/* ===== 常见问题 · 页面专属样式（作用域 .page-faq） ===== */
.page-faq {
  --faq-soft-line: rgba(22, 74, 110, .12);
  --faq-cyan-line: rgba(45, 225, 194, .18);
  --faq-card-shadow: 0 20px 44px -34px rgba(6, 24, 38, .55);
  position: relative;
  overflow-x: hidden;
  background: var(--deep-900);
  color: var(--tx-hi);
  font-family: var(--font-sans);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 34px 0 52px;
  background-color: var(--deep-900);
  background-image:
    radial-gradient(120% 100% at 88% -12%, rgba(45, 225, 194, .16), transparent 58%),
    radial-gradient(95% 90% at -6% 6%, rgba(255, 107, 74, .14), transparent 56%),
    linear-gradient(rgba(45, 225, 194, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(45, 225, 194, .045) 1px, transparent 1px);
  background-size: auto, auto, 46px 46px, 46px 46px;
  border-bottom: 1px solid var(--faq-cyan-line);
}

.page-faq .faq-frame {
  position: absolute;
  inset: 10px;
  border: 1px solid rgba(45, 225, 194, .16);
  border-radius: 22px;
  pointer-events: none;
}

.page-faq .faq-hero > .wrap {
  position: relative;
  z-index: 1;
  padding-inline: 8px;
}

.page-faq .breadcrumbs {
  color: var(--tx-lo);
  margin-bottom: 22px;
}

.page-faq .breadcrumbs a {
  color: var(--cyan-400);
}

.page-faq .breadcrumbs a:hover {
  color: var(--coral-300);
}

.page-faq .faq-hero h1 {
  margin: 12px 0 0;
  font-size: var(--fs-48);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -.02em;
  color: #fff;
}

.page-faq .faq-hero .lead {
  max-width: 60ch;
  margin: 18px 0 0;
  color: var(--tx-mi);
}

/* 状态面板 */
.page-faq .faq-status-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 34px;
}

.page-faq .faq-status-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .14em;
  color: var(--tx-lo);
}

.page-faq .faq-status {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  border: 1px solid var(--faq-cyan-line);
  border-radius: var(--radius-m);
  background: rgba(45, 225, 194, .16);
  overflow: hidden;
}

.page-faq .faq-status li {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: baseline;
  gap: 14px;
  margin: 0;
  padding: 14px 16px;
  background: rgba(6, 24, 38, .86);
  transition: background var(--speed) var(--ease);
}

.page-faq .faq-status li:hover {
  background: rgba(13, 42, 66, .95);
}

.page-faq .faq-status-num {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .06em;
  color: var(--cyan-400);
}

.page-faq .faq-status-text {
  font-size: var(--fs-16);
  line-height: 1.55;
  color: var(--tx-hi);
}

/* ---------- 问答主体 ---------- */
.page-faq .faq-body {
  padding: 48px 0 60px;
  background: var(--light-50);
  color: var(--ink-900);
}

.page-faq .faq-body-head {
  max-width: 58ch;
}

.page-faq .faq-body-head h2 {
  margin: 10px 0 0;
  font-size: var(--fs-36);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--ink-900);
}

.page-faq .faq-body-head p {
  margin: 14px 0 0;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--ink-700);
}

/* 分类标签 */
.page-faq .faq-tabs {
  margin-top: 30px;
}

.page-faq .faq-tablist {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  margin: 0 -20px;
  padding: 4px 20px 12px;
}

.page-faq .faq-tablist::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-tab {
  flex: 0 0 auto;
  appearance: none;
  border: 1px solid var(--faq-soft-line);
  background: #fff;
  color: var(--ink-700);
  font-family: inherit;
  font-size: var(--fs-14);
  font-weight: 600;
  line-height: 1;
  padding: 12px 17px;
  border-radius: 999px;
  white-space: nowrap;
  cursor: pointer;
  transition:
    background var(--speed) var(--ease),
    color var(--speed) var(--ease),
    border-color var(--speed) var(--ease),
    box-shadow var(--speed) var(--ease);
}

.page-faq .faq-tab:hover {
  border-color: var(--coral-300);
  color: var(--ink-900);
}

.page-faq .faq-tab[aria-selected="true"] {
  background: var(--deep-700);
  border-color: var(--deep-700);
  color: #fff;
  box-shadow: inset 0 0 0 1px rgba(45, 225, 194, .55);
}

.page-faq .faq-tab:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: 2px;
}

/* 问答面板 */
.page-faq .faq-panel {
  margin-top: 20px;
  padding: 6px 18px 12px;
  background: #fff;
  border: 1px solid var(--faq-soft-line);
  border-radius: var(--radius-l);
  box-shadow: var(--faq-card-shadow);
}

