@keyframes faq-float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}
@keyframes faq-tilt {
  0%, 100% {
    transform: rotate(0deg);
  }
  50% {
    transform: rotate(3deg);
  }
}

.page-faq {
  --faq-hero-bg: linear-gradient(135deg, #2C3E50 0%, #1B2A3A 100%);
  background: var(--bg-page);
}
.page-faq .page-shell {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: 20px;
}
.page-faq img {
  max-width: 100%;
  height: auto;
}

/* ---------- 首屏 · 深灰蓝渐变 ---------- */
.page-faq .faq-hero {
  background: var(--faq-hero-bg);
  color: var(--text-light);
  padding: 40px 0 52px;
}
.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  margin-bottom: 28px;
}
.page-faq .breadcrumb a {
  color: rgba(255,255,255,.72);
  text-decoration: none;
}
.page-faq .breadcrumb a:hover {
  color: var(--accent);
}
.page-faq .breadcrumb .crumb-sep {
  color: rgba(255,255,255,.4);
}
.page-faq .breadcrumb [aria-current="page"] {
  color: var(--accent);
}
.page-faq .faq-hero-head h1 {
  font-size: 32px;
  line-height: 1.2;
  letter-spacing: .02em;
  margin: 0 0 16px;
}
.page-faq .faq-hero-lead {
  font-size: 17px;
  line-height: 1.7;
  color: rgba(255,255,255,.82);
  max-width: 780px;
  margin: 0;
}
.page-faq .faq-hero-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 28px;
}
.page-faq .stat-chip {
  background: rgba(255,255,255,.08);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.page-faq .stat-num {
  font-family: var(--font-label);
  font-size: 22px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}
.page-faq .stat-label {
  font-size: 13px;
  color: rgba(255,255,255,.62);
}
.page-faq .faq-anchor-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}
.page-faq .faq-anchor-tags .tag {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-family: var(--font-label);
  transition: transform var(--transition), box-shadow var(--transition);
}
.page-faq .faq-anchor-tags .tag:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0,0,0,.18);
}

/* ---------- 索引区标题组件 ---------- */
.page-faq .faq-section-head {
  margin-bottom: 28px;
}
.page-faq .faq-section-title {
  font-size: 26px;
  line-height: 1.25;
  color: var(--text-dark);
  margin: 0 0 8px;
}
.page-faq .faq-section-sub {
  font-size: 15px;
  line-height: 1.65;
  color: var(--text-muted-a);
  margin: 0;
}
.page-faq .faq-section-head--light .faq-section-title {
  color: var(--text-light);
}
.page-faq .faq-section-head--light .faq-section-sub {
  color: var(--text-muted-b);
}

/* ---------- 三步找片 ---------- */
.page-faq .faq-steps-section {
  background: var(--bg-card);
  padding: 56px 0 64px;
}
.page-faq .faq-steps-grid {
  display: grid;
  gap: 16px;
  margin-top: 32px;
}
.page-faq .faq-step-card {
  border-radius: var(--radius-lg);
  padding: 24px;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}
.page-faq .faq-step-card--one {
  background: var(--primary);
}
.page-faq .faq-step-card--two {
  background: var(--cache);
}
.page-faq .faq-step-card--three {
  background: var(--status-new);
  color: var(--text-light);
}
.page-faq .faq-step-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 32px rgba(0,0,0,.14);
}
.page-faq .faq-step-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}
.page-faq .faq-step-num {
  font-family: var(--font-label);
  font-size: 38px;
  font-weight: 700;
  line-height: 1;
  color: rgba(26,26,26,.28);
  background: rgba(255,255,255,.32);
  border-radius: 14px;
  padding: 10px 14px;
}
.page-faq .faq-step-card--three .faq-step-num {
  color: rgba(255,255,255,.36);
  background: rgba(255,255,255,.14);
}
.page-faq .faq-step-icon {
  font-family: var(--font-label);
  font-size: 28px;
  color: rgba(26,26,26,.45);
}
.page-faq .faq-step-card--three .faq-step-icon {
  color: rgba(255,255,255,.55);
}
.page-faq .faq-step-title {
  font-size: 20px;
  margin: 0 0 10px;
}
.page-faq .faq-step-brief {
  font-size: 15px;
  line-height: 1.65;
  margin: 0;
}
.page-faq .faq-step-brief a {
  color: inherit;
  font-weight: 700;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}
.page-faq .faq-step-more {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  margin-top: 0;
  padding-top: 0;
  border-top: none;
  font-size: 13px;
  line-height: 1.6;
  color: rgba(26,26,26,.66);
  transition: max-height .35s ease, opacity .2s ease, margin-top .2s ease, padding-top .2s ease;
}
.page-faq .faq-step-card--three .faq-step-more {
  color: rgba(255,255,255,.82);
}
.page-faq .faq-step-card:hover .faq-step-more,
.page-faq .faq-step-card:focus-within .faq-step-more {
  max-height: 180px;
  opacity: 1;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed rgba(26,26,26,.2);
}
.page-faq .faq-step-card--three:hover .faq-step-more,
.page-faq .faq-step-card--three:focus-within .faq-step-more {
  border-top: 1px dashed rgba(255,255,255,.28);
}
@media (max-width: 719px) {
  .page-faq .faq-step-more {
    max-height: none;
    opacity: 1;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px dashed rgba(26,26,26,.2);
  }
  .page-faq .faq-step-card--three .faq-step-more {
    border-top: 1px dashed rgba(255,255,255,.28);
  }
}
.page-faq .faq-steps-link {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

