.page-faq {
  --faq-radius: 18px;
  --faq-font-label: 12px;
  background: var(--space-blue);
}

.page-faq img {
  max-width: 100%;
  height: auto;
}

/* ===== 框景首屏 ===== */
.page-faq__hero {
  position: relative;
  overflow: hidden;
  padding: 48px 0 56px;
  background:
    radial-gradient(ellipse at 75% 15%, rgba(245, 184, 46, 0.08) 0%, transparent 45%),
    linear-gradient(135deg, var(--space-blue-dark) 0%, var(--space-blue) 60%, var(--space-blue-light) 100%);
}

.page-faq__hero::before,
.page-faq__hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.page-faq__hero::before {
  width: 460px;
  height: 460px;
  right: -170px;
  top: -140px;
  border: 1px dashed rgba(245, 184, 46, 0.25);
}

.page-faq__hero::after {
  width: 260px;
  height: 260px;
  left: -100px;
  bottom: -90px;
  border: 1px dashed rgba(0, 255, 135, 0.18);
}

.page-faq__hero-inner {
  position: relative;
  z-index: 1;
}

.page-faq__frame {
  position: relative;
  padding: 26px 18px 22px;
  border: 1px solid rgba(245, 184, 46, 0.28);
  background: rgba(11, 26, 58, 0.55);
}

.page-faq__frame::before,
.page-faq__frame::after {
  content: "";
  position: absolute;
  width: 44px;
  height: 44px;
  pointer-events: none;
}

.page-faq__frame::before {
  top: -1px;
  left: -1px;
  border-top: 3px solid var(--star-gold);
  border-left: 3px solid var(--star-gold);
}

.page-faq__frame::after {
  bottom: -1px;
  right: -1px;
  border-bottom: 3px solid var(--star-gold);
  border-right: 3px solid var(--star-gold);
}

.page-faq__crumbs {
  margin-bottom: 26px;
}

.page-faq__hero-kicker {
  display: flex;
  align-items: center;
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--aurora);
}

.page-faq__hero-kicker::before {
  content: "";
  flex: none;
  width: 8px;
  height: 8px;
  margin-right: 10px;
  border-radius: 50%;
  background: var(--aurora);
  box-shadow: 0 0 0 4px rgba(0, 255, 135, 0.15), 0 0 14px rgba(0, 255, 135, 0.5);
}

.page-faq__hero-title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 700;
  line-height: 1.22;
  color: var(--star-white);
  max-width: 880px;
}

.page-faq__hero-lead {
  margin: 0 0 24px;
  font-size: 16px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.78);
  max-width: 640px;
}

.page-faq__hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ===== 通用区块 ===== */
.page-faq__section {
  padding: 56px 0;
}

.page-faq__section .section__head {
  margin-bottom: 28px;
}

.page-faq__faq .section__kicker,
.page-faq__update .section__kicker,
.page-faq__contact .section__kicker {
  color: var(--aurora);
}

.page-faq__faq .section__title,
.page-faq__update .section__title,
.page-faq__contact .section__title {
  color: var(--star-white);
}

.page-faq__faq .section__lead,
.page-faq__update .section__lead,
.page-faq__contact .section__lead {
  color: rgba(255, 255, 255, 0.7);
}

/* ===== 热门问题 ===== */
.page-faq__faq {
  background: var(--space-blue);
}

.page-faq__topic-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 32px;
}

.page-faq__topic-links a {
  display: inline-block;
  padding: 8px 16px;
  border: 1px solid rgba(245, 184, 46, 0.35);
  border-radius: 999px;
  background: rgba(245, 184, 46, 0.08);
  color: var(--star-gold);
  font-size: 14px;
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease;
}

.page-faq__topic-links a:hover,
.page-faq__topic-links a:focus {
  background: var(--star-gold);
  color: var(--space-blue-dark);
}

.page-faq__accordion {
  display: grid;
  gap: 16px;
  max-width: 860px;
  margin: 0 auto;
}

.page-faq__item {
  border-radius: var(--faq-radius);
  background: var(--cream);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.page-faq__item[open] {
  box-shadow: 0 16px 40px rgba(245, 184, 46, 0.16);
}

