.page-faq {
  position: relative;
  background:
    linear-gradient(rgba(10, 37, 64, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10, 37, 64, 0.035) 1px, transparent 1px),
    var(--color-light-gray);
  background-size: 24px 24px;
  overflow-x: hidden;
}

/* ========== Hero ========== */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 44px 0 56px;
  background:
    linear-gradient(135deg, rgba(255, 107, 0, 0.1) 0%, transparent 50%),
    var(--color-primary);
  color: var(--color-white);
}

.page-faq .faq-hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 12%;
  width: 2px;
  height: 100%;
  background: rgba(255, 255, 255, 0.1);
  transform: skewX(-12deg);
}

.page-faq .faq-hero::after {
  content: 'FAQ / 24H';
  position: absolute;
  right: 8px;
  bottom: -18px;
  font-family: var(--font-mono);
  font-size: 64px;
  font-weight: 700;
  line-height: 1;
  color: rgba(255, 255, 255, 0.05);
  pointer-events: none;
  letter-spacing: -0.04em;
  white-space: nowrap;
}

.page-faq .faq-hero .breadcrumb {
  position: relative;
  z-index: 1;
  margin-bottom: 28px;
}

.page-faq .faq-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 32px;
}

.page-faq .faq-hero-kicker {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--color-accent);
  border: 1px solid rgba(255, 255, 255, 0.28);
  padding: 5px 10px;
  margin-bottom: 18px;
  text-transform: uppercase;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 27px;
  line-height: 1.22;
  letter-spacing: -0.01em;
  margin: 0 0 16px;
  max-width: 680px;
}

.page-faq .faq-hero-lead {
  font-size: 16px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.86);
  margin: 0 0 24px;
  max-width: 600px;
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-hero-board {
  position: relative;
  background: var(--color-accent);
  padding: 22px 20px;
  max-width: 340px;
  transform: rotate(1deg);
}

.page-faq .faq-hero-board::before {
  content: '';
  position: absolute;
  inset: 6px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  pointer-events: none;
}

.page-faq .faq-hero-board::after {
  content: '';
  position: absolute;
  top: 50%;
  right: -20px;
  width: 20px;
  height: 2px;
  background: var(--color-white);
  transform: translateY(-50%);
}

.page-faq .faq-hero-board .panel-label {
  position: relative;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: rgba(255, 255, 255, 0.9);
  display: block;
  margin-bottom: 12px;
}

.page-faq .faq-hero-board ul {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-faq .faq-hero-board li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.25);
  font-size: 14px;
  color: var(--color-white);
}

.page-faq .faq-hero-board li:last-child {
  border-bottom: none;
}

.page-faq .faq-hero-board strong {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-white);
  min-width: 58px;
}

/* ========== 移动端分类标签 ========== */
.page-faq .faq-tabs {
  position: sticky;
  top: 56px;
  z-index: 30;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-light-gray);
}

.page-faq .faq-tabs-inner {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 10px 0;
  scrollbar-width: none;
}

.page-faq .faq-tabs-inner::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-tabs-inner a {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-primary);
  border: 1px solid var(--color-mid-gray);
  padding: 7px 14px;
  text-decoration: none;
  background: var(--color-white);
  transition: border-color var(--transition-fast), color var(--transition-fast);
  scroll-margin-top: 120px;
}

.page-faq .faq-tabs-inner a:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.page-faq .faq-tabs-inner a span {
  color: var(--color-accent);
  margin-right: 5px;
}

/* ========== 布局 ========== */
.page-faq .faq-layout {
  display: block;
}

.page-faq .faq-index {
  display: none;
}

.page-faq .faq-main {
  padding-top: 36px;
  position: relative;
}

.page-faq .faq-category {
  position: relative;
  scroll-margin-top: 110px;
  background: var(--color-white);
  border: 1px solid var(--color-mid-gray);
  border-top: 4px solid var(--color-accent);
  padding: 24px 18px 10px;
  margin-bottom: 40px;
}

