.page-faq {
  --faq-max: var(--container-main);
  --faq-gap: 28px;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  line-height: 1.75;
  overflow-x: hidden;
}

.page-faq *,
.page-faq *::before,
.page-faq *::after {
  box-sizing: border-box;
}

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

.page-faq a {
  transition: color var(--transition-base), background var(--transition-base), border-color var(--transition-base);
}

/* 面包屑 */
.page-faq .faq-breadcrumb {
  max-width: var(--faq-max);
  margin: 0 auto;
  padding: 24px var(--page-gutter) 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  font-size: 14px;
}

.page-faq .breadcrumb-link {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
}

.page-faq .breadcrumb-link:hover {
  color: var(--color-accent);
}

.page-faq .breadcrumb-sep {
  color: var(--color-border);
}

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

/* 页面头部 */
.page-faq .faq-hero {
  position: relative;
  display: grid;
  gap: 28px;
  align-items: center;
  max-width: var(--faq-max);
  margin: 0 auto;
  padding: 36px var(--page-gutter) 44px;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: var(--page-gutter);
  right: var(--page-gutter);
  height: 4px;
  background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-accent) 64px, var(--color-gold) 64px, var(--color-gold) 128px, var(--color-primary) 128px, var(--color-primary) 320px);
  opacity: 0.85;
}

.page-faq .faq-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  font-weight: 700;
}

.page-faq .faq-eyebrow-num {
  display: inline-block;
  padding: 3px 10px;
  background: var(--color-primary);
  color: var(--color-bg);
  transform: skewX(-10deg);
}

.page-faq .faq-hero h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(46px, 11vw, 88px);
  font-style: italic;
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: 0.01em;
  color: var(--color-dark);
  text-transform: uppercase;
}

.page-faq .faq-hero-para {
  max-width: 58ch;
  margin: 0 0 26px;
  font-size: 16px;
  color: var(--color-text-secondary);
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero-actions a {
  display: inline-flex;
  align-items: center;
  padding: 11px 20px;
  background: var(--color-primary);
  border: 1px solid var(--color-primary);
  color: var(--color-white);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

.page-faq .faq-hero-actions a:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
}

.page-faq .faq-hero-actions .faq-hero-cta {
  background: var(--color-accent);
  border-color: var(--color-accent);
}

.page-faq .faq-hero-actions .faq-hero-cta:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
}

.page-faq .faq-hero-figure {
  margin: 0;
  padding: 0;
  position: relative;
}

.page-faq .faq-hero-figure img {
  width: 100%;
  max-width: 400px;
  margin: 0 auto;
  object-fit: cover;
  border-bottom: 6px solid var(--color-gold);
  filter: saturate(1.1) contrast(1.04);
  box-shadow: var(--shadow-md);
}

/* 目录导航 */
.page-faq .faq-index {
  position: relative;
  overflow: hidden;
  background: var(--color-primary);
  padding: 36px var(--page-gutter);
  color: var(--color-white);
}

.page-faq .faq-index::after {
  content: "INDEX";
  position: absolute;
  right: 4%;
  bottom: -12px;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 110px;
  line-height: 1;
  color: var(--color-white);
  opacity: 0.07;
  pointer-events: none;
}

.page-faq .faq-index-head {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 24px;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 18px;
}

.page-faq .faq-index-title {
  margin: 0;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 36px;
  line-height: 1;
  color: var(--color-gold);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.page-faq .faq-index-tip {
  margin: 0;
  font-size: 14px;
  color: rgba(245, 245, 245, 0.72);
}

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

.page-faq .faq-index-list li {
  margin: 0 12px 12px 0;
}

.page-faq .faq-index-list a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  background: rgba(245, 245, 245, 0.08);
  border: 1px solid rgba(245, 245, 245, 0.25);
  color: var(--color-white);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}

.page-faq .faq-index-list a:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
}

.page-faq .faq-index-num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-gold);
}

.page-faq .faq-index-list a:hover .faq-index-num {
  color: var(--color-white);
}

/* 主体布局 */
.page-faq .faq-layout {
  display: grid;
  gap: 40px;
  align-items: start;
  max-width: var(--faq-max);
  margin: 0 auto;
  padding: 48px var(--page-gutter) 56px;
}

