.page-faq {
  --faq-orange: var(--color-accent);
  --faq-green: var(--color-primary);
  --faq-bg: var(--color-bg);
  --faq-sidebar-w: 260px;
  background: var(--faq-bg);
}

/* ========== Hero 区 ========== */
.page-faq__hero {
  position: relative;
  overflow: hidden;
  background: var(--color-primary);
  padding: 56px 0 72px;
}

.page-faq__hero::before {
  content: '';
  position: absolute;
  right: -110px;
  top: -110px;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  border: 48px solid rgba(247, 127, 0, 0.22);
  pointer-events: none;
}

.page-faq__hero::after {
  content: '';
  position: absolute;
  left: -80px;
  bottom: -60px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  border: 2px solid rgba(168, 194, 86, 0.28);
  pointer-events: none;
}

.page-faq__hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-faq__hero-copy {
  max-width: 720px;
}

.page-faq__breadcrumb {
  margin-bottom: 16px;
}

.page-faq__breadcrumb .breadcrumb__link {
  color: rgba(255, 255, 255, 0.72);
}

.page-faq__breadcrumb .breadcrumb__link:hover {
  color: var(--color-accent-hover);
}

.page-faq__breadcrumb .breadcrumb__current {
  color: var(--color-accent-hover);
}

.page-faq__title {
  margin: 0 0 16px;
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: var(--text-h1);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.page-faq__title span {
  display: block;
}

.page-faq__title-accent {
  display: block;
  margin-top: 10px;
  color: var(--color-accent-hover);
  font-size: 0.58em;
  font-weight: 700;
  line-height: 1.3;
}

.page-faq__lead {
  margin: 0 0 24px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 1.0625rem;
  line-height: 1.8;
  max-width: 620px;
}

.page-faq__hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq__hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.92);
  font-size: var(--text-small);
  font-weight: 500;
  letter-spacing: 0.02em;
}

.page-faq__hero-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-lime);
  flex-shrink: 0;
}

.page-faq__hero-figure {
  margin: 0;
  display: flex;
  justify-content: center;
  align-items: center;
}

.page-faq__hero-img {
  width: min(100%, 400px);
  height: auto;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.06);
  object-fit: cover;
  box-shadow: var(--shadow-lg);
}

/* ========== 主体区 ========== */
.page-faq__body {
  padding: 40px 0 80px;
}

.page-faq__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: start;
}

/* 左侧目录 */
.page-faq__index {
  min-width: 0;
}

.page-faq__index-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}

.page-faq__index-kicker {
  margin: 0 0 6px;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--color-accent);
  text-transform: uppercase;
}

.page-faq__index-title {
  margin: 0 0 18px;
  font-family: var(--font-heading);
  font-size: var(--text-h3);
  font-weight: 800;
  color: var(--color-ink);
}

.page-faq__index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-faq__index-item {
  margin: 0;
}

.page-faq__index-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--color-gray);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.page-faq__index-link:hover,
.page-faq__index-link[data-active] {
  background: rgba(11, 59, 46, 0.07);
  color: var(--color-primary);
}

.page-faq__index-num {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 0.875rem;
  color: var(--color-accent);
  min-width: 30px;
}

.page-faq__index-text {
  font-weight: 500;
}

/* 右侧问答 */
.page-faq__answers {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.page-faq__group {
  scroll-margin-top: 24px;
}

.page-faq__group-head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 20px;
  padding-left: 4px;
}

.page-faq__group-num {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 900;
  line-height: 1;
  color: var(--color-accent);
  letter-spacing: -0.04em;
  flex-shrink: 0;
  width: 72px;
  text-align: left;
}

.page-faq__group-heading h2 {
  margin: 2px 0 4px;
  font-family: var(--font-heading);
  font-size: var(--text-h3);
  font-weight: 800;
  color: var(--color-ink);
  line-height: 1.2;
}

.page-faq__group-heading p {
  margin: 0;
  color: var(--color-gray);
  font-size: var(--text-small);
  line-height: 1.5;
}

/* 手风琴条目 */
.page-faq__item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-white);
  margin-bottom: 12px;
  overflow: hidden;
  transition: box-shadow var(--transition-base);
}

.page-faq__item:hover {
  box-shadow: var(--shadow-md);
}

.page-faq__item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px 18px 24px;
  cursor: pointer;
  list-style: none;
  position: relative;
  transition: background var(--transition-fast);
}

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

.page-faq__item summary:hover {
  background: rgba(11, 59, 46, 0.03);
}

.page-faq__item[open] {
  border-left: 4px solid var(--color-accent);
}

.page-faq__item[open] summary {
  border-bottom: 1px solid var(--color-border);
  background: rgba(247, 127, 0, 0.04);
}

.page-faq__q {
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-ink);
  line-height: 1.5;
  flex: 1;
}

.page-faq__icon {
  position: relative;
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-primary);
  transition: background var(--transition-fast), transform var(--transition-base);
}

