.page-faq {
  --faq-radius: var(--radius-md);
  --faq-card-bg: rgba(26, 42, 58, .72);
  background: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: clip;
}

/* ===== 首屏 ===== */
.page-faq .faq-hero {
  position: relative;
  padding: 28px 0 0;
  background:
    radial-gradient(ellipse at 75% 18%, rgba(0, 191, 255, .13), transparent 55%),
    radial-gradient(ellipse at 10% 70%, rgba(0, 255, 136, .07), transparent 45%),
    var(--bg-primary);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 420px;
  height: 420px;
  background: repeating-linear-gradient(135deg, rgba(0, 191, 255, .07) 0, rgba(0, 191, 255, .07) 1px, transparent 1px, transparent 12px);
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-faq .faq-hero-copy {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: 22px;
}

.page-faq .faq-hero .section-label {
  margin-bottom: 14px;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-headline);
  font-size: clamp(44px, 7vw, 92px);
  line-height: .95;
  letter-spacing: -.02em;
  margin: 10px 0 16px;
  color: var(--text-primary);
}

.page-faq .faq-hero-lead {
  font-size: 17px;
  line-height: 1.75;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0;
}

/* 搜索框 */
.page-faq .faq-search {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, .06);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 12px 18px;
  max-width: 540px;
  margin-top: 26px;
  backdrop-filter: blur(6px);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.page-faq .faq-search:focus-within {
  border-color: rgba(0, 255, 136, .4);
  box-shadow: var(--shadow-green);
}

.page-faq .faq-search input {
  background: transparent;
  border: 0;
  outline: none;
  color: var(--text-primary);
  font: 15px/1.6 var(--font-body);
  width: 100%;
}

.page-faq .faq-search input::placeholder {
  color: rgba(136, 153, 170, .72);
}

.page-faq .faq-search-icon {
  flex-shrink: 0;
  color: var(--green);
}

.page-faq .faq-search-hint {
  font-size: 12.5px;
  color: var(--text-secondary);
  margin: 10px 0 0 18px;
  padding-left: 14px;
  border-left: 2px solid rgba(0, 255, 136, .25);
}

/* 首屏主图 */
.page-faq .faq-hero-figure {
  position: relative;
  z-index: 1;
  margin: 36px 0 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  aspect-ratio: 8 / 3;
  background: var(--bg-card);
}

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

/* 快速导航 */
.page-faq .faq-quicknav {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  padding: 24px 0 44px;
}

.page-faq .faq-quicknav-item {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 18px 18px 16px;
  background: rgba(255, 255, 255, .04);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--text-primary);
  position: relative;
  transition: transform var(--transition), border-color var(--transition), background var(--transition);
}

.page-faq .faq-quicknav-item::after {
  content: "";
  position: absolute;
  inset: auto 18px 0;
  height: 2px;
  border-radius: 2px 2px 0 0;
  background: var(--green);
  opacity: 0;
  transition: opacity var(--transition);
}

.page-faq .faq-quicknav-item:hover,
.page-faq .faq-quicknav-item:focus-visible {
  background: var(--bg-card);
  border-color: rgba(0, 255, 136, .35);
  transform: translateY(-3px);
}

.page-faq .faq-quicknav-item:hover::after,
.page-faq .faq-quicknav-item:focus-visible::after {
  opacity: 1;
}

.page-faq .faq-quicknav-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--green);
}

.page-faq .faq-quicknav-item strong {
  font-size: 16px;
  font-weight: 700;
}

.page-faq .faq-quicknav-item small {
  color: var(--text-secondary);
  font-size: 12px;
  line-height: 1.5;
}

/* ===== 分区通用 ===== */
.page-faq .faq-section {
  position: relative;
  padding: 64px 0;
}

.page-faq .faq-section-inner {
  max-width: 920px;
  margin: 0 auto;
}

.page-faq .faq-section-alt {
  background: var(--bg-alt);
}

.page-faq .faq-section-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 28px;
}

.page-faq .faq-topic-icon {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: rgba(0, 255, 136, .1);
  color: var(--green);
  flex-shrink: 0;
}

.page-faq .faq-section-head[data-accent="blue"] .faq-topic-icon {
  background: rgba(0, 191, 255, .12);
  color: var(--blue);
}

.page-faq .faq-section-head[data-accent="orange"] .faq-topic-icon {
  background: rgba(255, 119, 0, .12);
  color: var(--orange);
}

