.page-faq {
  --faq-h1: clamp(34px, 8.2vw, 76px);
  --faq-line-ink: rgba(11, 17, 18, .16);
  --faq-glow: rgba(37, 244, 208, .14);
  background: var(--abyss);
  color: var(--paper);
  overflow-x: hidden;
}

.page-faq .faq-crumb {
  padding-top: 16px;
}

.page-faq .breadcrumb__link {
  color: var(--mist);
  text-decoration: none;
}

.page-faq .breadcrumb__link:hover,
.page-faq .breadcrumb__link:focus-visible {
  color: var(--fluor);
}

.page-faq .breadcrumb__item,
.page-faq .breadcrumb__list {
  color: var(--mist);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 26px 0 56px;
  background:
    radial-gradient(120% 80% at 84% 0%, var(--faq-glow), transparent 62%),
    linear-gradient(180deg, var(--trench), var(--abyss) 74%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(to bottom, rgba(37, 244, 208, .055) 0 1px, transparent 1px 9px);
  opacity: .65;
  pointer-events: none;
}

.page-faq .faq-hero > * {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 26px;
  align-items: end;
}

.page-faq .faq-hero__title {
  margin: 12px 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--faq-h1);
  line-height: .96;
  letter-spacing: -.025em;
  color: var(--paper);
}

.page-faq .faq-hero__intro {
  max-width: 56ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(244, 235, 221, .82);
}

.page-faq .faq-hero__meta {
  margin: 16px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--fluor);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: .02em;
  color: var(--mist);
}

.page-faq .faq-hero__map {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--trench);
}

.page-faq .media-frame {
  position: relative;
  overflow: hidden;
}

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

.page-faq .media-frame__caption {
  display: block;
  padding: 8px 10px;
  border-top: 1px solid var(--line);
  background: rgba(4, 24, 28, .88);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--mist);
}

/* 三入口状态灯 */
.page-faq .faq-lights {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-light {
  background: var(--trench);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
  transition: background-color 180ms var(--ease), border-color 180ms var(--ease), transform 180ms var(--ease);
}

.page-faq .faq-light:hover,
.page-faq .faq-light:focus-within {
  background: var(--deep);
  border-color: rgba(37, 244, 208, .5);
  transform: translateY(-2px);
}

.page-faq .faq-light__link {
  display: flex;
  flex-direction: column;
  gap: 9px;
  min-height: 100%;
  padding: 18px 20px 20px;
  color: inherit;
  text-decoration: none;
}

.page-faq .faq-light__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.page-faq .faq-light__no {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 26px;
  line-height: 1;
  color: rgba(244, 235, 221, .22);
}

.page-faq .faq-light__dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
}

.page-faq .faq-light__dot--coral {
  background: var(--coral);
  box-shadow: 0 0 0 4px var(--coral-soft);
  animation: faq-pulse 2.4s ease-in-out infinite;
}

.page-faq .faq-light__dot--fluor {
  background: var(--fluor);
  box-shadow: 0 0 0 4px var(--fluor-soft);
}

@keyframes faq-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .42; }
}

.page-faq .faq-light__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  line-height: 1.25;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-faq .faq-light__desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-light__go {
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--fluor);
}

/* ---------- 通用标题 ---------- */
.page-faq .faq-h2 {
  margin: 10px 0 14px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(25px, 5vw, 44px);
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-faq .faq-inline-link {
  color: var(--fluor);
  text-decoration: none;
  border-bottom: 1px solid rgba(37, 244, 208, .45);
}

.page-faq .faq-inline-link:hover,
.page-faq .faq-inline-link:focus-visible {
  border-bottom-color: var(--fluor);
}

.page-faq .faq-inline-link--ink {
  color: var(--coral-deep);
  border-bottom-color: rgba(181, 58, 34, .45);
}

/* ---------- iOS 五步 ---------- */
.page-faq .faq-ios {
  padding: 56px 0;
  background: var(--abyss);
}

.page-faq .faq-ios__grid {
  display: grid;
  gap: 28px;
}

.page-faq .faq-ios__lead {
  margin: 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(244, 235, 221, .78);
}

.page-faq .faq-ios__note {
  margin-top: 20px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  background: rgba(14, 59, 67, .5);
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-ios__note-key {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--fluor);
}

.page-faq .faq-step {
  border-top: 1px solid var(--line);
}

.page-faq .faq-step:last-child {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-step summary {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) 18px;
  align-items: center;
  gap: 12px;
  padding: 15px 4px;
  list-style: none;
  cursor: pointer;
  transition: background-color 180ms var(--ease);
}

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

.page-faq .faq-step summary:hover {
  background: rgba(37, 244, 208, .06);
}

.page-faq .faq-step summary:focus-visible {
  outline: 2px solid var(--fluor);
  outline-offset: 2px;
}

.page-faq .faq-step summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  text-align: right;
  color: var(--fluor);
}

.page-faq .faq-step[open] summary::after {
  content: "−";
}

.page-faq .faq-step__no {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 19px;
  color: var(--fluor);
}

.page-faq .faq-step__label {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--paper);
}

.page-faq .faq-step__body {
  max-width: 60ch;
  margin: 0 0 18px;
  padding: 0 4px 0 54px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- V3 下载 ---------- */
.page-faq .faq-v3 {
  padding: 56px 0;
  background: linear-gradient(180deg, var(--trench), var(--abyss));
}

.page-faq .faq-v3__lead {
  max-width: 58ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-v3__grid {
  display: grid;
  gap: 22px;
  margin-top: 26px;
}

