/* ===== 页面专属：支持中心 (faq) ===== */
.page-faq {
  --faq-hero-min-height: 260px;
  --faq-sidebar-width: 260px;
  --faq-tab-radius: 8px;
  --faq-item-radius: 8px;
  --faq-grid-color: rgba(29, 53, 87, 0.15);
  --faq-accent-glow: #E63946;
}

/* ---------- 顶部横幅 ---------- */
.page-faq .faq-hero {
  position: relative;
  background: var(--color-bg-dark);
  padding: 1.5rem 0 0 0;
  min-height: var(--faq-hero-min-height);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  border-bottom: 2px solid var(--color-border);
}

.page-faq .faq-hero .container {
  width: 100%;
  max-width: var(--max-width-content);
  margin: 0 auto;
  padding: 0 1rem;
}

.page-faq .faq-breadcrumb {
  font-family: var(--font-body);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}

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

.page-faq .faq-breadcrumb a:hover,
.page-faq .faq-breadcrumb a:focus-visible {
  color: var(--color-accent-yellow);
}

.page-faq .breadcrumb-sep {
  color: var(--color-border);
  user-select: none;
}

.page-faq .faq-breadcrumb [aria-current="page"] {
  color: var(--color-accent-yellow);
  font-weight: 500;
}

.page-faq .faq-hero-body {
  padding: 1.5rem 0 1rem 0;
}

.page-faq .faq-hero-title {
  font-family: var(--font-headings);
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: var(--color-text-primary);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  line-height: 1.1;
  margin: 0 0 0.4rem 0;
}

.page-faq .faq-hero-subtitle {
  font-family: var(--font-body);
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin: 0;
  max-width: 520px;
}

.page-faq .faq-hero-visual {
  width: 100%;
  overflow: hidden;
  line-height: 0;
}

.page-faq .faq-hero-img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 140px;
  object-fit: cover;
  object-position: center 30%;
}

/* ---------- 主体区域 ---------- */
.page-faq .faq-main {
  position: relative;
  background: var(--color-bg-dark);
  padding: 2rem 0 3rem 0;
}

.page-faq .faq-main .container {
  max-width: var(--max-width-content);
  margin: 0 auto;
  padding: 0 1rem;
}

/* ---------- 两栏布局 ---------- */
.page-faq .faq-layout {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* ---------- 侧边栏（分类标签） ---------- */
.page-faq .faq-sidebar {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.page-faq .faq-tabs {
  display: flex;
  flex-direction: row;
  gap: 0.5rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) transparent;
  padding-bottom: 0.25rem;
}

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

.page-faq .faq-tabs::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 4px;
}

.page-faq .faq-tab {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.2rem;
  font-family: var(--font-body);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  background: var(--color-surface-dark);
  border: 1px solid var(--color-border);
  border-radius: var(--faq-tab-radius);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-speed);
  flex-shrink: 0;
  position: relative;
}

.page-faq .faq-tab:hover,
.page-faq .faq-tab:focus-visible {
  color: var(--color-text-primary);
  border-color: var(--color-accent-yellow);
  background: rgba(244, 162, 97, 0.08);
}

.page-faq .faq-tab.is-active {
  color: var(--color-text-primary);
  background: var(--color-primary-red);
  border-color: var(--color-primary-red);
  box-shadow: 0 0 20px rgba(230, 57, 70, 0.25);
}

.page-faq .faq-tab.is-active:hover {
  background: #c52e3a;
  border-color: #c52e3a;
  box-shadow: 0 0 28px rgba(230, 57, 70, 0.35);
}

.page-faq .faq-tab-icon,
.page-faq .faq-tab-svg {
  width: 20px;
  height: 20px;
  border-radius: 4px;
  object-fit: cover;
  flex-shrink: 0;
}

.page-faq .faq-tab-svg {
  color: var(--color-text-secondary);
}

.page-faq .faq-tab.is-active .faq-tab-svg {
  color: var(--color-text-primary);
}

.page-faq .faq-tab-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  font-size: 0.7rem;
  font-weight: 600;
  border-radius: 10px;
  background: rgba(139, 148, 158, 0.15);
  color: var(--color-text-secondary);
  line-height: 1;
}

.page-faq .faq-tab.is-active .faq-tab-count {
  background: rgba(255, 255, 255, 0.2);
  color: var(--color-text-primary);
}

.page-faq .faq-sidebar-info {
  padding: 0.75rem 0.25rem;
  border-top: 1px solid var(--color-border);
  display: none;
}