/* ---------- 页面内按钮组 ---------- */
.page-faq .faq-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 15px;
  text-decoration: none;
  transition: transform var(--transition), box-shadow var(--transition);
}
.page-faq .faq-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(0,0,0,.14);
}
.page-faq .faq-btn--primary {
  background: var(--primary);
  color: var(--text-dark);
}
.page-faq .faq-btn--ghost {
  background: transparent;
  border: 2px solid var(--border);
  color: var(--text-dark);
}
.page-faq .faq-btn--light {
  background: var(--accent);
  color: var(--text-dark);
}

/* ---------- 双端同步 · 墨绿背景 ---------- */
.page-faq .faq-sync-section {
  background: var(--bg-section-green);
  color: var(--text-light);
  padding: 56px 0 64px;
}
.page-faq .sync-grid {
  display: grid;
  gap: 36px;
  align-items: center;
}
.page-faq .sync-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.page-faq .phone-frame {
  width: 200px;
  max-width: 100%;
  border-radius: 36px;
  background: #0D1520;
  padding: 10px 7px 12px;
  border: 2px solid rgba(255,255,255,.22);
  box-shadow: 0 24px 48px rgba(0,0,0,.35);
  position: relative;
  animation: faq-float 4s ease-in-out infinite;
}
.page-faq .phone-frame::before {
  content: "";
  position: absolute;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  width: 54px;
  height: 5px;
  border-radius: 999px;
  background: rgba(255,255,255,.24);
  z-index: 2;
}
.page-faq .phone-frame img {
  display: block;
  width: 100%;
  height: 390px;
  object-fit: cover;
  border-radius: 28px;
}
.page-faq .sync-caption {
  font-family: var(--font-label);
  font-size: 13px;
  color: rgba(255,255,255,.55);
  letter-spacing: .08em;
}
.page-faq .sync-content .faq-section-head {
  margin-bottom: 24px;
}
.page-faq .sync-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 20px;
}
.page-faq .sync-step {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.page-faq .sync-step-num {
  flex: 0 0 36px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-family: var(--font-label);
  font-weight: 700;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.page-faq .sync-step:nth-child(1) .sync-step-num {
  background: var(--accent);
  color: var(--text-dark);
}
.page-faq .sync-step:nth-child(2) .sync-step-num {
  background: var(--cache);
  color: var(--text-dark);
}
.page-faq .sync-step:nth-child(3) .sync-step-num {
  background: var(--status-updating);
  color: var(--text-dark);
}
.page-faq .sync-step-body h3 {
  font-size: 18px;
  margin: 0 0 6px;
}
.page-faq .sync-step-body p {
  font-size: 14px;
  line-height: 1.65;
  color: rgba(255,255,255,.68);
  margin: 0;
}
.page-faq .sync-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

/* ---------- 订阅导出 · 橙黄面板 ---------- */
.page-faq .faq-export-section {
  background: var(--bg-page);
  padding: 56px 0 64px;
}
.page-faq .export-panel {
  background: linear-gradient(120deg, var(--primary), var(--accent));
  border-radius: var(--radius-lg);
  padding: 28px 24px 32px;
  color: var(--text-dark);
  box-shadow: 0 20px 40px rgba(255,165,0,.22);
}
.page-faq .export-head {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.page-faq .export-icon {
  width: 80px;
  height: 80px;
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 10px 24px rgba(0,0,0,.14);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.page-faq .export-icon img {
  display: block;
  width: 80px;
  height: 80px;
  object-fit: cover;
  animation: faq-tilt 5s ease-in-out infinite;
}
.page-faq .export-heading h2 {
  font-size: 24px;
  margin: 0 0 6px;
}
.page-faq .export-heading p {
  font-size: 15px;
  line-height: 1.6;
  color: rgba(26,26,26,.66);
  margin: 0;
}
.page-faq .export-inner {
  display: grid;
  gap: 28px;
}
.page-faq .export-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-faq .export-step {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: rgba(255,255,255,.55);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  font-size: 15px;
  line-height: 1.65;
}
.page-faq .export-step-num {
  flex: 0 0 32px;
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: var(--text-dark);
  color: var(--accent);
  font-family: var(--font-label);
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.page-faq .export-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}
.page-faq .export-meta .badge {
  font-family: var(--font-label);
  font-size: 13px;
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  background: rgba(255,255,255,.78);
  color: var(--text-dark);
  border: 1px solid rgba(26,26,26,.18);
}
.page-faq .export-batch {
  background: rgba(255,255,255,.72);
  border: 1px solid rgba(255,255,255,.6);
  border-radius: var(--radius-md);
  padding: 20px 22px;
}
.page-faq .export-batch h3 {
  font-size: 17px;
  margin: 0 0 12px;
}
.page-faq .export-batch ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}
.page-faq .export-batch li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 12px;
  border-radius: var(--radius-xs);
  background: rgba(26,26,26,.05);
  font-size: 14px;
}
.page-faq .export-batch li span {
  font-family: var(--font-label);
  font-weight: 700;
}
.page-faq .export-batch .export-batch-total {
  background: var(--accent);
  font-weight: 700;
}

