.page-faq {
  --faq-bg: #0A1128;
  --faq-panel: #0D1730;
  --faq-line: rgba(255, 255, 255, 0.08);
  --faq-green: #00FF66;
  --faq-orange: #FF7A00;
  --faq-gray: #C0CAD6;
  background-color: var(--faq-bg);
  color: var(--faq-gray);
  font-family: var(--font-mono);
  overflow-x: hidden;
}

/* ========== Hero ========== */
.page-faq .faq-hero {
  padding: 36px 0 0;
  position: relative;
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  padding: 32px 0 8px;
}

.page-faq .faq-hero__content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}

.page-faq .faq-hero__kicker {
  font-family: var(--font-mono);
  font-size: var(--text-12);
  letter-spacing: 0.18em;
  color: var(--faq-green);
  margin: 0;
  text-transform: uppercase;
}

.page-faq .faq-hero__content h1 {
  font-family: var(--font-display);
  font-size: 34px;
  line-height: 1.12;
  color: var(--color-white);
  margin: 0;
}

.page-faq .faq-hero__brand {
  color: var(--faq-green);
}

.page-faq .faq-hero__lead {
  font-size: var(--text-14);
  line-height: 1.85;
  color: var(--faq-gray);
  max-width: 560px;
  margin: 0;
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 24px;
  list-style: none;
  padding: 0;
  margin: 8px 0 0;
}

.page-faq .faq-hero__stats li {
  border-left: 2px solid var(--faq-orange);
  padding-left: 12px;
}

.page-faq .faq-hero__stats strong {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-20);
  color: var(--color-white);
  line-height: 1.2;
}

.page-faq .faq-hero__stats span {
  font-size: var(--text-12);
  color: var(--faq-gray);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
}

.page-faq .faq-hero__media {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(0, 255, 102, 0.35);
  background: var(--faq-panel);
}

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

.page-faq .faq-hero__scanline {
  position: absolute;
  left: 0;
  top: -40%;
  width: 100%;
  height: 40%;
  background: linear-gradient(180deg, transparent, rgba(0, 255, 102, 0.12), transparent);
  animation: faq-scan-down 3s linear infinite;
  pointer-events: none;
}

.page-faq .faq-index {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 16px 0 20px;
  margin-top: 12px;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-index a {
  font-family: var(--font-mono);
  font-size: var(--text-12);
  color: var(--faq-gray);
  text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.14);
  padding: 7px 14px;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.page-faq .faq-index a:hover,
.page-faq .faq-index a:focus-visible {
  color: var(--faq-bg);
  background: var(--faq-green);
  border-color: var(--faq-green);
}

/* ========== 命令控制条 ========== */
.page-faq .faq-console {
  background: var(--faq-panel);
  border-top: 1px solid rgba(0, 255, 102, 0.3);
  border-bottom: 1px solid rgba(0, 255, 102, 0.16);
  padding: 12px 0;
}

.page-faq .faq-console .container {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  font-family: var(--font-mono);
  font-size: var(--text-12);
}

.page-faq .faq-console__prompt {
  color: var(--faq-green);
}

.page-faq .faq-console__path {
  color: var(--color-bright-blue);
}

.page-faq .faq-console__status {
  margin-left: auto;
  color: var(--faq-orange);
}

/* ========== 通用部门区 ========== */
.page-faq .faq-dept {
  padding: 48px 0 40px;
  border-bottom: 1px solid var(--faq-line);
  border-left: 3px solid rgba(255, 255, 255, 0.06);
  transition: border-color var(--transition-base);
}

.page-faq .faq-dept[data-scroll-section].is-highlighted {
  border-left-color: var(--faq-green);
}

.page-faq .faq-dept__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 16px;
  margin-bottom: 28px;
  padding-left: 18px;
  position: relative;
}

.page-faq .faq-dept__head::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 3px;
  background: linear-gradient(180deg, var(--faq-green), rgba(0, 255, 102, 0.2));
}

.page-faq .faq-dept__idx {
  font-size: var(--text-40);
  line-height: 1;
  font-family: var(--font-mono);
  color: transparent;
  -webkit-text-stroke: 1px var(--faq-green);
  margin-right: 4px;
}

.page-faq .faq-dept__cat {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--faq-orange);
  text-transform: uppercase;
  margin: 0 0 4px;
}

.page-faq .faq-dept__title h2 {
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--color-white);
  margin: 0;
}

