.page-faq {
  --faq-bg: var(--color-bg, #0f0f1a);
  --faq-card-bg: var(--color-card-bg, rgba(26, 26, 46, 0.8));
  --faq-border: var(--color-border, rgba(0, 191, 255, 0.3));
  --faq-primary: var(--color-primary, #00BFFF);
  --faq-secondary: var(--color-secondary, #FF4500);
  --faq-accent: var(--color-accent, #FFD700);
  --faq-text-light: var(--color-text-light, #FFFFFF);
  --faq-text-dark: var(--color-text-dark, #1A1A2E);
  --faq-font-heading: var(--font-heading, 'Futura Extra Bold', 'Impact', sans-serif);
  --faq-font-body: var(--font-body, 'Inter', 'Arial', sans-serif);
  --faq-max-width: var(--max-width, 1280px);
  --faq-transition: var(--transition, 0.3s ease-out);
  --faq-radius: 12px;

  background: var(--faq-bg);
  color: var(--faq-text-light);
  font-family: var(--faq-font-body);
  line-height: 1.6;
  position: relative;
  min-height: 100vh;
  padding-bottom: 4rem;
}

/* ---------- Hero ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 3rem 1rem 2rem;
  background: linear-gradient(135deg, var(--faq-dark, #1A1A2E) 0%, #12122a 60%, #0a0a1a 100%);
  border-bottom: 2px solid var(--faq-border);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -10%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(0,191,255,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.page-faq .breadcrumb {
  margin-bottom: 1rem;
  font-size: 0.875rem;
  opacity: 0.75;
}

.page-faq .breadcrumb ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0;
  margin: 0;
}

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

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  opacity: 0.8;
  text-decoration: underline;
}

.page-faq .breadcrumb [aria-current="page"] {
  color: var(--faq-text-light);
  font-weight: 600;
}

.page-faq .faq-hero-title {
  font-family: var(--faq-font-heading);
  font-size: clamp(2rem, 6vw, 3.5rem);
  line-height: 1.1;
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
  text-transform: uppercase;
}

.page-faq .faq-hero-title .text-accent {
  color: var(--faq-accent);
  display: inline-block;
  margin: 0 0.2em;
}

.page-faq .faq-hero-sub {
  font-size: 1.125rem;
  opacity: 0.8;
  margin: 0 0 1.5rem;
  max-width: 36em;
}

.page-faq .faq-search {
  position: relative;
  max-width: 480px;
}

.page-faq .faq-search-input {
  width: 100%;
  padding: 0.85rem 1rem 0.85rem 2.8rem;
  border: 2px solid var(--faq-border);
  border-radius: 60px;
  background: var(--faq-card-bg);
  color: var(--faq-text-light);
  font-family: var(--faq-font-body);
  font-size: 1rem;
  backdrop-filter: blur(6px);
  transition: border-color var(--faq-transition), box-shadow var(--faq-transition);
  box-sizing: border-box;
}

.page-faq .faq-search-input::placeholder {
  color: rgba(255, 255, 255, 0.45);
}

.page-faq .faq-search-input:focus {
  outline: none;
  border-color: var(--faq-primary);
  box-shadow: 0 0 0 3px rgba(0, 191, 255, 0.25);
}

.page-faq .faq-search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.3rem;
  color: var(--faq-primary);
  pointer-events: none;
  line-height: 1;
}

.page-faq .sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ---------- Categories Tags ---------- */
.page-faq .faq-categories {
  padding: 2rem 1rem 0;
}

.page-faq .section-title {
  font-family: var(--faq-font-heading);
  font-size: 1.75rem;
  margin: 0 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 3px solid var(--faq-primary);
  display: inline-block;
  letter-spacing: -0.01em;
  text-transform: uppercase;
}

.page-faq .faq-tag-row {
  display: flex;
  flex-wrap: nowrap;
  gap: 0.6rem;
  overflow-x: auto;
  padding-bottom: 0.75rem;
  scrollbar-width: thin;
  scrollbar-color: var(--faq-primary) transparent;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-tag-row::-webkit-scrollbar {
  height: 4px;
}

.page-faq .faq-tag-row::-webkit-scrollbar-thumb {
  background: var(--faq-primary);
  border-radius: 4px;
}

.page-faq .faq-tag {
  flex-shrink: 0;
  padding: 0.5rem 1.2rem;
  border: 2px solid var(--faq-border);
  border-radius: 60px;
  background: transparent;
  color: var(--faq-text-light);
  font-family: var(--faq-font-body);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--faq-transition), border-color var(--faq-transition), color var(--faq-transition);
  white-space: nowrap;
}

.page-faq .faq-tag:hover,
.page-faq .faq-tag:focus-visible {
  border-color: var(--faq-primary);
  background: rgba(0, 191, 255, 0.12);
}

.page-faq .faq-tag.is-active {
  background: var(--faq-primary);
  border-color: var(--faq-primary);
  color: var(--faq-text-dark);
}

/* ---------- Accordion List ---------- */
.page-faq .faq-list {
  padding: 2rem 1rem 3rem;
}

.page-faq .faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.page-faq .faq-item {
  border: 1px solid var(--faq-border);
  border-radius: var(--faq-radius);
  background: var(--faq-card-bg);
  backdrop-filter: blur(8px);
  overflow: hidden;
  transition: box-shadow var(--faq-transition);
}

.page-faq .faq-item:hover {
  box-shadow: 0 4px 20px rgba(0, 191, 255, 0.12);
}

.page-faq .faq-question {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  padding: 1rem 1.25rem;
  border: none;
  background: transparent;
  color: var(--faq-text-light);
  font-family: var(--faq-font-body);
  font-size: 1rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: background var(--faq-transition);
  position: relative;
}