.page-faq .faq-section-title {
  min-width: 0;
}

.page-faq .faq-section-title h2 {
  font-family: var(--font-headline);
  font-size: clamp(24px, 3.2vw, 34px);
  line-height: 1.1;
  margin: 0;
}

.page-faq .faq-section-note {
  font-size: 13px;
  color: var(--text-secondary);
  margin: 4px 0 0;
}

.page-faq .faq-section-index {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: clamp(44px, 6vw, 68px);
  line-height: 1;
  color: rgba(255, 255, 255, .03);
  -webkit-text-stroke: 1px rgba(0, 255, 136, .18);
  font-weight: 700;
  white-space: nowrap;
  pointer-events: none;
  user-select: none;
}

/* ===== 手风琴 ===== */
.page-faq .faq-list {
  display: grid;
  gap: 12px;
}

.page-faq .faq-item {
  background: var(--faq-card-bg);
  border: 1px solid var(--border);
  border-radius: var(--faq-radius);
  overflow: hidden;
  color: var(--text-primary);
  transition: border-color .22s ease, box-shadow .22s ease;
}

.page-faq .faq-item[data-tone="blue"][open] {
  border-color: rgba(0, 191, 255, .42);
  box-shadow: 0 8px 32px rgba(0, 0, 0, .22), var(--shadow-blue);
}

.page-faq .faq-item[data-tone="green"][open] {
  border-color: rgba(0, 255, 136, .42);
  box-shadow: 0 8px 32px rgba(0, 0, 0, .22), var(--shadow-green);
}

.page-faq .faq-item[data-tone="orange"][open] {
  border-color: rgba(255, 119, 0, .38);
  box-shadow: 0 8px 32px rgba(0, 0, 0, .22), 0 0 30px rgba(255, 119, 0, .1);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 16px;
  cursor: pointer;
  list-style: none;
  user-select: none;
}

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

.page-faq .faq-item-cat {
  font-size: 11px;
  font-weight: 700;
  padding: 5px 10px;
  border-radius: var(--radius-pill);
  white-space: nowrap;
  flex-shrink: 0;
  letter-spacing: .02em;
}

.page-faq .faq-item[data-tone="blue"] .faq-item-cat {
  background: rgba(0, 191, 255, .13);
  color: var(--blue);
}

.page-faq .faq-item[data-tone="green"] .faq-item-cat {
  background: rgba(0, 255, 136, .12);
  color: var(--green);
}

.page-faq .faq-item[data-tone="orange"] .faq-item-cat {
  background: rgba(255, 119, 0, .14);
  color: var(--orange);
}

.page-faq .faq-item-q {
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.45;
  flex: 1;
  min-width: 0;
}

.page-faq .faq-item-toggle {
  width: 30px;
  height: 30px;
  flex-shrink: 0;
  margin-left: auto;
  border-radius: 50%;
  background: rgba(255, 255, 255, .06);
  color: var(--text-primary);
  position: relative;
  transition: background .2s ease, color .2s ease;
}

.page-faq .faq-item-toggle::before,
.page-faq .faq-item-toggle::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 11px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transform: translate(-50%, -50%);
  transition: transform .22s ease;
}

.page-faq .faq-item-toggle::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.page-faq .faq-item[open] .faq-item-toggle {
  background: rgba(0, 255, 136, .14);
  color: var(--green);
}

.page-faq .faq-item[open] .faq-item-toggle::after {
  transform: translate(-50%, -50%) rotate(0deg);
}

.page-faq .faq-item-a {
  margin: 0 18px 18px 54px;
  padding: 14px 16px 14px 16px;
  border-left: 2px solid;
  background: rgba(255, 255, 255, .025);
  border-radius: 0 10px 10px 0;
}

.page-faq .faq-item[data-tone="blue"] .faq-item-a {
  border-left-color: rgba(0, 191, 255, .4);
}

.page-faq .faq-item[data-tone="green"] .faq-item-a {
  border-left-color: rgba(0, 255, 136, .4);
}

.page-faq .faq-item[data-tone="orange"] .faq-item-a {
  border-left-color: rgba(255, 119, 0, .4);
}

.page-faq .faq-item-a p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-secondary);
}

/* ===== 流程示意 ===== */
.page-faq .faq-flow {
  margin-top: 40px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  align-items: stretch;
}

.page-faq .faq-flow-steps {
  background: linear-gradient(135deg, rgba(0, 255, 136, .07), rgba(0, 191, 255, .04));
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 26px 24px;
}

.page-faq .faq-flow-steps h3 {
  font-family: var(--font-headline);
  font-size: 20px;
  margin: 0 0 18px;
}

