.page-faq {
  --faq-card-bg: #F5F5F5;
  --faq-card-border: #F1C40F;
  --faq-purple: #8E44AD;
  --faq-orange: #E67E22;
  --faq-dark: #2C3E50;
  --faq-deep: #233240;
  --faq-text-light: #ECF0F1;
  --faq-text-dark: #2C3E50;
  --faq-muted: #BDC3C7;
  background: var(--faq-dark);
  color: var(--faq-text-light);
}

.page-faq .container {
  width: min(1200px, 100% - 48px);
  margin-inline: auto;
}

/* ========== Hero 区 ========== */
.page-faq .faq-hero {
  background: linear-gradient(135deg, #8E44AD 0%, #6C3483 60%, #5B2C6F 100%);
  padding-top: calc(var(--header-height, 64px) + 40px);
  padding-bottom: 48px;
  position: relative;
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -80px;
  top: -80px;
  width: 300px;
  height: 300px;
  background: rgba(241, 196, 15, 0.12);
  border-radius: 50%;
  pointer-events: none;
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: 32px;
}

.page-faq .faq-hero-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-faq .faq-hero-kicker {
  display: inline-block;
  background: #F1C40F;
  color: #2C3E50;
  font-size: 13px;
  font-weight: 700;
  padding: 6px 14px;
  margin-bottom: 16px;
  border-radius: 4px 4px 4px 0;
  letter-spacing: 0.08em;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-head);
  font-size: clamp(28px, 5vw, 44px);
  font-weight: 800;
  line-height: 1.2;
  margin: 0 0 16px;
  color: #fff;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
}

.page-faq .faq-hero-lead {
  font-size: 15px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.85);
  max-width: 620px;
  margin: 0;
}

.page-faq .faq-hero-index {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-faq .faq-hero-index a {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 4px 12px 4px 4px;
  color: #fff;
  text-decoration: none;
  font-size: 15px;
  font-weight: 600;
  transition: background 0.25s ease, transform 0.25s ease;
}

.page-faq .faq-hero-index a span {
  font-size: 18px;
  font-weight: 800;
  color: #F1C40F;
  min-width: 30px;
}

.page-faq .faq-hero-index a:hover,
.page-faq .faq-hero-index a:focus-visible {
  background: rgba(241, 196, 15, 0.25);
  transform: translateX(4px);
}

@media (min-width: 900px) {
  .page-faq .faq-hero-content {
    grid-template-columns: 7fr 5fr;
    align-items: end;
    gap: 48px;
  }
}

/* ========== 01 检索步骤 ========== */
.page-faq .faq-search {
  background: var(--faq-dark);
  padding-top: 64px;
  padding-bottom: 72px;
}

.page-faq .section-head {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  margin-bottom: 36px;
}

.page-faq .section-head h2 {
  font-size: clamp(22px, 3.4vw, 32px);
  font-weight: 800;
  margin: 0 0 6px;
  line-height: 1.2;
}

.page-faq .section-head .section-note {
  font-size: 14px;
  color: var(--faq-muted);
  margin: 0;
}

.page-faq .faq-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-faq .faq-step-card {
  background: var(--faq-card-bg);
  border: 2px solid var(--faq-card-border);
  border-radius: 4px 16px 4px 4px;
  padding: 28px 24px 24px;
  display: flex;
  flex-direction: column;
  position: relative;
  color: var(--faq-text-dark);
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-step-card::before {
  content: "";
  position: absolute;
  top: -2px;
  left: 0;
  width: 64px;
  height: 4px;
  background: var(--faq-orange);
}

.page-faq .faq-step-num {
  font-size: 56px;
  font-weight: 800;
  line-height: 0.9;
  color: #E67E22;
  display: block;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.page-faq .faq-step-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin: 0 0 10px;
  color: var(--faq-text-dark);
}

.page-faq .faq-step-card p {
  font-size: 14px;
  line-height: 1.75;
  margin: 0 0 18px;
  color: #4a5568;
  flex-grow: 1;
}