.page-faq__item summary {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 56px 20px 52px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--space-blue-dark);
  cursor: pointer;
  list-style: none;
  transition: background 0.2s ease;
}

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

.page-faq__item summary:hover {
  background: rgba(245, 184, 46, 0.07);
}

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

.page-faq__planet {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: radial-gradient(circle at 32% 30%, #fff8d6 0%, var(--star-gold) 28%, var(--space-blue) 100%);
  box-shadow: 0 0 10px rgba(245, 184, 46, 0.4);
}

.page-faq__item summary::before {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2px solid var(--star-gold);
  font-size: 20px;
  font-weight: 400;
  color: var(--star-gold);
  z-index: 1;
  transition: transform 0.25s ease, background 0.25s ease, color 0.25s ease;
}

.page-faq__item summary::after {
  content: "";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2px solid var(--star-gold);
  transition: background 0.25s ease;
}

.page-faq__item[open] summary::before {
  transform: translateY(-50%) rotate(45deg);
  background: var(--star-gold);
  color: var(--space-blue-dark);
}

.page-faq__item[open] summary::after {
  background: var(--star-gold);
}

.page-faq__answer {
  padding: 0 20px 24px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
}

.page-faq__item[open] .page-faq__answer {
  animation: page-faq-fade-in 0.28s ease;
}

.page-faq__answer a {
  color: var(--signal);
  text-decoration: underline;
  text-underline-offset: 2px;
}

@keyframes page-faq-fade-in {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== 平板使用指南 ===== */
.page-faq__guide {
  background: var(--cream);
  color: var(--ink);
}

.page-faq__guide .section__kicker {
  color: var(--signal);
}

.page-faq__guide .section__title {
  color: var(--space-blue-dark);
}

.page-faq__guide .section__lead {
  color: rgba(43, 30, 14, 0.72);
}

.page-faq__guide-grid {
  display: grid;
  gap: 32px;
  margin-top: 8px;
}

.page-faq__guide-media {
  overflow: hidden;
  border-radius: var(--radius-card);
  background: var(--space-blue);
  box-shadow: var(--shadow-card);
}

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

.page-faq__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-faq__step {
  position: relative;
  padding: 22px 20px 20px 84px;
  background: var(--star-white);
  border-radius: var(--faq-radius);
  box-shadow: 0 6px 18px rgba(43, 30, 14, 0.08);
}

.page-faq__step h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--space-blue-dark);
}

.page-faq__step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.65;
  color: rgba(43, 30, 14, 0.78);
}

.page-faq__step-num {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--space-blue);
}

.page-faq__step .page-faq__step-num {
  position: absolute;
  left: 20px;
  top: 22px;
}

/* ===== 数据更新说明 ===== */
.page-faq__update {
  background:
    radial-gradient(circle at 10% 0%, rgba(245, 184, 46, 0.1) 0%, transparent 40%),
    var(--space-blue);
}

.page-faq__update-grid {
  display: grid;
  gap: 40px;
  margin-top: 8px;
}

.page-faq__timeline {
  display: grid;
  gap: 18px;
}

.page-faq__time-node {
  position: relative;
  padding-left: 56px;
}

.page-faq__time-node::before {
  content: "";
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, var(--star-gold), rgba(245, 184, 46, 0.15));
}

.page-faq__time-node:last-child::before {
  bottom: auto;
  height: 40px;
}

.page-faq__time-dot {
  position: absolute;
  left: 14px;
  top: 20px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--aurora);
  box-shadow: 0 0 0 4px rgba(0, 255, 135, 0.12), 0 0 14px rgba(0, 255, 135, 0.5);
}

.page-faq__time-card {
  padding: 18px 20px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--faq-radius);
  background: rgba(11, 26, 58, 0.72);
}

.page-faq__time-card h3 {
  margin: 8px 0 6px;
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--star-white);
}

.page-faq__time-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.7);
}

.page-faq__update-media {
  overflow: hidden;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
}

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

.page-faq__media-note {
  margin: 0;
  padding: 12px 16px;
  background: var(--space-blue-light);
  color: rgba(255, 255, 255, 0.72);
  font-size: 13px;
}

