.page-faq {
  --faq-hero-bg: linear-gradient(150deg, #0B1B3D 0%, #1E3A6E 78%, #0F2346 100%);
  --faq-card-bg: #FFFFFF;
  --faq-line-gold: rgba(212, 168, 75, 0.55);
  --faq-line-blue: rgba(11, 27, 61, 0.08);
  --faq-tag-gold: rgba(212, 168, 75, 0.16);
  --faq-radius: 2px 18px 18px 18px;
  position: relative;
  background: var(--color-bg-white);
}

/* ========== 首屏 ========== */
.page-faq .faq-hero {
  background: var(--faq-hero-bg);
  color: #FFFFFF;
  margin-top: calc(-1 * var(--header-h));
  padding: calc(var(--header-h) + 48px) 0 56px;
  position: relative;
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 4px;
  background: var(--gradient-gold);
  opacity: 0.75;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  right: -120px;
  top: -120px;
  width: 320px;
  height: 320px;
  border: 1px solid rgba(242, 208, 123, 0.25);
  transform: rotate(45deg);
  border-radius: 32px;
  pointer-events: none;
}

.page-faq .breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: var(--fs-caption);
  color: rgba(245, 247, 250, 0.7);
  margin-bottom: 40px;
}

.page-faq .breadcrumb a {
  color: rgba(245, 247, 250, 0.85);
  text-decoration: none;
  transition: color var(--dur-fast) ease;
}

.page-faq .breadcrumb a:hover {
  color: var(--color-gold-end);
}

.page-faq .breadcrumb-sep {
  color: rgba(245, 247, 250, 0.4);
}

.page-faq .breadcrumb-current {
  color: rgba(245, 247, 250, 0.95);
}

.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

.page-faq .faq-hero-copy .section-label {
  color: var(--color-gold-end);
}

.page-faq .faq-hero-copy h1 {
  font-size: var(--fs-display);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.12;
  margin: 14px 0 16px;
  max-width: 640px;
}

.page-faq .faq-hero-copy p {
  font-size: var(--fs-body);
  line-height: 1.75;
  color: rgba(245, 247, 250, 0.82);
  max-width: 560px;
}

.page-faq .faq-hero-search {
  display: flex;
  flex-direction: column;
  gap: 20px;
  justify-content: center;
}

.page-faq .faq-search-box {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 2px 14px 14px 14px;
  padding: 16px 20px;
  transition: border-color var(--dur-mid) ease, background var(--dur-mid) ease;
}

.page-faq .faq-search-box:focus-within {
  border-color: var(--color-gold-start);
  background: rgba(255, 255, 255, 0.16);
}

.page-faq .faq-search-icon {
  color: var(--color-gold-end);
  flex-shrink: 0;
}

.page-faq .faq-search-input {
  background: transparent;
  border: none;
  outline: none;
  color: #FFFFFF;
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  width: 100%;
}

.page-faq .faq-search-input::placeholder {
  color: rgba(245, 247, 250, 0.55);
}

.page-faq .faq-hot-tags {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-hot-label {
  font-size: var(--fs-caption);
  color: rgba(245, 247, 250, 0.6);
  margin-right: 4px;
}

.page-faq .faq-hot-tag {
  display: inline-block;
  border: 1px solid rgba(255, 255, 255, 0.32);
  color: #F5F7FA;
  font-size: var(--fs-caption);
  text-decoration: none;
  padding: 6px 14px;
  border-radius: 999px;
  transition: background var(--dur-fast) ease, color var(--dur-fast) ease, border-color var(--dur-fast) ease;
}

.page-faq .faq-hot-tag:hover {
  background: var(--gradient-gold);
  border-color: transparent;
  color: var(--color-primary);
  font-weight: 600;
}

/* ========== 主体布局 ========== */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  padding: 56px 0 72px;
  align-items: start;
}

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

/* ========== 问答分组 ========== */
.page-faq .faq-group {
  position: relative;
  padding: 32px 0 8px;
  margin-bottom: 40px;
}

.page-faq .faq-group .chapter-num {
  position: absolute;
  top: -12px;
  right: -8px;
  font-size: 88px;
  font-weight: 800;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(11, 27, 61, 0.09);
  letter-spacing: -0.06em;
  z-index: 0;
  pointer-events: none;
  user-select: none;
}

.page-faq .faq-group-head {
  position: relative;
  z-index: 1;
  margin-bottom: 28px;
  padding-left: 4px;
}