.page-faq .faq-step-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
}

.page-faq .faq-step-img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  border: 1px solid #d1d8e0;
  background: #e8ecf1;
  margin-top: auto;
  object-fit: cover;
}

.page-faq .faq-step-link {
  margin-top: auto;
  align-self: flex-start;
}

@media (min-width: 768px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
}

/* ========== 02 筛选与排序 ========== */
.page-faq .faq-filter {
  background: var(--faq-purple);
  padding-top: 56px;
  padding-bottom: 64px;
}

.page-faq .faq-filter .section-head h2 {
  color: #fff;
}

.page-faq .faq-filter .section-note {
  color: rgba(255, 255, 255, 0.7);
}

.page-faq .faq-table-wrap {
  overflow-x: auto;
  margin-bottom: 40px;
  border-radius: 4px 4px 4px 0;
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-table-wrap table.compare-table {
  width: 100%;
  min-width: 560px;
  border-collapse: separate;
  border-spacing: 0;
  background: #fff;
  color: var(--faq-text-dark);
  font-size: 14px;
}

.page-faq .faq-table-wrap table.compare-table th {
  background: #34495E;
  color: #fff;
  font-weight: 700;
  padding: 14px 16px;
  text-align: left;
  white-space: nowrap;
}

.page-faq .faq-table-wrap table.compare-table td {
  padding: 13px 16px;
  border-bottom: 1px solid #e2e8f0;
  vertical-align: top;
  line-height: 1.6;
}

.page-faq .faq-table-wrap table.compare-table tr:last-child td {
  border-bottom: none;
}

.page-faq .faq-table-wrap table.compare-table tbody tr:nth-child(even) {
  background: #f5f7fa;
}

.page-faq .faq-table-wrap table.compare-table tbody tr:hover {
  background: #fff8e1;
}

.page-faq .faq-sort-row {
  background: rgba(0, 0, 0, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 4px 12px 4px 4px;
  padding: 24px;
}

.page-faq .faq-sort-row h3 {
  font-size: 18px;
  font-weight: 700;
  margin: 0 0 14px;
  color: #fff;
}

.page-faq .faq-sort-row .tag-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.page-faq .faq-sort-row p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.85);
  margin: 0;
}

/* ========== 03 播放器设置 ========== */
.page-faq .faq-player {
  background: var(--faq-deep);
  padding-top: 64px;
  padding-bottom: 72px;
}

.page-faq .faq-player-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-faq .faq-player-visual {
  background: #1d2a36;
  border: 2px solid #F1C40F;
  border-radius: 4px 16px 4px 4px;
  padding: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lift);
}

.page-faq .faq-player-img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  display: block;
}

.page-faq .faq-player-expanders {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-faq .faq-qa-item {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 4px 12px 4px 4px;
  overflow: hidden;
}

.page-faq .faq-qa-item .expander-trigger {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  background: transparent;
  border: none;
  padding: 18px 20px;
  font-size: 15px;
  font-weight: 600;
  color: #ECF0F1;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-body);
  position: relative;
  transition: background 0.2s ease;
}

.page-faq .faq-qa-item .expander-trigger::after {
  content: "+";
  font-size: 22px;
  font-weight: 400;
  color: #F1C40F;
  line-height: 1;
  transition: transform 0.25s ease;
  margin-left: 16px;
}

.page-faq .faq-qa-item .expander-trigger[aria-expanded="true"]::after {
  transform: rotate(45deg);
}

.page-faq .faq-qa-item .expander-trigger:hover,
.page-faq .faq-qa-item .expander-trigger:focus-visible {
  background: rgba(241, 196, 15, 0.08);
  outline: none;
}

.page-faq .faq-qa-item .expander-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s var(--ease-out);
}

.page-faq .faq-qa-item .expander-panel[data-open="true"] {
  max-height: 600px;
}