.page-faq .faq-sidebar-text {
  font-family: var(--font-body);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin: 0;
  line-height: 1.6;
}

.page-faq .faq-sidebar-link {
  color: var(--color-accent-yellow);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-speed);
}

.page-faq .faq-sidebar-link:hover,
.page-faq .faq-sidebar-link:focus-visible {
  border-bottom-color: var(--color-accent-yellow);
}

/* ---------- 右侧问题列表 ---------- */
.page-faq .faq-content {
  position: relative;
  flex: 1;
  min-width: 0;
}

.page-faq .faq-grid-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, var(--faq-grid-color) 1px, transparent 1px),
    linear-gradient(to bottom, var(--faq-grid-color) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.4;
  z-index: 0;
  border-radius: var(--faq-item-radius);
}

/* ---------- 手风琴项 ---------- */
.page-faq .faq-item {
  position: relative;
  z-index: 1;
  display: block;
  margin-bottom: 0.5rem;
  background: var(--color-surface-dark);
  border: 1px solid var(--color-border);
  border-radius: var(--faq-item-radius);
  overflow: hidden;
  transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
}

.page-faq .faq-item:hover {
  border-color: rgba(244, 162, 97, 0.3);
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.25);
}

.page-faq .faq-item[open] {
  border-color: var(--color-primary-blue);
  box-shadow: 0 4px 24px rgba(29, 53, 87, 0.2);
}

.page-faq .faq-item-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  font-family: var(--font-body);
  font-size: var(--font-size-md);
  font-weight: 500;
  color: var(--color-text-primary);
  cursor: pointer;
  list-style: none;
  user-select: none;
  transition: background var(--transition-speed);
}

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

.page-faq .faq-item-summary::marker {
  display: none;
  content: "";
}

.page-faq .faq-item-summary:hover {
  background: rgba(230, 57, 70, 0.04);
}

.page-faq .faq-item[open] .faq-item-summary {
  background: rgba(29, 53, 87, 0.15);
  border-bottom: 1px solid var(--color-border);
}

.page-faq .faq-item-q {
  flex: 1;
  min-width: 0;
}

.page-faq .faq-item-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  position: relative;
  transition: transform var(--transition-speed);
}

.page-faq .faq-item-icon::before,
.page-faq .faq-item-icon::after {
  content: "";
  position: absolute;
  background: var(--color-text-secondary);
  border-radius: 2px;
  transition: background var(--transition-speed), transform var(--transition-speed);
}

.page-faq .faq-item-icon::before {
  width: 2px;
  height: 14px;
  top: 3px;
  left: 9px;
}

.page-faq .faq-item-icon::after {
  width: 14px;
  height: 2px;
  top: 9px;
  left: 3px;
}

.page-faq .faq-item[open] .faq-item-icon::before {
  transform: rotate(90deg);
  background: var(--color-accent-yellow);
}

.page-faq .faq-item[open] .faq-item-icon::after {
  background: var(--color-accent-yellow);
}

.page-faq .faq-answer {
  padding: 1rem 1.25rem 1.25rem 1.25rem;
  font-family: var(--font-body);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.page-faq .faq-answer p {
  margin: 0 0 0.75rem 0;
}

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

.page-faq .faq-answer-link {
  display: inline-block;
  margin-top: 0.4rem;
  margin-right: 1rem;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-accent-yellow);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-speed), color var(--transition-speed);
}

.page-faq .faq-answer-link:hover,
.page-faq .faq-answer-link:focus-visible {
  border-bottom-color: var(--color-accent-yellow);
  color: #f6b87e;
}

.page-faq .faq-contact-list {
  list-style: none;
  padding: 0;
  margin: 0.5rem 0 0.25rem 0;
}

.page-faq .faq-contact-list li {
  padding: 0.3rem 0;
  line-height: 1.6;
}

.page-faq .faq-contact-list strong {
  color: var(--color-text-primary);
  font-weight: 500;
}

/* ---------- CTA 区块 ---------- */
.page-faq .faq-cta {
  background: var(--color-bg-dark);
  padding: 2rem 0 3.5rem 0;
  border-top: 1px solid var(--color-border);
}

.page-faq .faq-cta .container {
  max-width: var(--max-width-content);
  margin: 0 auto;
  padding: 0 1rem;
}

.page-faq .faq-cta-card {
  background: var(--color-surface-dark);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: 2rem 1.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-faq .faq-cta-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary-red), var(--color-accent-yellow), var(--color-primary-red));
  opacity: 0.6;
}