.page-faq .faq-category::before {
  content: '';
  position: absolute;
  top: -4px;
  right: -1px;
  width: 54px;
  height: 4px;
  background: var(--color-primary);
}

.page-faq .faq-category::after {
  content: '';
  position: absolute;
  top: -4px;
  right: -1px;
  width: 14px;
  height: 4px;
  background: var(--color-mid-gray);
}

.page-faq .faq-category-head {
  border-bottom: 1px solid var(--color-light-gray);
  padding-bottom: 16px;
  margin-bottom: 18px;
}

.page-faq .faq-category-head .section-index {
  display: inline-flex;
  align-items: center;
  position: relative;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  background: var(--color-pale-blue);
  padding: 4px 10px;
  margin-bottom: 12px;
}

.page-faq .faq-category-head h2 {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 24px;
  line-height: 1.2;
  color: var(--color-primary);
  margin: 0 0 6px;
}

.page-faq .faq-category-head p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-mid-gray);
  margin: 0;
}

/* ========== 手风琴 ========== */
.page-faq .faq-item {
  border-bottom: 1px solid var(--color-light-gray);
}

.page-faq .faq-question {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 18px 4px;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
  color: var(--color-black);
  line-height: 1.4;
  transition: color var(--transition-fast);
}

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

.page-faq .faq-q-index {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--color-accent);
  background: var(--color-pale-blue);
  padding: 3px 7px;
}

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

.page-faq .faq-item[data-open] .faq-q-text {
  color: var(--color-primary);
}

.page-faq .faq-icon {
  position: relative;
  flex-shrink: 0;
  width: 18px;
  height: 18px;
}

.page-faq .faq-icon::before,
.page-faq .faq-icon::after {
  content: '';
  position: absolute;
  background: var(--color-accent);
  border-radius: 1px;
  transition: transform 0.25s ease;
}

.page-faq .faq-icon::before {
  left: 50%;
  top: 3px;
  width: 2px;
  height: 12px;
  transform: translateX(-50%);
}

.page-faq .faq-icon::after {
  top: 50%;
  left: 3px;
  width: 12px;
  height: 2px;
  transform: translateY(-50%);
}

.page-faq .faq-item[data-open] .faq-icon::before {
  transform: translateX(-50%) rotate(45deg);
}

.page-faq .faq-item[data-open] .faq-icon::after {
  transform: translateY(-50%) rotate(45deg);
}

/* 答案默认全部展开（无 JS 时完整可读） */
.page-faq .faq-answer {
  max-height: 1200px;
  overflow: hidden;
}

.page-faq .faq-answer-inner {
  padding: 0 4px 18px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-dark-gray);
}

.page-faq .faq-answer-inner p {
  margin: 0 0 10px;
}

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

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

/* JS 可用后，由 data-open 控制展开/收拢 */
.js-reveal .page-faq .faq-item:not([data-open]) .faq-answer {
  max-height: 0;
  transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.js-reveal .page-faq .faq-item[data-open] .faq-answer {
  max-height: 1200px;
  transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========== 图片 ========== */
.page-faq .faq-media {
  margin: 0 0 16px;
  border: 1px solid var(--color-mid-gray);
  background: var(--color-light-gray);
  padding: 6px;
}

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

.page-faq .faq-media figcaption {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-mid-gray);
  padding: 8px 2px 2px;
  letter-spacing: 0.04em;
}

/* ========== 索引目录 ========== */
.page-faq .faq-index-sticky {
  position: sticky;
  top: 96px;
  padding: 40px 0 0;
}

.page-faq .faq-index-sticky .panel-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--color-mid-gray);
  margin-bottom: 12px;
}

.page-faq .faq-index-list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  border: 1px solid var(--color-mid-gray);
  border-top: 4px solid var(--color-primary);
  background: var(--color-white);
}

.page-faq .faq-index-list li {
  border-bottom: 1px solid var(--color-light-gray);
}