.page-faq .faq-panel[hidden] {
  display: none;
}

.page-faq .faq-panel-title {
  margin: 18px 0 6px;
  padding-left: 14px;
  border-left: 3px solid var(--coral-500);
  font-size: var(--fs-22);
  font-weight: 800;
  line-height: 1.35;
  color: var(--ink-900);
}

/* 手风琴 */
.page-faq .faq-item {
  border-bottom: 1px solid var(--faq-soft-line);
}

.page-faq .faq-item:last-of-type {
  border-bottom: 0;
}

.page-faq .faq-item summary {
  list-style: none;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 18px 0;
  cursor: pointer;
  font-size: var(--fs-16);
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink-900);
  transition: color var(--speed) var(--ease);
}

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

.page-faq .faq-item summary::after {
  content: "";
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
  margin-left: auto;
  margin-top: 5px;
  background-image:
    linear-gradient(var(--coral-500), var(--coral-500)),
    linear-gradient(var(--coral-500), var(--coral-500));
  background-position: center, center;
  background-size: 100% 2px, 2px 100%;
  background-repeat: no-repeat;
  transition: transform var(--speed) var(--ease);
}

.page-faq .faq-item summary:hover {
  color: var(--deep-500);
}

.page-faq .faq-item[open] summary {
  color: var(--ink-900);
}

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

.page-faq .faq-answer {
  padding: 0 0 20px;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: var(--ink-700);
}

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

.page-faq .faq-answer a {
  color: var(--deep-500);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(22, 74, 110, .35);
  transition: color var(--speed) var(--ease), text-decoration-color var(--speed) var(--ease);
}

.page-faq .faq-answer a:hover {
  color: var(--coral-500);
  text-decoration-color: var(--coral-500);
}

.page-faq .faq-item[open] .faq-answer {
  animation: faqAnswerIn .3s var(--ease);
}

@keyframes faqAnswerIn {
  from {
    opacity: 0;
    transform: translateY(-5px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* 步骤列表 */
.page-faq .faq-steps {
  list-style: none;
  counter-reset: faqstep;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-steps li {
  position: relative;
  counter-increment: faqstep;
  padding-left: 46px;
  font-size: var(--fs-16);
  line-height: 1.75;
}

.page-faq .faq-steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  padding: 2px 6px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  line-height: 1.4;
  color: var(--coral-500);
  border: 1px solid rgba(255, 107, 74, .38);
  border-radius: var(--radius-s);
}

/* 配图 */
.page-faq .faq-shot {
  margin: 22px 0 24px;
  max-width: 420px;
}

/* ---------- 底部引导 ---------- */
.page-faq .faq-cta {
  padding: 52px 0 60px;
  background: var(--deep-900);
  border-top: 1px solid var(--faq-cyan-line);
}

.page-faq .faq-cta-inner {
  display: grid;
  gap: 26px;
}

.page-faq .faq-cta-copy h2 {
  margin: 10px 0 0;
  font-size: var(--fs-28);
  font-weight: 800;
  line-height: 1.25;
  color: #fff;
}

.page-faq .faq-cta-copy p {
  margin: 14px 0 0;
  max-width: 56ch;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--tx-mi);
}

.page-faq .faq-cta-side {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-cta-side .btn {
  text-decoration: none;
}

.page-faq .faq-cta-side .btn--ghost {
  color: var(--tx-hi);
  border-color: rgba(45, 225, 194, .42);
}

.page-faq .faq-cta-side .btn--ghost:hover {
  border-color: var(--cyan-400);
  color: var(--cyan-400);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-hero {
    padding: 52px 0 68px;
  }

  .page-faq .faq-hero h1 {
    font-size: var(--fs-64);
  }

  .page-faq .faq-frame {
    inset: 18px;
    border-radius: 28px;
  }

  .page-faq .faq-hero > .wrap {
    padding-inline: 18px;
  }

  .page-faq .faq-tablist {
    margin: 0;
    padding: 4px 0 14px;
  }

  .page-faq .faq-status li {
    padding: 15px 20px;
  }

  .page-faq .faq-shot {
    margin-inline: auto;
  }
}

@media (min-width: 860px) {
  .page-faq .faq-status {
    grid-template-columns: 1fr 1fr;
  }

  .page-faq .faq-body {
    padding: 64px 0 80px;
  }

  .page-faq .faq-panel {
    padding: 8px 32px 16px;
  }

  .page-faq .faq-item summary {
    padding: 20px 0;
    font-size: var(--fs-18);
  }

  .page-faq .faq-cta-inner {
    grid-template-columns: minmax(0, 1.45fr) auto;
    align-items: center;
  }

  .page-faq .faq-cta {
    padding: 68px 0 76px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item[open] .faq-answer {
    animation: none;
  }

  .page-faq .faq-item summary::after {
    transition: none;
  }
}