.page-faq {
  --faq-gap: clamp(20px, 3vw, 48px);
  --faq-rail: 236px;
  --faq-sticky: 96px;
  color: var(--text-body);
  padding-block: clamp(18px, 3vw, 36px) clamp(56px, 8vw, 104px);
}

.page-faq .breadcrumb {
  margin-bottom: clamp(20px, 3vw, 34px);
  font-size: 12px;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  max-width: 940px;
}

.page-faq .faq-hero .h-display {
  margin: clamp(12px, 1.6vw, 18px) 0 0;
  max-width: 24ch;
}

.page-faq .faq-hero__lede {
  margin: clamp(16px, 2vw, 26px) 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.8;
  color: var(--text-body);
}

.page-faq .faq-hero__marks {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 12px;
}

.page-faq .faq-hero__marks li {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--glass-fill);
  font-size: 13px;
  color: var(--gauze);
  line-height: 1.4;
}

.page-faq .faq-hero__marks .mono {
  color: var(--cyan);
  font-size: 13px;
}

/* ---------- 横幅视觉 ---------- */

.page-faq .faq-banner {
  margin: clamp(28px, 4vw, 52px) 0 clamp(24px, 4vw, 44px);
}

.page-faq .faq-banner .figure__caption {
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--gauze);
}

/* ---------- 双栏骨架 ---------- */

.page-faq .faq-layout {
  display: grid;
  gap: var(--faq-gap);
}

/* ---------- 分类索引 ---------- */

.page-faq .faq-index {
  padding: 14px 14px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(155deg, rgba(59, 240, 228, 0.07), rgba(255, 62, 143, 0.06) 70%, rgba(27, 11, 51, 0) 100%);
}

.page-faq .faq-index__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gauze);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0 0 6px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-faq .faq-index__list li {
  flex: 0 0 auto;
}

.page-faq .faq-index__list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  background: rgba(243, 241, 255, 0.03);
  color: var(--text-body);
  font-size: 13px;
  line-height: 1.4;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-faq .faq-index__num {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-faq .faq-index__dot {
  display: inline-block;
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gauze);
  transition: background 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  border-color: var(--line-cyan);
  color: var(--glass-white);
  background: var(--glass-fill-hi);
}

.page-faq .faq-index__list a:hover .faq-index__dot,
.page-faq .faq-index__list a:focus-visible .faq-index__dot {
  background: var(--cyan);
  box-shadow: 0 0 10px rgba(59, 240, 228, 0.7);
}

/* ---------- 问答分组 ---------- */

.page-faq .faq-group {
  padding-block: clamp(26px, 4vw, 48px);
  background-image: linear-gradient(90deg, var(--line-cyan) 0%, rgba(59, 240, 228, 0.14) 44%, rgba(59, 240, 228, 0) 100%);
  background-repeat: no-repeat;
  background-size: 100% 1px;
  background-position: left top;
  scroll-margin-top: 96px;
}

.page-faq .faq-body > .faq-group:first-child {
  padding-top: 0;
  background-image: none;
}

.page-faq .faq-group__num {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-faq .faq-group__head .h-section {
  margin: 0;
}

.page-faq .faq-group__intro {
  margin: 12px 0 0;
  max-width: 58ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--gauze);
}

.page-faq .faq-group__intro a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(59, 240, 228, 0.34);
}

.page-faq .faq-group__intro a:hover,
.page-faq .faq-group__intro a:focus-visible {
  border-bottom-color: var(--cyan);
}

.page-faq .faq-group__list {
  margin-top: clamp(18px, 2.5vw, 30px);
  display: grid;
  gap: 2px;
}

/* ---------- 问答块 ---------- */

.page-faq .qa {
  border-left: 2px solid rgba(142, 147, 184, 0.26);
  padding-left: clamp(12px, 1.6vw, 20px);
  transition: border-color 0.2s var(--ease);
}

.page-faq .qa[open] {
  border-left-color: var(--cyan);
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  list-style: none;
  cursor: pointer;
  padding: clamp(13px, 1.6vw, 17px) 0;
  font-size: clamp(15px, 1.4vw, 16.5px);
  font-weight: 600;
  line-height: 1.6;
  color: var(--glass-white);
}

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

.page-faq .qa__q::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1.4;
  color: var(--gauze);
  transition: color 0.18s var(--ease);
}

.page-faq .qa__q:hover::after,
.page-faq .qa__q:focus-visible::after {
  color: var(--cyan);
}

.page-faq .qa[open] .qa__q::after {
  content: "−";
  color: var(--cyan);
}

.page-faq .qa__q:focus-visible {
  outline: 1px solid var(--line-cyan);
  outline-offset: 4px;
}

.page-faq .qa__a {
  padding: 0 0 clamp(16px, 2vw, 26px);
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-body);
}

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

.page-faq .qa__a p + p {
  margin-top: 10px;
}

.page-faq .qa__a a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(59, 240, 228, 0.34);
}

.page-faq .qa__a a:hover,
.page-faq .qa__a a:focus-visible {
  border-bottom-color: var(--cyan);
}

.page-faq .qa__a ol {
  list-style: none;
  counter-reset: faqstep;
  margin: 10px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .qa__a ol > li {
  position: relative;
  padding-left: 32px;
}