.page-faq .faq-qa-item .expander-panel-inner {
  padding: 0 20px 18px;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(236, 240, 241, 0.88);
}

.page-faq .faq-qa-item .expander-panel-inner p {
  margin: 0 0 12px;
}

.page-faq .faq-qa-item .expander-panel-inner a.btn-ghost {
  margin-top: 4px;
}

@media (min-width: 900px) {
  .page-faq .faq-player-grid {
    grid-template-columns: 5fr 7fr;
    align-items: start;
  }
}

/* ========== 04 终端适配 ========== */
.page-faq .faq-device {
  background: var(--faq-orange);
  padding-top: 56px;
  padding-bottom: 64px;
}

.page-faq .faq-device .section-head h2 {
  color: #fff;
}

.page-faq .faq-device .section-note {
  color: rgba(255, 255, 255, 0.85);
}

.page-faq .faq-device-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-bottom: 28px;
}

.page-faq .faq-device-card {
  background: var(--faq-dark);
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-radius: 4px 16px 4px 4px;
  padding: 28px 26px;
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-device-card h3 {
  font-size: 20px;
  font-weight: 800;
  margin: 0 0 16px;
  color: #F1C40F;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.page-faq .faq-device-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-device-card li {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(236, 240, 241, 0.9);
  padding: 6px 0 6px 24px;
  position: relative;
}

.page-faq .faq-device-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 15px;
  width: 12px;
  height: 6px;
  border-left: 2px solid #2ECC71;
  border-bottom: 2px solid #2ECC71;
  transform: rotate(-45deg);
}

.page-faq .faq-device-card kbd {
  background: #34495E;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-bottom-width: 2px;
  border-radius: 4px;
  padding: 1px 8px;
  font-family: var(--font-body);
  font-size: 13px;
  color: #F1C40F;
}

.page-faq .faq-device-extra {
  font-size: 14px;
  line-height: 1.8;
  color: var(--faq-text-dark);
  background: rgba(255, 255, 255, 0.85);
  border-left: 4px solid #F1C40F;
  padding: 14px 20px;
  margin: 0;
  border-radius: 0 8px 8px 0;
}

@media (min-width: 768px) {
  .page-faq .faq-device-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }
}

/* ========== 05 常见问题 ========== */
.page-faq .faq-common {
  background: var(--faq-dark);
  padding-top: 64px;
  padding-bottom: 72px;
}

.page-faq .faq-common-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-faq .faq-common-list .faq-qa-item {
  background: var(--faq-deep);
  border-color: rgba(255, 255, 255, 0.1);
}

.page-faq .faq-common-list .expander-trigger {
  font-size: 16px;
}

.page-faq .faq-common-list .expander-panel-inner {
  color: rgba(236, 240, 241, 0.85);
  font-size: 14px;
  line-height: 1.75;
}

.page-faq .faq-common-list .expander-panel-inner p {
  margin-bottom: 12px;
}

/* ========== 移动端细节 ========== */
@media (max-width: 767px) {
  .page-faq .faq-hero {
    padding-top: calc(var(--header-height, 64px) + 24px);
    padding-bottom: 32px;
  }

  .page-faq .faq-hero-lead {
    font-size: 14px;
  }

  .page-faq .section-head {
    flex-direction: row;
  }

  .page-faq .seq-marker {
    font-size: 32px;
  }

  .page-faq .faq-step-card {
    padding: 20px 18px 18px;
  }

  .page-faq .faq-device-card {
    padding: 20px 18px;
  }

  .page-faq .faq-qa-item .expander-trigger {
    font-size: 14px;
    padding: 15px 16px;
  }

  .page-faq .faq-qa-item .expander-panel-inner {
    font-size: 13px;
    padding: 0 16px 14px;
  }
}

/* 减少动效偏好 */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-hero-index a,
  .page-faq .faq-qa-item .expander-trigger::after {
    transition: none;
  }

  .page-faq .faq-qa-item .expander-panel {
    transition: none;
  }
}