.page-faq__icon::before,
.page-faq__icon::after {
  content: '';
  position: absolute;
  background: var(--color-white);
  border-radius: 2px;
}

.page-faq__icon::before {
  top: 50%;
  left: 6px;
  right: 6px;
  height: 2px;
  transform: translateY(-50%);
}

.page-faq__icon::after {
  top: 6px;
  bottom: 6px;
  left: 50%;
  width: 2px;
  transform: translateX(-50%);
}

.page-faq__item[open] .page-faq__icon {
  background: var(--color-accent);
  transform: rotate(180deg);
}

.page-faq__item[open] .page-faq__icon::after {
  opacity: 0;
}

/* 答案内容 */
.page-faq__answer {
  padding: 20px 20px 18px 24px;
  animation: page-faq-reveal 0.28s ease both;
}

.page-faq__answer p {
  margin: 0 0 12px;
  color: var(--color-gray);
  line-height: 1.75;
  font-size: 0.9375rem;
}

.page-faq__answer p:last-child {
  margin-bottom: 16px;
}

.page-faq__answer a {
  color: var(--color-teal);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition-fast);
}

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

@keyframes page-faq-reveal {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 步骤编号 */
.page-faq__steps {
  list-style: none;
  counter-reset: faq-step;
  margin: 12px 0 4px;
  padding: 0;
}

.page-faq__steps li {
  counter-increment: faq-step;
  position: relative;
  padding-left: 40px;
  margin-bottom: 10px;
  color: var(--color-gray);
  font-size: 0.9375rem;
  line-height: 1.6;
}

.page-faq__steps li::before {
  content: counter(faq-step);
  position: absolute;
  left: 0;
  top: 2px;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-white);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.8125rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 复制按钮 */
.page-faq__copy {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  padding: 6px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-white);
  color: var(--color-gray);
  font-size: var(--text-small);
  font-weight: 500;
  cursor: pointer;
  transition: border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
}

.page-faq__copy:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: rgba(247, 127, 0, 0.06);
}

/* 图片区 */
.page-faq__figure {
  margin: 16px 0;
  padding: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-white);
  border: 1px solid var(--color-border);
}

.page-faq__figure-img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq__figure figcaption {
  padding: 10px 16px;
  font-size: var(--text-small);
  color: var(--color-gray);
  background: rgba(11, 59, 46, 0.04);
  line-height: 1.5;
}

/* 反馈 */
.page-faq__feedback {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
  padding: 10px 4px;
}

.page-faq__feedback-label {
  font-size: var(--text-small);
  color: var(--color-gray);
  margin-right: 4px;
}

.page-faq__feedback-btn {
  padding: 5px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-white);
  color: var(--color-gray);
  font-size: var(--text-small);
  cursor: pointer;
  transition: border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
}

.page-faq__feedback-btn:hover {
  border-color: var(--color-lime);
  color: var(--color-primary);
  background: rgba(168, 194, 86, 0.14);
}

/* 底部联系卡 */
.page-faq__contact {
  margin-top: 12px;
}

.page-faq__contact-card {
  background: var(--color-primary);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.page-faq__contact-card::after {
  content: '?';
  position: absolute;
  right: -10px;
  bottom: -50px;
  font-family: var(--font-heading);
  font-size: 10rem;
  font-weight: 900;
  color: rgba(247, 127, 0, 0.16);
  line-height: 1;
  pointer-events: none;
}

.page-faq__contact-title {
  margin: 0 0 10px;
  font-family: var(--font-heading);
  font-size: var(--text-h3);
  font-weight: 800;
}

.page-faq__contact-text {
  margin: 0 0 20px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.9375rem;
  line-height: 1.7;
  max-width: 420px;
}

.page-faq__contact-btn {
  position: relative;
  z-index: 1;
}

/* ========== 桌面端 ========== */
@media (min-width: 992px) {
  .page-faq__hero {
    padding: 72px 0 96px;
  }

  .page-faq__hero-grid {
    grid-template-columns: 1fr 400px;
    gap: 48px;
    align-items: center;
  }

  .page-faq__body {
    padding: 56px 0 96px;
  }

  .page-faq__layout {
    grid-template-columns: var(--faq-sidebar-w) 1fr;
    gap: 48px;
  }

  .page-faq__index {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-faq__index-card {
    padding: 28px 22px;
  }

  .page-faq__group-head {
    margin-bottom: 24px;
  }

  .page-faq__group-num {
    font-size: 3.5rem;
    width: 84px;
  }

  .page-faq__answer {
    padding: 24px 24px 20px 28px;
  }

  .page-faq__figure {
    margin: 20px 0;
  }

  .page-faq__contact-card {
    padding: 40px 36px;
  }

  .page-faq__contact-card::after {
    right: 20px;
    bottom: -40px;
    font-size: 12rem;
  }
}

/* 大型桌面端 */
@media (min-width: 1400px) {
  .page-faq__hero-grid {
    grid-template-columns: 1fr 460px;
  }

  .page-faq__layout {
    grid-template-columns: 280px 1fr;
    gap: 56px;
  }
}