.page-faq .faq-flow-steps ol {
  list-style: none;
  counter-reset: none;
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
}

.page-faq .faq-flow-steps li {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 12px;
  align-items: start;
}

.page-faq .faq-flow-num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(0, 255, 136, .12);
  color: var(--green);
}

.page-faq .faq-flow-steps li div {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-faq .faq-flow-steps li strong {
  font-size: 15px;
  color: var(--text-primary);
}

.page-faq .faq-flow-steps li span {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.page-faq .faq-flow-figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  aspect-ratio: 3 / 2;
  background: var(--bg-card);
}

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

/* ===== 数据统计条 ===== */
.page-faq .faq-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 28px;
}

.page-faq .faq-stat {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px 16px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  position: relative;
  overflow: hidden;
}

.page-faq .faq-stat::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: linear-gradient(180deg, var(--green), var(--blue));
  opacity: .75;
}

.page-faq .faq-stat-num {
  font-family: var(--font-mono);
  font-size: clamp(28px, 4vw, 38px);
  font-weight: 700;
  line-height: 1;
  color: var(--green);
}

.page-faq .faq-stat-unit {
  font-size: 13px;
  color: var(--text-secondary);
  margin-left: 4px;
  font-family: var(--font-body);
}

.page-faq .faq-stat-plus {
  color: var(--orange);
  font-size: 20px;
  margin-left: 2px;
}

.page-faq .faq-stat small {
  font-size: 12px;
  color: var(--text-secondary);
}

.page-faq .faq-disclaimer-link {
  font-size: 13.5px;
  color: var(--text-secondary);
  margin: 24px 0 0;
  padding-left: 16px;
  border-left: 2px solid rgba(0, 191, 255, .3);
}

.page-faq .faq-disclaimer-link a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
}

.page-faq .faq-disclaimer-link a:hover {
  border-color: var(--blue);
}

/* ===== 联系支持 ===== */
.page-faq .faq-contact {
  background: var(--bg-alt);
  padding: 64px 0 72px;
  position: relative;
  overflow: hidden;
}

.page-faq .faq-contact::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 255, 136, .45), transparent);
}

.page-faq .faq-contact-head {
  text-align: center;
  max-width: 620px;
  margin: 0 auto 36px;
}

.page-faq .faq-contact-head .section-label {
  margin-bottom: 14px;
}

.page-faq .faq-contact-head h2 {
  font-family: var(--font-headline);
  font-size: clamp(28px, 4.5vw, 42px);
  line-height: 1.1;
  margin: 0 0 12px;
}

.page-faq .faq-contact-head p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.7;
  margin: 0;
}

.page-faq .faq-contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  max-width: 920px;
  margin: 0 auto 28px;
}

.page-faq .faq-contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: border-color var(--transition), transform var(--transition);
}

.page-faq .faq-contact-card:hover {
  border-color: rgba(0, 255, 136, .3);
  transform: translateY(-2px);
}

.page-faq .faq-contact-icon {
  color: var(--green);
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: rgba(0, 255, 136, .1);
}

.page-faq .faq-contact-card h3 {
  font-size: 12.5px;
  color: var(--text-secondary);
  font-weight: 600;
  margin: 4px 0 0;
  letter-spacing: .04em;
}

.page-faq .faq-contact-value {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  word-break: break-all;
  line-height: 1.5;
}

.page-faq .faq-contact-card a.faq-contact-value {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
}

.page-faq .faq-contact-card a.faq-contact-value:hover {
  border-color: var(--blue);
}

.page-faq .faq-contact-footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  text-align: center;
}

.page-faq .faq-contact-footer p {
  color: var(--text-secondary);
  font-size: 14px;
  margin: 0;
}

.page-faq .faq-contact-footer b {
  color: var(--text-primary);
}

/* ===== 响应式增强 ===== */
@media (min-width: 640px) {
  .page-faq .faq-quicknav {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }

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

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

  .page-faq .faq-item summary {
    padding: 20px 22px;
  }

  .page-faq .faq-item-a {
    margin: 0 22px 20px 66px;
  }
}

@media (min-width: 992px) {
  .page-faq .faq-quicknav {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-faq .faq-section {
    padding: 88px 0;
  }

  .page-faq .faq-flow {
    grid-template-columns: 1fr 1.1fr;
    gap: 24px;
  }

  .page-faq .faq-contact {
    padding: 88px 0 96px;
  }

  .page-faq .faq-contact-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
  }
}