.page-faq .faq-cta-title {
  font-family: var(--font-headings);
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-text-primary);
  text-transform: uppercase;
  margin: 0 0 0.5rem 0;
  letter-spacing: 0.03em;
}

.page-faq .faq-cta-text {
  font-family: var(--font-body);
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  margin: 0 0 1.5rem 0;
  max-width: 460px;
  margin-left: auto;
  margin-right: auto;
}

.page-faq .faq-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.page-faq .btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.6rem;
  font-family: var(--font-body);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-primary);
  background: var(--color-primary-red);
  border: 2px solid var(--color-primary-red);
  border-radius: var(--border-radius-md);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-speed);
}

.page-faq .btn:hover,
.page-faq .btn:focus-visible {
  background: transparent;
  color: var(--color-accent-yellow);
  border-color: var(--color-accent-yellow);
  box-shadow: 0 0 24px rgba(244, 162, 97, 0.2);
}

.page-faq .btn-outline {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-text-secondary);
}

.page-faq .btn-outline:hover,
.page-faq .btn-outline:focus-visible {
  background: transparent;
  border-color: var(--color-accent-yellow);
  color: var(--color-accent-yellow);
  box-shadow: 0 0 20px rgba(244, 162, 97, 0.12);
}

/* ===== 平板端 (≥640px) ===== */
@media (min-width: 640px) {
  .page-faq .faq-hero {
    padding: 2rem 0 0 0;
  }

  .page-faq .faq-hero-title {
    font-size: 2.6rem;
  }

  .page-faq .faq-hero-img {
    max-height: 180px;
  }

  .page-faq .faq-tabs {
    flex-wrap: wrap;
    overflow-x: visible;
  }

  .page-faq .faq-tab {
    padding: 0.7rem 1.4rem;
    font-size: var(--font-size-md);
  }

  .page-faq .faq-item-summary {
    padding: 1.1rem 1.5rem;
    font-size: var(--font-size-lg);
  }

  .page-faq .faq-answer {
    padding: 1.1rem 1.5rem 1.4rem 1.5rem;
    font-size: var(--font-size-md);
  }

  .page-faq .faq-cta-card {
    padding: 2.5rem 2rem;
  }
}

/* ===== 桌面端 (≥1024px) ===== */
@media (min-width: 1024px) {
  .page-faq .faq-hero {
    min-height: auto;
    padding: 0 0 0 0;
    flex-direction: row;
    align-items: stretch;
  }

  .page-faq .faq-hero .container {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 2.5rem 2rem 2rem 2rem;
  }

  .page-faq .faq-hero-body {
    padding: 1rem 0 0.5rem 0;
  }

  .page-faq .faq-hero-title {
    font-size: 3.2rem;
  }

  .page-faq .faq-hero-visual {
    width: 45%;
    flex-shrink: 0;
    align-self: flex-end;
  }

  .page-faq .faq-hero-img {
    max-height: 200px;
    height: 100%;
    object-position: center 40%;
  }

  .page-faq .faq-main {
    padding: 3rem 0 4rem 0;
  }

  .page-faq .faq-layout {
    flex-direction: row;
    align-items: flex-start;
    gap: 2.5rem;
  }

  .page-faq .faq-sidebar {
    width: var(--faq-sidebar-width);
    flex-shrink: 0;
    position: sticky;
    top: 2rem;
  }

  .page-faq .faq-tabs {
    flex-direction: column;
    gap: 0.4rem;
    overflow-x: visible;
  }

  .page-faq .faq-tab {
    width: 100%;
    white-space: normal;
  }

  .page-faq .faq-sidebar-info {
    display: block;
  }

  .page-faq .faq-content {
    flex: 1;
    min-width: 0;
  }

  .page-faq .faq-grid-bg {
    background-size: 56px 56px;
  }

  .page-faq .faq-item {
    margin-bottom: 0.6rem;
  }

  .page-faq .faq-cta {
    padding: 3rem 0 4.5rem 0;
  }

  .page-faq .faq-cta-card {
    padding: 3rem 2.5rem;
  }

  .page-faq .faq-cta-title {
    font-size: var(--font-size-3xl);
  }
}

/* ===== 大桌面端 (≥1280px) ===== */
@media (min-width: 1280px) {
  .page-faq .faq-hero .container {
    padding-left: 3rem;
  }

  .page-faq .faq-hero-title {
    font-size: 3.6rem;
  }

  .page-faq .faq-hero-visual {
    width: 40%;
  }

  .page-faq .faq-layout {
    gap: 3rem;
  }

  .page-faq .faq-sidebar {
    width: 280px;
  }
}