.page-faq .faq-index-list li:last-child {
  border-bottom: none;
}

.page-faq .faq-index-list a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 12px;
  text-decoration: none;
  color: var(--color-black);
  transition: background var(--transition-fast), color var(--transition-fast);
}

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

.page-faq .idx-num {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--color-accent);
}

.page-faq .idx-name {
  flex: 1;
  font-weight: 600;
  font-size: 14px;
}

.page-faq .idx-arrow {
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--color-mid-gray);
  transition: transform var(--transition-fast), color var(--transition-fast);
}

.page-faq .faq-index-list a:hover .idx-arrow {
  transform: translateX(4px);
  color: var(--color-accent);
}

.page-faq .faq-index-help {
  background: var(--color-pale-blue);
  border: 1px solid #d8e3f8;
  padding: 14px;
}

.page-faq .faq-index-help p {
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-dark-gray);
  margin: 0 0 10px;
}

.page-faq .faq-index-help a {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: 1px solid var(--color-accent);
  padding-bottom: 2px;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.page-faq .faq-index-help a:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

/* ========== 底部 CTA ========== */
.page-faq .faq-cta {
  position: relative;
  background: var(--color-primary);
  color: var(--color-white);
  padding: 52px 0 60px;
  overflow: hidden;
}

.page-faq .faq-cta::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 4px;
  background: repeating-linear-gradient(90deg, var(--color-accent) 0 36px, transparent 36px 72px);
}

.page-faq .faq-cta::after {
  content: '';
  position: absolute;
  right: -40px;
  bottom: -50px;
  width: 200px;
  height: 200px;
  border: 2px solid rgba(255, 255, 255, 0.06);
  transform: rotate(18deg);
  pointer-events: none;
}

.page-faq .faq-cta-copy {
  position: relative;
  z-index: 1;
}

.page-faq .faq-cta .section-index {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  border: 1px solid rgba(255, 255, 255, 0.3);
  padding: 4px 10px;
  margin-bottom: 14px;
}

.page-faq .faq-cta h2 {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 26px;
  line-height: 1.2;
  margin: 0 0 12px;
}

.page-faq .faq-cta p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 15px;
  line-height: 1.7;
  margin: 0 0 24px;
  max-width: 520px;
}

.page-faq .faq-cta-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 8px;
}

.page-faq .faq-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: flex-start;
}

/* ========== 桌面端适配 ========== */
@media (min-width: 768px) {
  .page-faq .faq-hero {
    padding: 64px 0 80px;
  }

  .page-faq .faq-hero h1 {
    font-size: 38px;
  }

  .page-faq .faq-hero-grid {
    grid-template-columns: 1fr 240px;
    gap: 40px;
    align-items: center;
  }

  .page-faq .faq-hero-board {
    max-width: none;
  }

  .page-faq .faq-category {
    padding: 30px 26px 12px;
  }

  .page-faq .faq-category-head h2 {
    font-size: 28px;
  }

  .page-faq .faq-cta-inner {
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 32px;
  }

  .page-faq .faq-cta p {
    margin-bottom: 0;
  }
}

@media (min-width: 992px) {
  .page-faq .faq-hero {
    padding: 84px 0 100px;
  }

  .page-faq .faq-hero::after {
    font-size: 150px;
    right: 24px;
  }

  .page-faq .faq-hero h1 {
    font-size: 48px;
  }

  .page-faq .faq-hero-grid {
    grid-template-columns: 1fr 280px;
    gap: 52px;
  }

  .page-faq .faq-tabs {
    display: none;
  }

  .page-faq .faq-layout {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 44px;
    align-items: start;
  }

  .page-faq .faq-index {
    display: block;
  }

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

  .page-faq .faq-cta {
    padding: 64px 0 72px;
  }

  .page-faq .faq-cta h2 {
    font-size: 32px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-answer,
  .page-faq .faq-icon::before,
  .page-faq .faq-icon::after,
  .page-faq .faq-index-list a,
  .page-faq .idx-arrow {
    transition: none !important;
  }
}