.page-faq {
  --faq-band-accent: #FF6A00;
  background-image: radial-gradient(rgba(57, 255, 20, 0.045) 1px, transparent 1px);
  background-size: 32px 32px;
}

.page-faq .faq-container {
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* 面包屑 */
.page-faq .faq-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 28px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
}

.page-faq .crumb-link {
  color: var(--text-alt);
  text-decoration: none;
  transition: color 0.25s ease;
}

.page-faq .crumb-link:hover {
  color: var(--secondary);
}

.page-faq .crumb-sep {
  color: var(--divider);
}

.page-faq .crumb-current {
  color: var(--text-main);
}

/* 首屏 */
.page-faq .faq-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  padding-block: 36px 48px;
  border-bottom: 1px solid var(--divider);
}

.page-faq .section-kicker {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  text-transform: uppercase;
}

.page-faq .section-kicker::before {
  content: "";
  width: 44px;
  height: 1px;
  background: var(--accent);
}

.page-faq .faq-hero h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2.1rem, 5.4vw, 4rem);
  line-height: 1.06;
  letter-spacing: 0.01em;
  color: var(--text-main);
  text-wrap: balance;
}

.page-faq .faq-hero-lead {
  margin: 0;
  max-width: 58ch;
  font-size: 1.02rem;
  line-height: 1.85;
  color: var(--text-alt);
}

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

.page-faq .faq-hero-meta .metric {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 14px;
  border: 1px solid var(--divider);
  border-left: 3px solid var(--primary);
  background: rgba(255, 106, 0, 0.06);
}

.page-faq .faq-hero-meta .metric-value {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
  color: var(--secondary);
}

.page-faq .faq-hero-meta .metric-label {
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--text-alt);
}

/* 首屏右侧 */
.page-faq .faq-hero-side {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.page-faq .faq-hero-figure {
  position: relative;
  margin: 0;
  height: clamp(170px, 26vw, 270px);
  overflow: hidden;
  border: 1px solid var(--divider);
  background: var(--bg-alt);
}

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

.page-faq .faq-hero-figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(10, 14, 39, 0.05), rgba(26, 10, 15, 0.45));
  pointer-events: none;
}

.page-faq .faq-hero-figure figcaption {
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 1;
  padding: 8px 14px;
  background: rgba(10, 14, 39, 0.78);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--secondary);
}

/* 坐标索引 */
.page-faq .faq-legend {
  padding: 16px;
  border: 1px solid var(--divider);
  background: linear-gradient(180deg, rgba(58, 63, 92, 0.14), rgba(10, 14, 39, 0.5));
}

.page-faq .faq-legend-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-alt);
}

.page-faq .faq-legend-dot {
  width: 8px;
  height: 8px;
  background: var(--secondary);
  box-shadow: 0 0 0 3px rgba(57, 255, 20, 0.16);
}

.page-faq .faq-legend-item {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 11px 10px;
  border-top: 1px solid var(--divider);
  color: var(--text-main);
  text-decoration: none;
  transition: background 0.25s ease, padding-left 0.25s ease;
}

.page-faq .faq-legend-item:first-of-type {
  border-top: 0;
}

.page-faq .faq-legend-item:hover {
  padding-left: 14px;
  background: rgba(255, 106, 0, 0.1);
}

.page-faq .faq-legend-code {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary);
  transition: color 0.25s ease;
}

.page-faq .faq-legend-item:hover .faq-legend-code {
  color: var(--secondary);
}

.page-faq .faq-legend-name {
  font-size: 0.92rem;
  font-weight: 600;
  line-height: 1.4;
}

.page-faq .faq-legend-count {
  padding: 2px 8px;
  border: 1px solid var(--divider);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  white-space: nowrap;
  color: var(--text-alt);
}

/* 章节标题 */
.page-faq .faq-chapter {
  padding-top: 56px;
}

.page-faq .faq-chapter-head {
  display: grid;
  gap: 10px;
  padding-top: 30px;
  border-top: 1px solid var(--divider);
}

.page-faq .faq-chapter-no {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  color: var(--secondary);
}

.page-faq .faq-chapter-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.9rem, 4vw, 3rem);
  line-height: 1.1;
  color: var(--text-main);
}

.page-faq .faq-chapter-sub {
  margin: 0;
  max-width: 62ch;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--text-alt);
}