.page-faq .faq-question:hover,
.page-faq .faq-question:focus-visible {
  background: rgba(0, 191, 255, 0.06);
  outline: none;
}

.page-faq .faq-q-icon {
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--faq-primary);
  color: var(--faq-text-dark);
  font-family: var(--faq-font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1;
}

.page-faq .faq-q-text {
  flex: 1;
}

.page-faq .faq-arrow {
  flex-shrink: 0;
  font-size: 1.2rem;
  transition: transform var(--faq-transition);
  color: var(--faq-primary);
  line-height: 1;
}

.page-faq .faq-question[aria-expanded="true"] .faq-arrow {
  transform: rotate(180deg);
}

.page-faq .faq-answer {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.4s ease-out;
  padding: 0 1.25rem;
}

.page-faq .faq-answer[hidden] {
  display: grid;
  grid-template-rows: 0fr;
}

.page-faq .faq-answer:not([hidden]) {
  grid-template-rows: 1fr;
}

.page-faq .faq-answer-inner {
  overflow: hidden;
  padding: 0 0 1.25rem;
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.95rem;
  line-height: 1.7;
}

.page-faq .faq-answer-inner p {
  margin: 0 0 1rem;
}

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

.page-faq .faq-figure {
  margin: 1rem 0 0;
  border-radius: 8px;
  overflow: hidden;
  background: rgba(0, 0, 0, 0.3);
  padding: 0.75rem;
  max-width: 320px;
}

.page-faq .faq-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 4px;
  object-fit: cover;
}

.page-faq .faq-figure figcaption {
  margin-top: 0.5rem;
  font-size: 0.82rem;
  opacity: 0.7;
  text-align: center;
  font-style: italic;
}

/* ---------- Contact Section ---------- */
.page-faq .faq-contact {
  padding: 0 1rem 3rem;
}

.page-faq .faq-contact-card {
  background: var(--faq-card-bg);
  backdrop-filter: blur(8px);
  border: 1px solid var(--faq-border);
  border-radius: var(--faq-radius);
  padding: 1.5rem;
}

.page-faq .faq-contact-intro {
  font-size: 1.05rem;
  margin: 0 0 1.2rem;
  font-weight: 500;
}

.page-faq .faq-contact-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.page-faq .faq-contact-label {
  font-weight: 700;
  color: var(--faq-primary);
  margin-right: 0.3em;
}

.page-faq .faq-contact-note {
  font-size: 0.85rem;
  opacity: 0.7;
  margin: 0 0 1.5rem;
  border-left: 3px solid var(--faq-accent);
  padding-left: 0.75rem;
}

.page-faq .btn-primary {
  display: inline-block;
  padding: 0.7rem 2rem;
  border: none;
  border-radius: 60px;
  background: var(--faq-primary);
  color: var(--faq-text-dark);
  font-family: var(--faq-font-body);
  font-size: 1rem;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: background var(--faq-transition), transform var(--faq-transition);
}

.page-faq .btn-primary:hover,
.page-faq .btn-primary:focus-visible {
  background: #33ccff;
  transform: translateY(-2px);
}

/* ---------- Decor ---------- */
.page-faq .faq-decor {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  pointer-events: none;
  z-index: 0;
  opacity: 0.15;
  mix-blend-mode: screen;
}

.page-faq .faq-decor-img {
  display: block;
  width: 120px;
  height: auto;
  opacity: 0.5;
}

/* ---------- Container ---------- */
.page-faq .container {
  max-width: var(--faq-max-width);
  margin: 0 auto;
  padding: 0 1rem;
  position: relative;
  z-index: 1;
}

/* ========== 桌面端 ≥768px ========== */
@media (min-width: 768px) {
  .page-faq .faq-hero {
    padding: 4rem 2rem 3rem;
  }

  .page-faq .faq-hero-title {
    font-size: 3.5rem;
  }

  .page-faq .faq-hero-sub {
    font-size: 1.25rem;
  }

  .page-faq .faq-search {
    max-width: 560px;
  }

  .page-faq .faq-categories {
    padding: 3rem 2rem 0;
  }

  .page-faq .faq-list {
    padding: 3rem 2rem 4rem;
  }

  .page-faq .faq-accordion {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
  }

  .page-faq .faq-item {
    break-inside: avoid;
  }

  .page-faq .faq-question {
    padding: 1.25rem 1.5rem;
    font-size: 1.05rem;
  }

  .page-faq .faq-answer {
    padding: 0 1.5rem;
  }

  .page-faq .faq-contact {
    padding: 0 2rem 4rem;
  }

  .page-faq .faq-contact-card {
    padding: 2rem 2.5rem;
    max-width: 640px;
  }

  .page-faq .faq-contact-list {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 1.5rem;
  }

  .page-faq .faq-decor {
    right: 2.5rem;
    bottom: 2.5rem;
  }

  .page-faq .faq-decor-img {
    width: 160px;
  }
}

/* ========== 大桌面 ≥1024px ========== */
@media (min-width: 1024px) {
  .page-faq .faq-hero {
    padding: 5rem 2rem 4rem;
  }

  .page-faq .faq-hero-title {
    font-size: 4.5rem;
  }

  .page-faq .faq-accordion {
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
  }

  .page-faq .faq-tag-row {
    gap: 1rem;
  }

  .page-faq .faq-tag {
    padding: 0.6rem 1.6rem;
    font-size: 1rem;
  }
}

.page-faq {
  --faq-dark: transparent;
}