.page-faq .faq-main {
  min-width: 0;
}

/* FAQ 分组 */
.page-faq .faq-group {
  position: relative;
  margin-bottom: 56px;
  scroll-margin-top: calc(var(--header-bar-height) + 20px);
}

.page-faq .faq-group::before {
  content: attr(data-index);
  position: absolute;
  top: 6px;
  right: 0;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 136px;
  line-height: 0.8;
  color: var(--color-primary);
  opacity: 0.12;
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-group-head {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  border-left: 6px solid var(--color-accent);
  padding-left: 16px;
}

.page-faq .faq-group-num {
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 700;
  color: var(--color-gold);
  line-height: 1.4;
}

.page-faq .faq-group-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 38px;
  line-height: 1;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.page-faq .faq-group-desc {
  position: relative;
  z-index: 1;
  max-width: 60ch;
  margin: 10px 0 26px 38px;
  font-size: 15px;
  color: var(--color-text-secondary);
}

.page-faq .faq-items {
  position: relative;
  z-index: 1;
  border-top: 3px solid var(--color-primary);
}

/* 手风琴 */
.page-faq .faq-item {
  background: transparent;
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

.page-faq .faq-item[open] {
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 14px;
  cursor: pointer;
  list-style: none;
  font-weight: 700;
  font-size: 16px;
  color: var(--color-dark);
}

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

.page-faq .faq-item summary::before {
  content: "Q";
  flex: 0 0 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  color: var(--color-bg);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  transform: skewX(-8deg);
}

.page-faq .faq-item[open] summary::before {
  background: var(--color-accent);
  color: var(--color-white);
}

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

.page-faq .faq-item summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 400;
  line-height: 1;
  color: var(--color-gold);
  transition: transform var(--transition-base), color var(--transition-base);
}

.page-faq .faq-item[open] summary::after {
  content: "−";
  color: var(--color-accent);
}

.page-faq .faq-answer {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 0 16px 22px;
}

.page-faq .faq-answer::before {
  content: "A";
  flex: 0 0 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  border: 1px solid var(--color-gold);
  color: var(--color-gold-dark);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  transform: skewX(-8deg);
}

.page-faq .faq-answer p {
  flex: 1;
  min-width: 0;
  margin: 0;
  font-size: 15px;
  color: var(--color-text-secondary);
}

.page-faq .faq-answer a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
  font-weight: 600;
}

.page-faq .faq-answer a:hover {
  color: var(--color-accent);
}

/* 侧边帮助栏 */
.page-faq .faq-side {
  display: grid;
  gap: 24px;
  align-content: start;
}

.page-faq .faq-side-card {
  background: var(--color-primary);
  color: var(--color-white);
  padding: 28px 24px;
  clip-path: polygon(0 0, 100% 2%, 100% 100%, 0 96%);
  box-shadow: var(--shadow-md);
}

.page-faq .faq-side-kicker {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--color-gold);
  text-transform: uppercase;
}

.page-faq .faq-side-card h2 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 32px;
  line-height: 1;
  color: var(--color-white);
  text-transform: uppercase;
}

.page-faq .faq-side-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-side-list li {
  margin: 0 0 4px;
}

.page-faq .faq-side-list a {
  display: block;
  padding: 10px 8px;
  border-bottom: 1px solid rgba(245, 245, 245, 0.18);
  color: var(--color-white);
  font-family: var(--font-mono);
  font-size: 14px;
  text-decoration: none;
}

.page-faq .faq-side-list a:hover {
  color: var(--color-gold);
  border-bottom-color: var(--color-gold);
}

.page-faq .faq-side-note {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  padding: 20px 18px;
  box-shadow: var(--shadow-sm);
}

.page-faq .faq-side-note p {
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 700;
  color: var(--color-dark);
}

.page-faq .faq-side-note a {
  display: inline-block;
  padding: 8px 14px;
  background: var(--color-accent);
  color: var(--color-white);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