/* 主题带 */
.page-faq .faq-bands {
  display: grid;
  gap: 0;
}

.page-faq .faq-band {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  padding-block: 44px;
  border-bottom: 1px solid var(--divider);
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.page-faq .faq-band--green {
  --faq-band-accent: var(--secondary);
}

.page-faq .faq-band--gold {
  --faq-band-accent: var(--accent);
}

.page-faq .faq-band--alt {
  background: linear-gradient(90deg, rgba(26, 10, 15, 0.55), rgba(10, 14, 39, 0) 72%);
}

.page-faq .faq-band::before {
  content: "";
  position: absolute;
  top: 44px;
  bottom: 44px;
  left: 0;
  width: 3px;
  background: var(--faq-band-accent, #FF6A00);
  opacity: 0.7;
}

.page-faq .faq-band-head {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  padding-left: 16px;
}

.page-faq .faq-band-code {
  font-family: var(--font-mono);
  font-size: clamp(2rem, 3vw, 2.6rem);
  font-weight: 700;
  line-height: 1;
  color: var(--faq-band-accent, #FF6A00);
}

.page-faq .faq-band-head h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.5rem, 2.6vw, 2.2rem);
  line-height: 1.18;
  color: var(--text-main);
}

.page-faq .faq-band-sub {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--text-alt);
}

.page-faq .faq-band-count {
  padding: 4px 10px;
  border: 1px solid var(--divider);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  color: var(--faq-band-accent, #FF6A00);
}

/* 问答列表 */
.page-faq .faq-list {
  border-top: 1px solid var(--divider);
  border-bottom: 1px solid var(--divider);
}

.page-faq .expand-box {
  border-bottom: 1px solid var(--divider);
}

.page-faq .expand-box:last-child {
  border-bottom: 0;
}

.page-faq .expand-trigger {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr) 30px;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 18px 6px;
  border: 0;
  background: transparent;
  text-align: left;
  cursor: pointer;
  color: var(--text-main);
  font-family: var(--font-body);
  transition: background 0.25s ease;
}

.page-faq .expand-trigger:hover {
  background: rgba(255, 255, 255, 0.03);
}

.page-faq .expand-trigger:focus-visible {
  outline: 2px solid var(--secondary);
  outline-offset: -2px;
}

.page-faq .faq-q-num {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--faq-band-accent, #FF6A00);
  transition: color 0.25s ease, transform 0.25s ease;
}

.page-faq .expand-trigger:hover .faq-q-num {
  color: var(--secondary);
  transform: translateX(2px);
}

.page-faq .faq-q-text {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.55;
  transition: color 0.25s ease;
}

.page-faq .expand-trigger:hover .faq-q-text {
  color: var(--secondary);
}

.page-faq .expand-icon {
  display: grid;
  place-items: center;
  justify-self: end;
  width: 26px;
  height: 26px;
  border: 1px solid var(--divider);
  font-family: var(--font-mono);
  font-size: 1rem;
  line-height: 1;
  color: var(--text-alt);
  transition: transform 0.3s ease, border-color 0.3s ease, background 0.3s ease, color 0.3s ease;
}

.page-faq .expand-box:has(.expand-content[data-open="true"]) .expand-icon {
  transform: rotate(45deg);
  border-color: var(--faq-band-accent, #FF6A00);
  background: var(--faq-band-accent, #FF6A00);
  color: var(--bg-base);
}

.page-faq .expand-content {
  display: none;
  padding: 0 6px 22px 66px;
}

.page-faq .expand-content[data-open="true"] {
  display: grid;
  gap: 12px;
}

.js .page-faq .expand-content[data-open="true"] {
  animation: faqFadeIn 0.35s ease;
}

@keyframes faqFadeIn {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* 答案卡片 */
.page-faq .faq-answer-inner {
  padding: 16px 18px;
  border-left: 3px solid var(--faq-band-accent, #FF6A00);
  background: linear-gradient(180deg, rgba(26, 10, 15, 0.55), rgba(10, 14, 39, 0.3));
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--text-alt);
}

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

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

.page-faq .faq-answer-inner a {
  color: var(--secondary);
  text-decoration: none;
  border-bottom: 1px solid rgba(57, 255, 20, 0.35);
  transition: border-color 0.25s ease;
}