.page-faq .faq-group-title .section-label {
  color: var(--color-gold-start);
  font-weight: 600;
}

.page-faq .faq-group-title h2 {
  font-size: var(--fs-h2);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-primary);
  margin: 8px 0 6px;
}

.page-faq .faq-group-title p {
  font-size: var(--fs-caption);
  color: var(--color-primary-mid);
  opacity: 0.78;
  line-height: 1.6;
}

/* ========== 图片区 ========== */
.page-faq .faq-figure {
  position: relative;
  z-index: 1;
  margin: 0 0 28px;
  border-radius: var(--faq-radius);
  overflow: hidden;
  background: var(--color-bg-soft);
  box-shadow: var(--shadow-card);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  transition: transform var(--dur-slow) var(--ease-ios);
}

.page-faq .faq-figure:hover img {
  transform: scale(1.02);
}

.page-faq .faq-figure-compact {
  max-width: 640px;
}

/* ========== 折叠列表 ========== */
.page-faq .faq-list {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-faq .faq-item {
  background: var(--faq-card-bg);
  border-left: 3px solid var(--color-primary);
  border-radius: 0 14px 14px 14px;
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: box-shadow var(--dur-mid) ease, transform var(--dur-mid) ease;
}

.page-faq .faq-item:hover {
  box-shadow: 0 8px 30px rgba(11, 27, 61, 0.12);
  transform: translateY(-2px);
}

.page-faq .faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  font-size: var(--fs-body);
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.5;
  position: relative;
  transition: color var(--dur-fast) ease;
}

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

.page-faq .faq-item summary::marker {
  content: "";
}

.page-faq .faq-item summary::after {
  content: "+";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  font-size: 22px;
  font-weight: 300;
  color: var(--color-primary-mid);
  border: 1px solid var(--faq-line-blue);
  border-radius: 50%;
  transition: transform var(--dur-mid) var(--ease-ios), background var(--dur-mid) ease, color var(--dur-mid) ease;
}

.page-faq .faq-item[open] summary::after {
  transform: rotate(45deg);
  background: var(--gradient-gold);
  color: var(--color-primary);
  border-color: transparent;
}

.page-faq .faq-item summary:hover {
  color: var(--color-primary);
}

.page-faq .faq-answer {
  padding: 0 24px 22px;
  animation: faqFade var(--dur-mid) var(--ease-ios);
}

.page-faq .faq-answer p {
  margin: 0;
  font-size: var(--fs-body);
  line-height: 1.8;
  color: #3D4A5C;
}

@keyframes faqFade {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ========== 更多链接 ========== */
.page-faq .faq-more-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
  font-size: var(--fs-caption);
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-line-gold);
  padding-bottom: 3px;
  align-self: flex-start;
  transition: color var(--dur-fast) ease, gap var(--dur-fast) ease;
}

.page-faq .faq-more-link:hover {
  color: var(--color-gold-start);
  gap: 12px;
}

/* ========== 版本时间线 ========== */
.page-faq .faq-timeline {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 0;
  margin: 0 0 28px;
  padding: 0;
}

.page-faq .faq-timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: 92px 1fr;
  grid-template-rows: auto auto;
  column-gap: 16px;
  padding: 14px 0;
  border-left: 2px solid var(--faq-line-blue);
  padding-left: 20px;
}

.page-faq .faq-timeline-item::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 22px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gradient-gold);
}

.page-faq .faq-timeline-version {
  grid-row: 1;
  grid-column: 1;
  font-size: var(--fs-h3);
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.page-faq .faq-timeline-label {
  grid-row: 1;
  grid-column: 2;
  font-size: var(--fs-body);
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.4;
}

.page-faq .faq-timeline-note {
  grid-row: 2;
  grid-column: 2;
  font-size: var(--fs-caption);
  color: var(--color-primary-mid);
  opacity: 0.75;
  line-height: 1.55;
}

/* ========== 认证徽章 ========== */
.page-faq .faq-badge-row {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 28px;
}

.page-faq .faq-badge {
  background: var(--faq-tag-gold);
  border: 1px solid var(--faq-line-gold);
  border-radius: 0 12px 12px 12px;
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: background var(--dur-mid) ease, transform var(--dur-mid) ease;
}

.page-faq .faq-badge:hover {
  background: rgba(212, 168, 75, 0.26);
  transform: translateY(-2px);
}

.page-faq .faq-badge-title {
  font-size: var(--fs-h3);
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.2;
}