.page-faq .faq-side-note a:hover {
  background: var(--color-accent-dark);
}

/* 数据流程 */
.page-faq .faq-flow {
  display: grid;
  gap: 32px;
  align-items: center;
  background: linear-gradient(135deg, var(--color-dark), var(--color-primary-dark) 70%);
  color: var(--color-white);
  padding: 48px var(--page-gutter);
}

.page-faq .faq-flow-copy {
  max-width: 640px;
}

.page-faq .faq-flow-kicker {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  text-transform: uppercase;
  font-weight: 700;
}

.page-faq .faq-flow h2 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 36px;
  line-height: 1.08;
  color: var(--color-gold);
  text-transform: uppercase;
}

.page-faq .faq-flow-copy > p {
  margin: 0 0 24px;
  font-size: 15px;
  color: rgba(245, 245, 245, 0.82);
}

.page-faq .faq-flow-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-faq .faq-flow-steps li {
  display: flex;
  align-items: center;
  gap: 14px;
  border-left: 3px solid var(--color-accent);
  padding: 6px 0 6px 16px;
  font-size: 15px;
  color: var(--color-white);
}

.page-faq .faq-flow-num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-gold);
}

.page-faq .faq-flow-figure {
  margin: 0;
}

.page-faq .faq-flow-figure img {
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
  object-fit: cover;
  border-top: 6px solid var(--color-gold);
  box-shadow: var(--shadow-md);
}

/* 底部联络 */
.page-faq .faq-cta {
  background: var(--color-primary);
  padding: 52px var(--page-gutter);
  border-bottom: 8px solid var(--color-accent);
}

.page-faq .faq-cta-inner {
  max-width: var(--faq-max);
  margin: 0 auto;
  display: grid;
  gap: 14px;
}

.page-faq .faq-cta h2 {
  margin: 0;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 42px;
  line-height: 1;
  color: var(--color-bg);
  text-transform: uppercase;
}

.page-faq .faq-cta p {
  max-width: 62ch;
  margin: 0;
  font-size: 16px;
  color: rgba(245, 245, 245, 0.82);
}

.page-faq .faq-cta-list {
  display: grid;
  gap: 6px;
  margin: 12px 0 18px;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--color-white);
}

.page-faq .faq-cta-list li {
  padding: 10px 0;
  border-bottom: 1px solid rgba(245, 245, 245, 0.2);
}

.page-faq .faq-cta-list span {
  color: var(--color-gold);
  font-weight: 700;
}

.page-faq .faq-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}

.page-faq .faq-cta-btn {
  display: inline-flex;
  align-items: center;
  padding: 12px 24px;
  background: var(--color-accent);
  color: var(--color-white);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
}

.page-faq .faq-cta-btn:hover {
  background: var(--color-accent-dark);
}

.page-faq .faq-cta-link {
  color: var(--color-gold);
  text-decoration: none;
  border-bottom: 1px solid var(--color-gold);
  font-size: 15px;
  font-weight: 600;
}

.page-faq .faq-cta-link:hover {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

/* 桌面端增强 */
@media (min-width: 640px) {
  .page-faq .faq-index-list a {
    margin-right: 12px;
  }

  .page-faq .faq-group-head h2 {
    font-size: 46px;
  }

  .page-faq .faq-flow-steps {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1fr) 380px;
    gap: 64px;
    padding-top: 72px;
    padding-bottom: 72px;
  }

  .page-faq .faq-hero-para {
    font-size: 17px;
  }

  .page-faq .faq-index {
    padding-top: 44px;
    padding-bottom: 44px;
  }

  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 1fr) 264px;
    gap: 56px;
    padding-top: 64px;
    padding-bottom: 72px;
  }

  .page-faq .faq-side {
    position: sticky;
    top: calc(var(--header-bar-height) + 28px);
  }

  .page-faq .faq-flow {
    grid-template-columns: minmax(0, 1fr) minmax(0, 600px);
    gap: 64px;
    padding-top: 72px;
    padding-bottom: 72px;
  }

  .page-faq .faq-flow h2 {
    font-size: 48px;
  }

  .page-faq .faq-cta {
    padding-top: 64px;
    padding-bottom: 64px;
  }

  .page-faq .faq-cta-actions {
    gap: 24px;
  }
}