.page-faq .faq-dept__summary {
  margin-left: auto;
  max-width: 300px;
  font-size: var(--text-13);
  color: var(--faq-gray);
  line-height: 1.6;
}

.page-faq .faq-dept__body {
  padding-left: 18px;
}

.page-faq .faq-dept__body--split,
.page-faq .faq-dept__body--timeline,
.page-faq .faq-dept__body--stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-faq .faq-dept__media {
  border: 1px solid rgba(0, 255, 102, 0.2);
  overflow: hidden;
  background: var(--faq-panel);
}

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

.page-faq .faq-dept__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  padding-top: 20px;
  border-top: 1px dashed rgba(255, 255, 255, 0.12);
  margin-top: 28px;
  font-size: var(--text-13);
  color: var(--faq-gray);
}

.page-faq .faq-dept__foot a {
  font-family: var(--font-mono);
  font-size: var(--text-13);
}

/* ========== FAQ 问答列表 ========== */
.page-faq .faq-stack {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-faq .faq-item {
  background: var(--faq-panel);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.page-faq .faq-item[open] {
  border-color: rgba(0, 255, 102, 0.35);
  box-shadow: 0 0 0 1px rgba(0, 255, 102, 0.06), 0 12px 28px rgba(0, 0, 0, 0.28);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  transition: background var(--transition-fast);
}

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

.page-faq .faq-item__q:hover {
  background: rgba(0, 255, 102, 0.045);
}

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--faq-green);
  outline-offset: -2px;
}

.page-faq .faq-item__no {
  font-family: var(--font-mono);
  font-size: var(--text-12);
  color: var(--faq-green);
  border: 1px solid rgba(0, 255, 102, 0.4);
  padding: 2px 8px;
  flex-shrink: 0;
}

.page-faq .faq-item__txt {
  flex: 1;
  font-size: var(--text-14);
  color: var(--color-white);
  line-height: 1.5;
}

.page-faq .faq-item__icon {
  color: var(--faq-orange);
  font-size: 20px;
  line-height: 1;
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.page-faq .faq-item[open] .faq-item__icon {
  transform: rotate(45deg);
}

.page-faq .faq-item__a {
  padding: 16px 20px 18px;
  border-top: 1px dashed rgba(255, 255, 255, 0.12);
  background: rgba(0, 0, 0, 0.2);
  font-size: var(--text-14);
  line-height: 1.75;
  color: var(--faq-gray);
  animation: faq-flash 0.28s ease-out;
}

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

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

.page-faq .faq-item__a a {
  color: var(--color-bright-blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-item__a a:hover {
  color: var(--faq-green);
}

.page-faq .faq-item__a-prefix {
  color: var(--faq-green);
  font-weight: 700;
  margin-right: 4px;
}

.page-faq .faq-item__bar {
  display: block;
  position: relative;
  height: 2px;
  margin-top: 14px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.08);
}

.page-faq .faq-item[open] .faq-item__bar::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 40%;
  background: linear-gradient(90deg, transparent, var(--faq-green), transparent);
  animation: faq-scan 1s linear infinite;
}

/* ========== 数据指标 ========== */
.page-faq .faq-metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: rgba(0, 255, 102, 0.18);
  border: 1px solid rgba(0, 255, 102, 0.18);
  align-self: start;
}

.page-faq .faq-metric {
  background: #0A1524;
  padding: 20px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-faq .faq-metric__value {
  font-family: var(--font-mono);
  font-size: 28px;
  color: var(--faq-green);
  line-height: 1;
}

.page-faq .faq-metric__value span {
  font-size: var(--text-14);
  margin-left: 2px;
  color: var(--faq-orange);
}

.page-faq .faq-metric__label {
  font-size: var(--text-12);
  color: var(--faq-gray);
  letter-spacing: 0.05em;
}

/* ========== 回访记录时间线 ========== */
.page-faq .faq-tline {
  background: var(--faq-panel);
  border: 1px solid rgba(0, 255, 102, 0.2);
  padding: 24px 20px;
  align-self: start;
}

.page-faq .faq-tline__row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.page-faq .faq-tline__label {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--color-white);
}

.page-faq .faq-tline__track {
  flex: 1;
  height: 8px;
  background: var(--color-dark-blue);
  position: relative;
  overflow: hidden;
}

.page-faq .faq-tline__track i {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 88%;
  background: linear-gradient(90deg, var(--faq-green), var(--color-grad-start));
  animation: faq-breathe 2.4s ease-in-out infinite alternate;
}