.page-faq .qa__a ol > li::before {
  counter-increment: faqstep;
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.28em;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

/* ---------- 断线重连：计时环 + 配图 ---------- */

.page-faq .faq-signal {
  display: grid;
  gap: clamp(18px, 2.6vw, 30px);
  margin: clamp(20px, 3vw, 32px) 0 clamp(6px, 1.5vw, 12px);
}

.page-faq .faq-ring {
  position: relative;
  margin: 0;
  padding: clamp(14px, 2vw, 20px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 50% 42%, rgba(59, 240, 228, 0.12), rgba(27, 11, 51, 0) 68%),
    var(--glass-fill);
}

.page-faq .faq-ring:focus-visible {
  outline: 1px solid var(--line-cyan);
  outline-offset: 3px;
}

.page-faq .faq-ring__svg {
  display: block;
  width: 100%;
  height: auto;
  transition: opacity 0.2s var(--ease);
}

.page-faq .faq-ring:hover .faq-ring__svg {
  opacity: 0.5;
}

.page-faq .faq-ring__track {
  fill: none;
  stroke: rgba(142, 147, 184, 0.22);
  stroke-width: 8;
}

.page-faq .faq-ring__win {
  fill: none;
  stroke: var(--cyan);
  stroke-width: 8;
  stroke-linecap: round;
}

.page-faq .faq-ring__over {
  fill: none;
  stroke: var(--orange);
  stroke-width: 8;
  stroke-linecap: round;
}

.page-faq .faq-ring__big {
  fill: var(--glass-white);
  font-family: var(--font-mono);
  font-size: 46px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.page-faq .faq-ring__unit {
  fill: var(--gauze);
  font-family: var(--font-sans);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-faq .faq-ring__cap {
  margin: 10px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--gauze);
}

.page-faq .faq-ring__tip {
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 12px;
  display: grid;
  gap: 6px;
  padding: 12px 14px;
  border: 1px solid var(--line-cyan);
  border-radius: var(--radius-sm);
  background: rgba(10, 7, 24, 0.95);
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--text-body);
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity 0.2s var(--ease), transform 0.2s var(--ease), visibility 0.2s var(--ease);
}

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

.page-faq .faq-ring__tip .mono {
  color: var(--cyan);
  font-size: 11.5px;
}

.page-faq .faq-ring:hover .faq-ring__tip,
.page-faq .faq-ring:focus .faq-ring__tip,
.page-faq .faq-ring:focus-within .faq-ring__tip {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.page-faq .faq-signal__pic {
  margin: 0;
}

/* ---------- 客服通道 ---------- */

.page-faq .faq-contact {
  margin-top: clamp(18px, 2.5vw, 30px);
  padding: clamp(18px, 2.6vw, 28px);
  display: grid;
  gap: 10px;
  border: 1px solid var(--line-magenta);
  border-radius: var(--radius);
  background:
    linear-gradient(140deg, rgba(255, 62, 143, 0.12), rgba(27, 11, 51, 0) 64%),
    var(--glass-fill);
}

.page-faq .faq-contact__label {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--magenta);
}

.page-faq .faq-contact__line {
  margin: 0;
  font-size: clamp(15px, 2vw, 18px);
  line-height: 1.5;
  color: var(--glass-white);
  word-break: break-all;
}

.page-faq .faq-contact__note {
  margin: 0;
  max-width: 48ch;
  font-size: 13px;
  line-height: 1.75;
  color: var(--gauze);
}

.page-faq .faq-contact__more {
  margin: 6px 0 0;
}

/* ---------- 桌面端 ---------- */

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    gap: clamp(32px, 4vw, 72px);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: var(--faq-sticky);
    padding: 18px 16px;
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-index__list li {
    flex: none;
    width: 100%;
  }

  .page-faq .faq-index__list a {
    display: flex;
    width: 100%;
    border: 0;
    border-left: 2px solid transparent;
    border-bottom: 1px solid var(--line-soft);
    border-radius: 0;
    padding: 11px 4px 11px 10px;
    background: none;
    white-space: normal;
  }

  .page-faq .faq-index__list li:last-child a {
    border-bottom: 0;
  }

  .page-faq .faq-index__list a:hover,
  .page-faq .faq-index__list a:focus-visible {
    border-left-color: var(--cyan);
    background: rgba(59, 240, 228, 0.06);
  }

  .page-faq .faq-index__dot {
    margin-left: auto;
  }
}

@media (min-width: 760px) {
  .page-faq .faq-signal {
    grid-template-columns: minmax(0, 232px) minmax(0, 1fr);
    align-items: center;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-contact {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    column-gap: clamp(24px, 3vw, 48px);
  }

  .page-faq .faq-contact__label,
  .page-faq .faq-contact__line,
  .page-faq .faq-contact__note {
    grid-column: 1;
  }

  .page-faq .faq-contact__more {
    grid-column: 2;
    grid-row: 1 / -1;
    align-self: center;
    margin: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .qa__q::after,
  .page-faq .faq-ring__svg,
  .page-faq .faq-ring__tip,
  .page-faq .faq-index__list a,
  .page-faq .faq-index__dot {
    transition: none;
  }
}