.page-faq .faq-answer-inner a:hover {
  border-color: var(--secondary);
}

.page-faq .faq-answer-tag {
  display: inline-block;
  margin-right: 8px;
  padding: 1px 8px;
  border: 1px solid var(--divider);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  vertical-align: 2px;
  color: var(--faq-band-accent, #FF6A00);
}

/* 推送流程示意图 */
.page-faq .faq-flow-figure {
  margin: 14px 0 0;
  padding: 10px;
  border: 1px solid var(--divider);
  background: rgba(10, 14, 39, 0.5);
}

.page-faq .faq-flow-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-faq .faq-flow-figure figcaption {
  padding: 10px 4px 2px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--text-alt);
}

/* 联系技术支持 */
.page-faq .faq-contact {
  display: grid;
  gap: 18px;
  padding-block: 56px;
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.page-faq .faq-contact-head {
  display: flex;
  align-items: center;
  gap: 18px;
}

.page-faq .faq-contact-head .faq-band-code {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
}

.page-faq .faq-contact-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  color: var(--text-main);
}

.page-faq .faq-contact-lead {
  margin: 0;
  max-width: 72ch;
  font-size: 0.96rem;
  line-height: 1.8;
  color: var(--text-alt);
}

.page-faq .faq-contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: 8px;
}

.page-faq .faq-contact-main {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  padding: 24px;
  border: 1px solid var(--divider);
  background: linear-gradient(135deg, rgba(255, 106, 0, 0.1), rgba(10, 14, 39, 0.2) 70%);
}

.page-faq .faq-contact-main h3 {
  margin: 0;
  font-size: 1.2rem;
  color: var(--text-main);
}

.page-faq .faq-contact-main p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--text-alt);
}

.page-faq .faq-contact-main .btn {
  margin-top: 6px;
}

.page-faq .faq-channel-list {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  border: 1px solid var(--divider);
  background: var(--divider);
}

.page-faq .faq-channel {
  display: grid;
  gap: 5px;
  padding: 14px 18px;
  background: var(--bg-base);
}

.page-faq .faq-channel dt {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-alt);
}

.page-faq .faq-channel dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.94rem;
  word-break: break-word;
  color: var(--text-main);
}

.page-faq .faq-contact-note {
  padding: 20px;
  border-left: 3px solid var(--accent);
  background: linear-gradient(135deg, rgba(255, 215, 0, 0.07), rgba(10, 14, 39, 0.25) 75%);
  font-size: 0.88rem;
  line-height: 1.85;
  color: var(--text-alt);
}

.page-faq .faq-contact-note p {
  margin: 0 0 8px;
}

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

.page-faq .faq-contact-note a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 215, 0, 0.4);
}

.page-faq .faq-contact-note a:hover {
  border-color: var(--accent);
}

/* 滚动显现 */
.js .page-faq [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.js .page-faq [data-reveal][data-visible] {
  opacity: 1;
  transform: none;
}

/* 响应式 */
@media (min-width: 640px) {
  .page-faq .faq-hero-meta .metric {
    padding: 12px 18px;
  }

  .page-faq .expand-trigger {
    grid-template-columns: 64px minmax(0, 1fr) 32px;
    padding: 20px 10px;
  }

  .page-faq .expand-content {
    padding: 0 10px 26px 74px;
  }

  .page-faq .faq-contact-grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-faq .faq-contact-note {
    grid-column: 1 / -1;
  }
}

@media (min-width: 860px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 48px;
    padding-block: 48px 64px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-band {
    grid-template-columns: minmax(260px, 0.7fr) minmax(0, 1.3fr);
    column-gap: 56px;
    padding-block: 56px 64px;
  }

  .page-faq .faq-band::before {
    top: 56px;
    bottom: 64px;
  }

  .page-faq .faq-band-head {
    position: sticky;
    top: calc(var(--header-h) + 28px);
    align-self: start;
  }

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

  .page-faq .faq-contact-grid {
    grid-template-columns: 0.85fr 1.05fr 1.1fr;
  }

  .page-faq .faq-contact-note {
    grid-column: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .js .page-faq [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .js .page-faq .expand-content[data-open="true"] {
    animation: none;
  }

  .page-faq .expand-icon,
  .page-faq .faq-legend-item,
  .page-faq .expand-trigger:hover .faq-q-num {
    transition: none;
  }
}