.page-faq .faq-tline__note {
  font-size: var(--text-12);
  color: var(--faq-gray);
  margin-top: 10px;
}

.page-faq .faq-tline__tip {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px dashed rgba(255, 255, 255, 0.14);
}

.page-faq .faq-tline__tip span {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--faq-orange);
  margin-bottom: 8px;
}

.page-faq .faq-tline__tip p {
  font-size: var(--text-13);
  line-height: 1.7;
  color: var(--faq-gray);
  margin: 0;
}

/* ========== 版本卡片 ========== */
.page-faq .faq-version-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-bottom: 24px;
}

.page-faq .faq-version-card {
  position: relative;
  padding: 22px 18px;
  background: var(--faq-panel);
  border: 1px solid rgba(255, 255, 255, 0.09);
  clip-path: polygon(0 0, calc(100% - 14px) 0%, 100% 14px, 100% 100%, 0 100%);
}

.page-faq .faq-version-card--v3 {
  border-color: rgba(0, 255, 102, 0.48);
  background: linear-gradient(135deg, rgba(0, 255, 102, 0.09), var(--faq-panel) 42%);
}

.page-faq .faq-version-card__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--text-12);
  padding: 2px 8px;
  background: var(--faq-green);
  color: var(--faq-bg);
  margin-bottom: 12px;
}

.page-faq .faq-version-card--v2 .faq-version-card__tag {
  background: var(--color-bright-blue);
}

.page-faq .faq-version-card--v1 .faq-version-card__tag {
  background: var(--faq-gray);
}

.page-faq .faq-version-card strong {
  font-family: var(--font-display);
  font-size: var(--text-20);
  color: var(--color-white);
  display: block;
}

.page-faq .faq-version-card ul {
  list-style: none;
  padding: 0;
  margin: 12px 0 0;
  font-size: var(--text-13);
  color: var(--faq-gray);
}

.page-faq .faq-version-card li {
  padding: 3px 0;
}

.page-faq .faq-version-card li::before {
  content: ">";
  color: var(--faq-green);
  margin-right: 8px;
}

/* ========== 联系卡片 ========== */
.page-faq .faq-contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-bottom: 24px;
}

.page-faq .faq-contact-card {
  padding: 20px;
  background: var(--faq-panel);
  border: 1px dashed rgba(255, 122, 0, 0.4);
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.page-faq .faq-contact-card:hover {
  border-color: var(--faq-orange);
  background: rgba(255, 122, 0, 0.045);
}

.page-faq .faq-contact-card span {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--faq-gray);
}

.page-faq .faq-contact-card strong {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-16);
  color: var(--color-white);
  margin: 8px 0 6px;
  word-break: break-all;
}

.page-faq .faq-contact-card p {
  font-size: var(--text-13);
  color: var(--faq-gray);
  margin: 0;
}

/* ========== 动画 ========== */
@keyframes faq-scan {
  from {
    transform: translateX(-100%);
  }
  to {
    transform: translateX(350%);
  }
}

@keyframes faq-scan-down {
  from {
    top: -40%;
  }
  to {
    top: 100%;
  }
}

@keyframes faq-flash {
  0% {
    opacity: 0.35;
  }
  60% {
    opacity: 0.75;
  }
  100% {
    opacity: 1;
  }
}

@keyframes faq-breathe {
  from {
    opacity: 0.6;
  }
  to {
    opacity: 1;
  }
}

/* ========== 响应式 ========== */
@media (min-width: 768px) {
  .page-faq .faq-metrics {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding-top: 48px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: 3fr 2fr;
    gap: 48px;
    align-items: center;
    padding: 48px 0 8px;
  }

  .page-faq .faq-hero__content h1 {
    font-size: 52px;
  }

  .page-faq .faq-dept {
    padding: 64px 0 56px;
  }

  .page-faq .faq-dept__title h2 {
    font-size: 30px;
  }

  .page-faq .faq-dept__body--split,
  .page-faq .faq-dept__body--timeline {
    grid-template-columns: 5fr 7fr;
    align-items: start;
  }

  .page-faq .faq-dept__body--stats {
    grid-template-columns: 4fr 8fr;
    align-items: start;
  }

  .page-faq .faq-metric {
    padding: 26px 18px;
  }

  .page-faq .faq-metric__value {
    font-size: 34px;
  }

  .page-faq .faq-tline {
    padding: 32px 24px;
  }
}

.page-faq {
  --text-13: 1rem;
}