.page-faq {
  --faq-section-gap: clamp(36px, 6vw, 72px);
}

/* 面包屑 */
.page-faq .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  padding: 14px var(--gutter);
  font-family: var(--font-mono);
  font-size: 13px;
  background: var(--c-page-bg);
  border-bottom: 1px solid var(--c-border);
}

.page-faq .breadcrumbs a {
  color: var(--c-blue);
  text-decoration: none;
}

.page-faq .breadcrumbs a:hover {
  text-decoration: underline;
}

.page-faq .breadcrumbs span[aria-current="page"] {
  color: var(--c-gray-deep);
}

/* 首屏 hero */
.page-faq__hero {
  background: linear-gradient(135deg, var(--c-orange-start), var(--c-orange-end));
}

.page-faq__hero-img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 400px;
  object-fit: cover;
}

.page-faq__hero-inner {
  padding: 28px var(--gutter) 36px;
  color: var(--c-text-light);
}

.page-faq .page-faq__hero-inner .kicker {
  display: inline-block;
  padding: 3px 12px;
  background: var(--c-yellow);
  color: var(--c-ink);
  border-radius: 4px;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.page-faq__hero-inner h1 {
  margin: 14px 0 12px;
  max-width: 880px;
  font-size: clamp(24px, 4vw, 38px);
  line-height: 1.22;
  color: var(--c-text-light);
}

.page-faq__hero-desc {
  max-width: 660px;
  margin-bottom: 18px;
  font-size: 15px;
  line-height: 1.65;
  opacity: 0.94;
}

.page-faq__hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* 通用分区背景 */
.page-faq .section--cream {
  background: var(--c-cream);
}

.page-faq .section--mint {
  background: var(--c-mint);
}

.page-faq .section--ink {
  background: var(--c-ink);
  color: var(--c-text-light);
}

.page-faq .section--ink .section__title {
  color: var(--c-text-light);
}

.page-faq .section--ink .section__aside {
  color: rgba(255, 255, 255, 0.72);
}

/* FAQ 折叠面板 */
.page-faq .faq-list {
  display: grid;
  gap: 10px;
}

.page-faq .faq-item {
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 1px 0 var(--c-border);
}

.page-faq .faq-item summary {
  position: relative;
  padding: 16px 48px 16px 18px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.45;
  list-style: none;
  user-select: none;
}

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

.page-faq .faq-item summary::after {
  content: "+";
  position: absolute;
  top: 50%;
  right: 16px;
  transform: translateY(-50%);
  color: var(--c-red);
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 400;
  line-height: 1;
}

.page-faq .faq-item[open] summary::after {
  content: "–";
  color: var(--c-green);
}

.page-faq .faq-answer {
  padding: 12px 18px 16px;
  border-top: 1px dashed var(--c-border);
  font-size: 14px;
  line-height: 1.65;
  color: var(--c-text);
}

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

.page-faq .faq-answer a {
  color: var(--c-blue);
  text-decoration: none;
  border-bottom: 1px solid var(--c-blue-deep);
}

.page-faq .faq-answer a:hover {
  text-decoration: none;
  background: var(--c-blue-tint);
}

/* 表格区 */
.page-faq .table-scroll {
  overflow-x: auto;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  background: var(--c-card);
}

.page-faq .quality-table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-faq .quality-table th,
.page-faq .quality-table td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--c-border);
  vertical-align: top;
}

.page-faq .quality-table th {
  background: var(--c-blue-tint);
  color: var(--c-blue-deep);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
}

.page-faq .quality-table tr:nth-child(even) td {
  background: var(--c-mint);
}

.page-faq .quality-table tr:last-child th,
.page-faq .quality-table tr:last-child td {
  border-bottom: none;
}

.page-faq .badge--hd {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--c-blue-tint);
  color: var(--c-blue-deep);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
}

.page-faq .quality-note {
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--c-gray-deep);
  line-height: 1.6;
}

/* 设备适配 */
.page-faq .device-wrap {
  display: grid;
  gap: 20px;
  align-items: center;
}

.page-faq .device-illustration {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--c-border);
  background: var(--c-media-bg);
}

.page-faq .device-grid {
  display: grid;
  gap: 14px;
}

.page-faq .device-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px;
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-top: 6px solid var(--c-blue);
  border-radius: var(--radius);
  box-shadow: 0 2px 0 var(--c-border);
}

.page-faq .device-card--tablet {
  border-top-color: var(--c-green);
}

.page-faq .device-card--mobile {
  border-top-color: var(--c-yellow);
}

.page-faq .device-card__title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-size: 17px;
  font-weight: 800;
}

.page-faq .device-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 7px;
  background: var(--c-blue-tint);
  color: var(--c-blue-deep);
  font-family: var(--font-mono);
  font-size: 15px;
}

.page-faq .device-icon--tablet {
  background: var(--c-green-tint);
  color: var(--c-green-deep);
}

.page-faq .device-icon--mobile {
  background: var(--c-yellow-tint);
  color: var(--c-yellow-deep);
}

.page-faq .device-card__list {
  display: grid;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .device-card__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.55;
}

.page-faq .device-card__list li::before {
  content: "▸";
  position: absolute;
  top: 1px;
  left: 0;
  color: var(--c-red);
  font-size: 12px;
}

.page-faq .device-card__list a {
  color: var(--c-blue);
  text-decoration: none;
  border-bottom: 1px solid var(--c-blue-deep);
}

.page-faq .device-card__list a:hover {
  background: var(--c-blue-tint);
}

/* 反馈步骤 */
.page-faq .steps {
  display: grid;
  gap: 14px;
  max-width: 780px;
}

.page-faq .step {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px;
  background: var(--c-ink-soft);
  border-left: 4px solid var(--c-yellow);
  border-radius: var(--radius);
}

.page-faq .step__num {
  display: flex;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--c-yellow);
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 800;
}

.page-faq .step__content {
  display: grid;
  gap: 4px;
}

.page-faq .step__content strong {
  color: var(--c-text-light);
  font-size: 16px;
}

.page-faq .step__content p {
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 14px;
  line-height: 1.6;
}

.page-faq .step__content a {
  color: var(--c-yellow);
  text-decoration: none;
  border-bottom: 1px solid var(--c-yellow-deep);
}

.page-faq .step__content a:hover {
  background: rgba(255, 255, 255, 0.12);
}

.page-faq .feedback-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-faq .btn--primary {
  background: var(--c-orange-end);
  color: var(--c-text-light);
  border: none;
}

.page-faq .btn--ghost {
  background: transparent;
  color: var(--c-text-light);
  border: 1px solid rgba(255, 255, 255, 0.5);
}

.page-faq .btn--ghost:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* 桌面增强 */
@media (min-width: 768px) {
  .page-faq__hero-inner {
    padding: 36px var(--gutter) 52px;
  }

  .page-faq .faq-list {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    align-items: start;
  }

  .page-faq .device-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .page-faq .steps {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    max-width: none;
  }
}

@media (min-width: 920px) {
  .page-faq .device-wrap {
    grid-template-columns: 280px 1fr;
    gap: 28px;
  }

  .page-faq .device-illustration {
    align-self: stretch;
    object-fit: cover;
  }

  .page-faq .device-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}