: -0.02em;
  max-width: 20ch;
}

.page-faq .faq-hero-desc {
  margin: 0;
  max-width: 52ch;
  color: rgba(255, 255, 255, 0.9);
  font-size: 1rem;
}

.page-faq .faq-hero-figure {
  margin: 0;
  width: 100%;
}

.page-faq .faq-hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  clip-path: polygon(0 0, calc(100% - 1.25rem) 0, 100% 1.25rem, 100% 100%, 1.25rem 100%, 0 calc(100% - 1.25rem));
  border: 1px solid rgba(255, 255, 255, 0.4);
}

/* ========== 主体布局 ========== */
.page-faq .faq-body {
  padding-top: 2.5rem;
  padding-bottom: 2.5rem;
}

.page-faq .faq-layout {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  align-items: stretch;
}

.page-faq .faq-sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* ========== 分类目录 ========== */
.page-faq .faq-catalog {
  background: var(--color-cream);
  padding: 1.25rem 1rem;
  border-top: 4px solid var(--color-primary);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
}

.page-faq .faq-catalog-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.page-faq .faq-catalog-head h2 {
  margin: 0;
  font-size: 1.15rem;
  font-family: var(--font-heading);
  font-weight: 800;
  color: var(--color-ink);
}

.page-faq .faq-catalog-count {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-gray);
  letter-spacing: 0.02em;
}

.page-faq .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.page-faq .filter-button {
  border: 1.5px solid rgba(33, 37, 41, 0.35);
  background: transparent;
  color: var(--color-ink);
  padding: 0.45rem 0.85rem;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.88rem;
  line-height: 1.3;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 0.55rem), calc(100% - 0.55rem) 100%, 0 100%);
}

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

.page-faq .filter-button.is-active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

/* ========== 帮助卡片 ========== */
.page-faq .faq-help-card {
  background: linear-gradient(150deg, var(--color-primary) 0%, var(--faq-blue-deep) 100%);
  color: #fff;
  clip-path: polygon(0 0, calc(100% - 1.1rem) 0, 100% 1.1rem, 100% 100%, 1.1rem 100%, 0 calc(100% - 1.1rem));
}

.page-faq .faq-help-card img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-bottom: 2px solid var(--color-orange);
}

.page-faq .faq-help-card-body {
  padding: 1.25rem 1.25rem 1.4rem;
}

.page-faq .faq-help-card-body h3 {
  margin: 0 0 0.5rem;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.15rem;
}

.page-faq .faq-help-card-body p {
  margin: 0 0 1rem;
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.92rem;
}

.page-faq .faq-help-card-body .btn {
  margin-top: 0.2rem;
}

/* ========== 手风琴区域 ========== */
.page-faq .faq-main {
  min-width: 0;
}

.page-faq .faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.page-faq .faq-group {
  background: var(--color-cream);
  padding: 1.4rem 1.15rem 0.75rem;
  border-left: 5px solid var(--color-primary);
  clip-path: polygon(0 0, calc(100% - 0.9rem) 0, 100% 0.9rem, 100% 100%, 0.9rem 100%, 0 calc(100% - 0.9rem));
}

.page-faq .faq-group-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0 0 0.75rem;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--color-ink);
  letter-spacing: -0.01em;
}

.page-faq .faq-group-title span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  padding: 0.2rem 0.45rem;
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  transform: skewX(-10deg);
}

.page-faq .faq-item {
  border-bottom: 1px solid rgba(108, 117, 125, 0.28);
}

.page-faq .faq-item:last-child {
  border-bottom: 0;
}

.page-faq .faq-item summary {
  list-style: none;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.95rem 0.25rem;
  font-weight: 700;
  font-size: 0.98rem;
  color: var(--color-ink);
  cursor: pointer;
  transition: color 0.2s ease;
}

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

.page-faq .faq-item summary::after {
  content: "";
  flex: 0 0 0.55rem;
  width: 0.55rem;
  height: 0.55rem;
  align-self: center;
  border-right: 2px solid var(--color-primary);
  border-bottom: 2px solid var(--color-primary);
  transform: rotate(-45deg) translateY(-1px);
  transition: transform 0.3s ease, border-color 0.2s ease;
}

.page-faq .faq-item[open] summary::after {
  transform: rotate(45deg) translateY(-2px);
  border-color: var(--color-orange);
}

.page-faq .faq-item summary:hover {
  color: var(--color-primary);
}

.page-faq .faq-answer {
  padding: 0 0.25rem 1.1rem;
  color: var(--color-gray);
  font-size: 0.94rem;
  line-height: 1.75;
}

.page-faq .faq-answer p {
  margin: 0 0 0.6rem;
}

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

.page-faq .faq-answer a {
  color: var(--color-primary);
  font-weight: 700;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

/* ========== 底部 CTA ========== */
.page-faq .faq-bottom-cta {
  position: relative;
  background:
    linear-gradient(115deg, #142f52 0%, var(--color-primary) 60%, #2b66a6 100%);
  color: #fff;
}

.page-faq .faq-bottom-cta::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(115deg, rgba(255, 255, 255, 0.06) 0 20px, transparent 20px 40px);
  pointer-events: none;
}

.page-faq .faq-bottom-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: flex-start;
  padding-top: 2.5rem;
  padding-bottom: 2.5rem;
}

.page-faq .faq-bottom-copy h2 {
  margin: 0 0 0.6rem;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.5rem;
}

.page-faq .faq-bottom-copy p {
  margin: 0;
  color: rgba(255, 255, 255, 0.88);
  max-width: 56ch;
}

.page-faq .faq-bottom-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  align-items: center;
}

.page-faq .faq-bottom-actions .btn {
  padding: 0.75rem 1.4rem;
}

.page-faq .faq-bottom-actions .btn-primary {
  background: var(--color-orange);
  border-color: var(--color-orange);
  color: #fff;
}

.page-faq .faq-bottom-actions .btn-outline {
  border-color: rgba(255, 255, 255, 0.75);
  color: #fff;
}

.page-faq .faq-about-link {
  color: rgba(255, 255, 255, 0.85);
  font-weight: 700;
  font-size: 0.92rem;
  text-decoration: none;
  margin-left: 0.4rem;
  border-bottom: 2px solid rgba(255, 255, 255, 0.5);
  padding-bottom: 2px;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.page-faq .faq-about-link:hover {
  color: #fff;
  border-color: var(--color-orange);
}

/* ========== 筛选隐藏 ========== */
.page-faq .is-hidden {
  display: none !important;
}

/* ========== 平板与桌面 ========== */
@media (min-width: 768px) {
  .page-faq .faq-hero {
    padding-top: 2.5rem;
  }

  .page-faq .faq-hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: center;
    gap: 2.5rem;
  }

  .page-faq .faq-bottom-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

@media (min-width: 992px) {
  .page-faq .faq-layout {
    display: grid;
    grid-template-columns: 300px minmax(0, 1fr);
    gap: 2.5rem;
    align-items: start;
  }

  .page-faq .faq-sidebar {
    position: sticky;
    top: 110px;
  }

  .page-faq .faq-help-card img {
    aspect-ratio: 4 / 3;
  }

  .page-faq .faq-group {
    padding: 1.6rem 1.5rem 0.9rem;
  }

  .page-faq .faq-item summary {
    font-size: 1.02rem;
    padding: 1rem 0.4rem;
  }

  .page-faq .faq-answer {
    padding-right: 1.5rem;
  }
}