.page-faq {
  --faq-line: 3px;
  --faq-sticky: 116px;
}

/* 首屏 */
.page-faq .faq-head {
  padding-block: 4px 46px;
}

.page-faq .faq-head-grid {
  display: grid;
  gap: 24px;
}

.page-faq .faq-head h1 {
  margin: 10px 0 0;
  font-family: var(--font-heading);
  font-size: clamp(34px, 8vw, 62px);
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--bamboo-deep);
  text-wrap: balance;
}

.page-faq .faq-lede {
  margin: 18px 0 0;
  max-width: 660px;
  font-size: 17px;
  line-height: 1.85;
  color: var(--ink);
}

.page-faq .faq-head-actions {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 22px;
}

.page-faq .faq-textlink {
  color: var(--cinnabar-deep);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-thickness: 2px;
}

.page-faq .faq-head-aside {
  border: var(--faq-line) solid var(--ink);
  background: var(--tile);
  padding: 18px 20px;
  box-shadow: var(--shadow-soft);
  transform: rotate(-1deg);
}

.page-faq .faq-aside-text {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--bamboo-deep);
}

/* 主体布局 */
.page-faq .faq-body {
  padding-block: 0 76px;
}

.page-faq .faq-layout {
  display: grid;
  gap: 32px;
}

.page-faq .faq-index {
  border-top: var(--faq-line) solid var(--bamboo-deep);
  padding-top: 18px;
}

.page-faq .faq-index-list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-index-list a {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 10px;
  padding: 12px 14px;
  border: 2px solid var(--bamboo-deep);
  background: var(--paper);
  color: var(--ink);
  text-decoration: none;
  box-shadow: 4px 4px 0 rgba(46, 70, 52, 0.18);
  transition: transform var(--t-fast) var(--ease),
    box-shadow var(--t-fast) var(--ease),
    background-color var(--t-fast) var(--ease);
}

.page-faq .faq-index-list a:hover,
.page-faq .faq-index-list a:focus-visible {
  transform: translate(-2px, -2px);
  box-shadow: 7px 7px 0 var(--bamboo-deep);
  background: var(--ivory);
}

.page-faq .faq-index-label {
  font-weight: 600;
  font-size: 15px;
}

.page-faq .faq-index-tag {
  font-size: 12px;
  line-height: 1.6;
  color: var(--cinnabar-deep);
  border: 1px solid var(--cinnabar-deep);
  padding: 0 7px;
  border-radius: 999px;
  white-space: nowrap;
}

.page-faq .faq-index-note {
  margin: 16px 0 0;
}

/* 章节 */
.page-faq .faq-block {
  padding-block: 36px;
  border-top: var(--faq-line) solid var(--ink);
  scroll-margin-top: 120px;
}

.page-faq .faq-content > .faq-block:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .faq-block-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 16px;
  margin-bottom: 16px;
}

.page-faq .faq-block-head h2 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: clamp(24px, 4.4vw, 34px);
  line-height: 1.26;
  color: var(--bamboo-deep);
}

.page-faq .faq-block-lede {
  margin: 0 0 22px;
  max-width: 700px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
}

/* 折叠问答 */
.page-faq .faq-list {
  display: grid;
  gap: 10px;
}

.page-faq .faq-item {
  border: 2px solid var(--bamboo-deep);
  background: var(--paper);
  transition: box-shadow var(--t-fast) var(--ease),
    background-color var(--t-fast) var(--ease);
}

.page-faq .faq-item[open] {
  background: var(--ivory);
  box-shadow: 5px 5px 0 rgba(46, 70, 52, 0.16);
}

.page-faq .faq-item summary {
  cursor: pointer;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 16px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink);
  list-style: none;
}

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

.page-faq .faq-item summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--cinnabar);
}

.page-faq .faq-item[open] summary::after {
  content: "−";
}

.page-faq .faq-answer {
  padding: 0 16px 16px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ink);
}

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

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

.page-faq .faq-inline-link {
  color: var(--cinnabar-deep);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 换设备四步 */
.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0 0 12px;
  display: grid;
  gap: 16px;
}

.page-faq .faq-step {
  border: var(--faq-line) solid var(--bamboo-deep);
  border-left: 8px solid var(--cinnabar);
  background: var(--paper);
  padding: 20px 20px 18px;
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-step-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--cinnabar);
}

.page-faq .faq-step h3 {
  margin: 8px 0 8px;
  font-family: var(--font-heading);
  font-size: 20px;
  line-height: 1.4;
  color: var(--bamboo-deep);
}

.page-faq .faq-step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
}

.page-faq .faq-step .faq-inline-link {
  word-break: break-all;
}

/* 图片 */
.page-faq .faq-figure {
  margin: 26px 0 0;
  border: var(--faq-line) solid var(--ink);
  background: var(--tile);
}

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

.page-faq .faq-figure .media-caption {
  padding: 10px 14px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--bamboo-deep);
  background: var(--paper);
  border-top: 2px solid var(--ink);
}