.page-faq .faq-v3__figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--trench);
}

.page-faq .faq-cats {
  display: grid;
  gap: 10px;
}

.page-faq .faq-cat {
  padding: 16px 18px 18px;
  border: 1px solid var(--line);
  background: rgba(4, 24, 28, .62);
}

.page-faq .faq-cat__tag {
  margin: 0 0 8px;
  padding-left: 8px;
  border-left: 2px solid var(--fluor);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .18em;
  color: var(--fluor);
}

.page-faq .faq-cat__title {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 800;
  line-height: 1.35;
  color: var(--paper);
}

.page-faq .faq-cat__body {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-v3__cta {
  margin: 24px 0 0;
}

/* ---------- 页面异常 ---------- */
.page-faq .faq-page {
  padding: 56px 0;
  background: var(--abyss);
}

.page-faq .faq-page__lead {
  max-width: 58ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-checks {
  display: grid;
  gap: 10px;
  margin-top: 26px;
}

.page-faq .faq-check {
  padding: 18px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--fluor);
  background: var(--trench);
}

.page-faq .faq-check__no {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .2em;
  color: var(--mist);
}

.page-faq .faq-check__title {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 800;
  color: var(--paper);
}

.page-faq .faq-check__body {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-notice {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px 20px;
  margin-top: 20px;
  padding: 16px 18px;
  border: 1px solid rgba(255, 107, 74, .42);
  background: var(--coral-soft);
}

.page-faq .faq-notice__text {
  flex: 1 1 240px;
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper);
}

.page-faq .faq-notice__btn {
  flex: 0 0 auto;
}

/* ---------- 速查表 ---------- */
.page-faq .faq-lookup {
  padding: 52px 0 60px;
  background-color: var(--paper);
  background-image: linear-gradient(180deg, rgba(255, 107, 74, .10), transparent 120px);
  color: var(--ink);
  border-top: 1px solid var(--line-ink);
  border-bottom: 1px solid var(--line-ink);
}

.page-faq .faq-kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--coral-deep);
}

.page-faq .faq-lookup__title {
  color: var(--ink);
}

.page-faq .faq-lookup__lead {
  max-width: 56ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(11, 17, 18, .74);
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0 26px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-jump__link {
  display: inline-block;
  padding: 6px 14px;
  border: 1px solid var(--line-ink);
  border-radius: var(--pill);
  background: rgba(255, 255, 255, .6);
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  transition: background-color 180ms var(--ease), color 180ms var(--ease);
}

.page-faq .faq-jump__link:hover,
.page-faq .faq-jump__link:focus-visible {
  background: var(--ink);
  color: var(--paper);
}

.page-faq .faq-qa {
  display: grid;
  gap: 8px;
  padding: 20px 0;
  border-top: 1px solid var(--faq-line-ink);
  scroll-margin-top: 108px;
}

.page-faq .faq-qa:last-child {
  border-bottom: 1px solid var(--faq-line-ink);
}

.page-faq .faq-qa__q {
  margin: 0;
  font-size: 16px;
  font-weight: 800;
  line-height: 1.45;
  color: var(--ink);
}

.page-faq .faq-qa__a {
  margin: 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(11, 17, 18, .78);
}

/* ---------- 人工帮助 ---------- */
.page-faq .faq-help {
  padding: 56px 0 72px;
  background:
    radial-gradient(90% 60% at 100% 0%, rgba(37, 244, 208, .1), transparent 60%),
    var(--abyss);
}

.page-faq .faq-help__grid {
  display: grid;
  gap: 30px;
}

.page-faq .faq-help__lead {
  margin: 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(244, 235, 221, .8);
}

.page-faq .faq-help__list {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-help__list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-help__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 10px;
  height: 1px;
  background: var(--fluor);
}

.page-faq .faq-help__contact {
  margin: 22px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-help__mail {
  font-family: var(--font-mono);
  color: var(--fluor);
  word-break: break-all;
}

.page-faq .faq-help__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 20px 0 0;
}

.page-faq .faq-help__band {
  padding: 18px;
  border: 1px solid var(--line);
  background: var(--trench);
}

.page-faq .faq-help__band-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--fluor);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-cats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-checks {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-step__body {
    padding-left: 56px;
  }
}

@media (min-width: 780px) {
  .page-faq .faq-lights {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }

  .page-faq .faq-hero {
    padding-bottom: 64px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr);
    gap: 48px;
  }

  .page-faq .faq-hero__map {
    transform: rotate(-1.4deg);
  }

  .page-faq .faq-v3__grid {
    grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
    gap: 28px;
    align-items: start;
  }

  .page-faq .faq-qa {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: 12px 32px;
    align-items: start;
    scroll-margin-top: 112px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-ios__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: 56px;
    align-items: start;
  }

  .page-faq .faq-ios__head {
    position: sticky;
    top: 108px;
  }

  .page-faq .faq-help__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    gap: 52px;
    align-items: start;
  }

  .page-faq .faq-ios,
  .page-faq .faq-v3,
  .page-faq .faq-page {
    padding: 72px 0;
  }

  .page-faq .faq-lookup {
    padding: 68px 0 72px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-light__dot--coral {
    animation: none;
  }

  .page-faq .faq-light,
  .page-faq .faq-step summary,
  .page-faq .faq-jump__link {
    transition: none;
  }

  .page-faq .faq-light:hover,
  .page-faq .faq-light:focus-within {
    transform: none;
  }

  .page-faq .faq-hero__map {
    transform: none;
  }
}