/* ---------- FAQ · 可展开问答 ---------- */
.page-faq .faq-questions-section {
  background: var(--bg-card-alt);
  padding: 56px 0 64px;
}
.page-faq .faq-list {
  display: grid;
  gap: 14px;
}
.page-faq .faq-item {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  border-left: 6px solid var(--tag-purple);
  transition: box-shadow var(--transition);
}
.page-faq .faq-item:nth-child(2) {
  border-left-color: var(--tag-teal);
}
.page-faq .faq-item:nth-child(3) {
  border-left-color: var(--tag-pink);
}
.page-faq .faq-item:nth-child(4) {
  border-left-color: var(--tag-orange);
}
.page-faq .faq-item:nth-child(5) {
  border-left-color: var(--status-updating);
}
.page-faq .faq-item:nth-child(6) {
  border-left-color: var(--tag-red);
}
.page-faq .faq-item:nth-child(7) {
  border-left-color: var(--cache);
}
.page-faq .faq-item[open] {
  box-shadow: 0 12px 28px rgba(0,0,0,.06);
}
.page-faq .faq-q {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 8px;
  padding: 14px 18px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-dark);
  cursor: pointer;
  border-radius: var(--radius-pill);
  background: rgba(255,255,255,.5);
  transition: background var(--transition);
}
.page-faq .faq-item:hover .faq-q {
  background: rgba(255,165,0,.08);
}
.page-faq .faq-q::-webkit-details-marker {
  display: none;
}
.page-faq .faq-q::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 28px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(255,165,0,.12);
  color: var(--primary);
  font-family: var(--font-label);
  font-size: 20px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition), background var(--transition);
}
.page-faq .faq-item[open] .faq-q::after {
  content: "−";
  background: var(--primary);
  color: var(--text-dark);
}
.page-faq .faq-q-num {
  flex: 0 0 32px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-label);
  font-size: 13px;
  font-weight: 700;
  color: var(--text-dark);
}
.page-faq .faq-item:nth-child(1) .faq-q-num {
  background: var(--accent);
}
.page-faq .faq-item:nth-child(2) .faq-q-num {
  background: var(--cache);
}
.page-faq .faq-item:nth-child(3) .faq-q-num {
  background: var(--tag-pink);
}
.page-faq .faq-item:nth-child(4) .faq-q-num {
  background: var(--tag-purple);
  color: #fff;
}
.page-faq .faq-item:nth-child(5) .faq-q-num {
  background: var(--status-updating);
}
.page-faq .faq-item:nth-child(6) .faq-q-num {
  background: var(--tag-orange);
}
.page-faq .faq-item:nth-child(7) .faq-q-num {
  background: var(--tag-red);
  color: #fff;
}
.page-faq .faq-a {
  padding: 0 20px 20px 58px;
  font-size: 14px;
  line-height: 1.75;
  color: #4B5563;
}
.page-faq .faq-a p {
  margin: 0 0 8px;
}
.page-faq .faq-a p:last-child {
  margin-bottom: 0;
}
.page-faq .faq-a a {
  color: var(--primary);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid rgba(255,165,0,.3);
}
.page-faq .faq-a a:hover {
  border-bottom-color: var(--primary);
}

/* ---------- 深色 CTA ---------- */
.page-faq .faq-cta-section {
  background: var(--faq-hero-bg);
  padding: 48px 0;
}
.page-faq .faq-cta-panel {
  background: rgba(255,255,255,.08);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  align-items: flex-start;
}
.page-faq .faq-cta-panel h2 {
  color: var(--text-light);
  font-size: 24px;
  margin: 0 0 8px;
}
.page-faq .faq-cta-panel p {
  color: rgba(255,255,255,.7);
  font-size: 15px;
  line-height: 1.6;
  margin: 0;
}

/* ---------- 桌面栅格 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero {
    padding: 48px 0 64px;
  }
  .page-faq .faq-hero-head h1 {
    font-size: 44px;
  }
  .page-faq .faq-hero-lead {
    font-size: 18px;
  }
  .page-faq .faq-hero-stats {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-faq .faq-steps-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
  .page-faq .export-panel {
    padding: 36px 40px 40px;
  }
  .page-faq .export-inner {
    grid-template-columns: 1.4fr 1fr;
  }
  .page-faq .faq-cta-panel {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}
@media (min-width: 960px) {
  .page-faq .faq-hero-head h1 {
    font-size: 48px;
  }
  .page-faq .faq-section-title {
    font-size: 32px;
  }
  .page-faq .sync-grid {
    grid-template-columns: 300px 1fr;
    gap: 48px;
  }
}