/* ===== 联系支持 ===== */
.page-faq__contact {
  background:
    radial-gradient(circle at 90% 20%, rgba(245, 184, 46, 0.08) 0%, transparent 35%),
    var(--space-blue-dark);
}

.page-faq__contact-grid {
  display: grid;
  gap: 36px;
  margin-top: 8px;
}

.page-faq__contact-card {
  padding: 26px 22px;
  border-radius: var(--radius-card);
  background: var(--cream);
  box-shadow: var(--shadow-card);
}

.page-faq__contact-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(0, 255, 135, 0.12);
  color: var(--ink);
  font-size: 13px;
  font-weight: 600;
}

.page-faq__contact-card h3 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--space-blue-dark);
}

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

.page-faq__contact-list li {
  display: grid;
  gap: 2px;
  padding-bottom: 14px;
  border-bottom: 1px dashed rgba(43, 30, 14, 0.15);
}

.page-faq__contact-list li:last-child {
  padding-bottom: 0;
  border-bottom: none;
}

.page-faq__contact-label {
  font-size: var(--faq-font-label);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--nebula);
}

.page-faq__contact-value {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  word-break: break-word;
}

.page-faq__contact-note {
  font-size: 13px;
  color: rgba(43, 30, 14, 0.62);
}

.page-faq__trust {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid rgba(43, 30, 14, 0.12);
  font-size: 13px;
  line-height: 1.6;
  color: rgba(43, 30, 14, 0.7);
}

.page-faq__two-step {
  position: relative;
  overflow: hidden;
  padding: 26px 22px;
  border-radius: var(--radius-card);
  background: var(--space-blue-light);
  box-shadow: var(--shadow-card);
}

.page-faq__two-step::before {
  content: "";
  position: absolute;
  width: 180px;
  height: 180px;
  right: -60px;
  top: -60px;
  border: 1px dashed rgba(0, 255, 135, 0.3);
  border-radius: 50%;
}

.page-faq__two-step h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--star-white);
}

.page-faq__two-step > p {
  margin: 0 0 20px;
  font-size: 15px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.72);
}

.page-faq__two-step-list {
  position: relative;
  z-index: 1;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-faq__two-step-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.06);
}

.page-faq__two-step-list .page-faq__step-num {
  flex: none;
  color: var(--aurora);
  font-size: 22px;
}

.page-faq__two-step-list p {
  margin: 0;
  font-size: 15px;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.85);
}

.page-faq__two-step-list a {
  color: var(--star-gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(245, 184, 46, 0.4);
}

.page-faq__two-step-note {
  position: relative;
  z-index: 1;
  margin: 20px 0 0;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

/* ===== 平板及以上 ===== */
@media (min-width: 768px) {
  .page-faq__hero {
    padding: 72px 0 88px;
  }

  .page-faq__frame {
    padding: 48px 48px 40px;
  }

  .page-faq__hero-title {
    font-size: 44px;
  }

  .page-faq__hero-lead {
    font-size: 18px;
  }

  .page-faq__section {
    padding: 80px 0;
  }

  .page-faq__guide-grid {
    grid-template-columns: 7fr 5fr;
    align-items: center;
  }

  .page-faq__update-grid {
    grid-template-columns: 6fr 6fr;
    align-items: center;
  }

  .page-faq__contact-grid {
    grid-template-columns: 5fr 7fr;
    align-items: stretch;
  }

  .page-faq__contact-card,
  .page-faq__two-step {
    padding: 32px 30px;
  }
}

@media (min-width: 1200px) {
  .page-faq__hero {
    padding: 96px 0 112px;
  }

  .page-faq__hero-title {
    font-size: 52px;
  }

  .page-faq__hero-lead {
    font-size: 19px;
  }

  .page-faq__section {
    padding: 96px 0;
  }

  .page-faq__frame {
    padding: 64px 64px 52px;
  }

  .page-faq__guide-grid {
    gap: 56px;
  }

  .page-faq__update-grid {
    gap: 64px;
  }

  .page-faq__contact-grid {
    gap: 48px;
  }
}