.page-faq .faq-badge-note {
  font-size: var(--fs-small);
  color: var(--color-primary-mid);
  line-height: 1.5;
}

/* ========== 侧边目录 ========== */
.page-faq .faq-toc {
  display: none;
}

/* ========== 底部联系 ========== */
.page-faq .faq-contact {
  background: var(--color-primary-deep);
  position: relative;
  overflow: hidden;
  padding: 56px 0 64px;
}

.page-faq .faq-contact::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 4px;
  background: var(--gradient-gold);
}

.page-faq .faq-contact::after {
  content: "";
  position: absolute;
  right: -80px;
  bottom: -80px;
  width: 240px;
  height: 240px;
  border: 1px solid rgba(242, 208, 123, 0.16);
  transform: rotate(45deg);
  border-radius: 24px;
  pointer-events: none;
}

.page-faq .faq-contact-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 28px;
  align-items: flex-start;
}

.page-faq .faq-contact-copy .section-label {
  color: var(--color-gold-end);
}

.page-faq .faq-contact-copy h2 {
  font-size: var(--fs-h2);
  font-weight: 800;
  color: #FFFFFF;
  margin: 10px 0 12px;
  letter-spacing: -0.02em;
}

.page-faq .faq-contact-copy p {
  font-size: var(--fs-body);
  color: rgba(245, 247, 250, 0.72);
  line-height: 1.8;
  margin: 0;
}

.page-faq .faq-contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.page-faq .faq-contact-actions .btn {
  border-radius: 2px 14px 14px 14px;
}

.page-faq .faq-contact-actions .btn-primary {
  background: var(--gradient-gold);
  border: none;
  color: var(--color-primary);
  box-shadow: var(--shadow-cta);
}

.page-faq .faq-contact-actions .btn-ghost {
  border: 1px solid rgba(255, 255, 255, 0.4);
  color: #F5F7FA;
}

.page-faq .faq-contact-actions .btn-ghost:hover {
  background: rgba(255, 255, 255, 0.08);
}

/* ========== 平板与桌面 ========== */
@media (min-width: 768px) {
  .page-faq .faq-hero {
    padding: calc(var(--header-h) + 72px) 0 72px;
  }

  .page-faq .faq-hero-grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 64px;
    align-items: center;
  }

  .page-faq .faq-body {
    grid-template-columns: 1fr 240px;
    gap: 56px;
    padding: 72px 0 88px;
  }

  .page-faq .faq-group {
    padding: 36px 0 16px;
    margin-bottom: 56px;
  }

  .page-faq .faq-group .chapter-num {
    font-size: 120px;
    right: -16px;
  }

  .page-faq .faq-group-title h2 {
    font-size: 30px;
  }

  .page-faq .faq-item summary {
    padding: 22px 28px;
  }

  .page-faq .faq-answer {
    padding-left: 28px;
  }

  .page-faq .faq-timeline-item {
    grid-template-columns: 110px 1fr;
    column-gap: 20px;
    padding-left: 28px;
  }

  .page-faq .faq-badge-row {
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
  }

  .page-faq .faq-toc {
    display: block;
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-faq .faq-toc-inner {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 22px 18px;
    background: rgba(255, 255, 255, 0.82);
    border: 1px solid var(--faq-line-blue);
    border-radius: 0 14px 14px 14px;
    box-shadow: var(--shadow-card);
    backdrop-filter: blur(8px);
  }

  .page-faq .faq-toc-label {
    font-size: var(--fs-small);
    font-weight: 700;
    color: var(--color-gold-start);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--faq-line-blue);
    margin-bottom: 8px;
  }

  .page-faq .faq-toc a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 8px;
    font-size: var(--fs-caption);
    font-weight: 500;
    color: var(--color-primary-mid);
    text-decoration: none;
    border-radius: 0 8px 8px 8px;
    transition: background var(--dur-fast) ease, color var(--dur-fast) ease, padding-left var(--dur-fast) ease;
  }

  .page-faq .faq-toc a .faq-toc-index {
    color: var(--color-gold-start);
    font-weight: 700;
  }

  .page-faq .faq-toc a:hover {
    background: var(--faq-tag-gold);
    color: var(--color-primary);
    padding-left: 12px;
  }

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

  .page-faq .faq-contact-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-body {
    grid-template-columns: 1fr 280px;
    gap: 72px;
  }

  .page-faq .faq-hero-copy h1 {
    font-size: 52px;
  }

  .page-faq .faq-group .chapter-num {
    font-size: 144px;
  }
}