/* 牌型八宫格 */
.page-faq .faq-pattern-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.page-faq .faq-pattern {
  border: 2px solid var(--bamboo-deep);
  background: var(--tile);
  padding: 14px 14px 12px;
  min-height: 112px;
}

.page-faq .faq-pattern:nth-child(even) {
  background: var(--paper);
}

.page-faq .faq-pattern h3 {
  margin: 0 0 8px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 19px;
  line-height: 1.4;
  color: var(--bamboo-deep);
}

.page-faq .faq-pattern h3::before {
  content: "";
  flex: none;
  width: 10px;
  height: 10px;
  background: var(--gold);
  border: 2px solid var(--bamboo-deep);
  transform: rotate(45deg);
}

.page-faq .faq-pattern p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
}

/* 标签页 */
.page-faq .faq-tabs {
  margin-top: 4px;
}

.page-faq .tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}

.page-faq .tab-btn {
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  padding: 10px 18px;
  border: 2px solid var(--bamboo-deep);
  background: var(--paper);
  color: var(--bamboo-deep);
  cursor: pointer;
  transition: background-color var(--t-fast) var(--ease),
    color var(--t-fast) var(--ease),
    transform var(--t-fast) var(--ease),
    box-shadow var(--t-fast) var(--ease);
}

.page-faq .tab-btn:hover {
  transform: translateY(-1px);
}

.page-faq .tab-btn[aria-selected="true"] {
  background: var(--bamboo);
  color: var(--ivory);
  box-shadow: 4px 4px 0 var(--bamboo-deep);
}

.page-faq .tab-panel:focus {
  outline: none;
}

.page-faq .tab-panel .faq-item + .faq-item {
  margin-top: 10px;
}

/* 场次 */
.page-faq .faq-sessions {
  display: grid;
  gap: 12px;
  margin-bottom: 24px;
}

.page-faq .faq-session {
  border: 2px solid var(--bamboo-deep);
  border-top: 6px solid var(--cinnabar);
  background: var(--paper);
  padding: 14px 16px 16px;
}

.page-faq .faq-session h3 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: 20px;
  line-height: 1.4;
  color: var(--bamboo-deep);
}

.page-faq .faq-session-time {
  margin: 6px 0 8px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--cinnabar-deep);
}

.page-faq .faq-session p:last-child {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
}

/* 联系前准备 */
.page-faq .faq-contact-grid {
  display: grid;
  gap: 16px;
}

.page-faq .faq-checklist {
  border: var(--faq-line) solid var(--bamboo-deep);
  background: var(--paper);
  padding: 20px;
}

.page-faq .faq-checklist h3,
.page-faq .faq-contact-card h3 {
  margin: 0 0 12px;
  font-family: var(--font-heading);
  font-size: 19px;
  line-height: 1.4;
}

.page-faq .faq-checklist h3 {
  color: var(--bamboo-deep);
}

.page-faq .faq-check-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-check-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
}

.page-faq .faq-check-list .mono {
  font-weight: 700;
  color: var(--cinnabar-deep);
}

.page-faq .faq-contact-card {
  border: var(--faq-line) solid var(--ink);
  background: var(--bamboo-deep);
  color: var(--ivory);
  padding: 20px;
}

.page-faq .faq-contact-card h3 {
  color: var(--gold);
}

.page-faq .faq-contact-line {
  margin: 0 0 10px;
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 10px;
  font-size: 15px;
  line-height: 1.7;
  word-break: break-word;
}

.page-faq .faq-contact-line .mono {
  font-size: 13px;
  color: var(--gold);
}

.page-faq .faq-contact-card a {
  color: var(--ivory);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-contact-note {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid rgba(245, 240, 230, 0.42);
  font-size: 13px;
  line-height: 1.75;
  color: rgba(245, 240, 230, 0.88);
}

.page-faq .faq-contact-link-wrap {
  margin: 12px 0 0;
  font-size: 14px;
}

.page-faq .faq-contact-link {
  font-weight: 600;
}

.page-faq .faq-foot-note {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--bamboo-deep);
}

/* 中等屏幕 */
@media (min-width: 720px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-step:nth-child(even) {
    transform: translateY(12px);
  }

  .page-faq .faq-pattern-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-pattern:nth-child(even) {
    transform: translateY(10px);
  }

  .page-faq .faq-sessions {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-contact-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* 桌面：左侧粘性索引 + 右侧正文 */
@media (min-width: 900px) {
  .page-faq .faq-head-grid {
    grid-template-columns: minmax(0, 1fr) 260px;
    align-items: start;
    gap: 48px;
  }

  .page-faq .faq-layout {
    grid-template-columns: 250px minmax(0, 1fr);
    align-items: start;
    gap: 56px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: var(--faq-sticky);
    max-height: calc(100vh - 150px);
    overflow-y: auto;
    padding-bottom: 8px;
  }

  .page-faq .faq-head-aside {
    margin-top: 14px;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-sessions {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index-list a,
  .page-faq .tab-btn,
  .page-faq .faq-item {
    transition: none;
  }

  .page-faq .faq-step:nth-child(even),
  .page-faq .faq-pattern:nth-child(even),
  .page-faq .faq-head-aside {
    transform: none;
  }
}