.page-faq {
  background: var(--ink-900);
  color: var(--paper);
}

.page-faq .lead {
  color: var(--mist);
  line-height: 1.78;
}

.page-faq .faq-strong {
  color: var(--cyan);
  font-weight: 600;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: clamp(30px, 6.5vw, 74px) clamp(34px, 7vw, 82px);
  background:
    radial-gradient(115% 85% at 100% 0%, rgba(61, 245, 200, 0.14), transparent 58%),
    linear-gradient(155deg, var(--ink-800), var(--ink-900) 62%);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: auto -14% -48% 40%;
  height: 74%;
  z-index: -1;
  background: linear-gradient(90deg, rgba(255, 138, 61, 0.2), rgba(92, 200, 255, 0.12));
  transform: rotate(-9deg);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(28px, 4.4vw, 54px);
  align-items: center;
}

.page-faq .faq-hero__copy h1 {
  margin: 14px 0 0;
  font-size: clamp(30px, 5.4vw, 54px);
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-hero__copy .lead {
  margin: 18px 0 0;
  max-width: 48ch;
  font-size: 16.5px;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-quick {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .faq-quick a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-sm);
  background: rgba(18, 56, 46, 0.55);
  color: var(--paper);
  font-size: 15px;
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-quick a:hover,
.page-faq .faq-quick a:focus-visible {
  border-color: var(--cyan);
  background: rgba(61, 245, 200, 0.1);
  color: var(--cyan-soft);
}

.page-faq .faq-quick .mono {
  color: var(--cyan);
  font-size: 12px;
  letter-spacing: 0.08em;
}

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

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

@media (min-width: 700px) {
  .page-faq .faq-quick {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: 1.05fr 0.95fr;
  }

  .page-faq .faq-hero::after {
    inset: auto -12% -40% 52%;
    height: 66%;
  }
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  background:
    linear-gradient(180deg, var(--ink-900), var(--ink-750) 40%, var(--ink-900));
}

.page-faq .faq-layout {
  display: grid;
  gap: clamp(24px, 3.4vw, 46px);
}

.page-faq .faq-rail {
  display: grid;
  gap: 14px;
  align-content: start;
  padding: 20px;
  background: var(--ink-800);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
}

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

.page-faq .faq-rail__list a {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 10px 13px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-sm);
  color: var(--paper);
  font-size: 15px;
  white-space: nowrap;
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-rail__list a:hover,
.page-faq .faq-rail__list a:focus-visible {
  border-color: var(--cyan);
  background: rgba(61, 245, 200, 0.1);
  color: var(--cyan-soft);
}

.page-faq .faq-rail__list .mono {
  color: var(--cyan);
  font-size: 12px;
  letter-spacing: 0.06em;
}

.page-faq .faq-rail__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: 236px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 28px;
  }

  .page-faq .faq-rail__list {
    flex-direction: column;
    gap: 4px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-rail__list a {
    border: 0;
    border-left: 3px solid transparent;
    border-radius: 0 var(--r-sm) var(--r-sm) 0;
    white-space: normal;
  }

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

/* ---------- 问题分组 ---------- */
.page-faq .faq-groups {
  display: grid;
  gap: clamp(26px, 3.8vw, 50px);
}

.page-faq .faq-group {
  position: relative;
  padding: clamp(20px, 3vw, 32px);
  background: linear-gradient(180deg, var(--ink-750), var(--ink-800));
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-soft);
  scroll-margin-top: 84px;
}

.page-faq .faq-group::before {
  content: "";
  position: absolute;
  left: 0;
  top: clamp(20px, 3vw, 30px);
  width: 4px;
  height: 68px;
  border-radius: 0 4px 4px 0;
  background: var(--cyan);
}

.page-faq .faq-group--entry::before { background: var(--blue); }
.page-faq .faq-group--schedule::before { background: var(--cyan); }
.page-faq .faq-group--lineup::before { background: var(--orange); }
.page-faq .faq-group--version::before { background: var(--cyan-soft); }
.page-faq .faq-group--support::before { background: var(--red); }

.page-faq .faq-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-group__no {
  font-size: clamp(26px, 4.2vw, 38px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--cyan);
}

.page-faq .faq-group__title {
  flex: 1 1 220px;
  min-width: 0;
}

.page-faq .faq-group__title h2 {
  margin: 0;
  font-size: clamp(20px, 2.7vw, 26px);
  line-height: 1.25;
  color: var(--paper);
}

.page-faq .faq-group__title p {
  margin: 7px 0 0;
  font-size: 14.5px;
  line-height: 1.7;
}

.page-faq .faq-group__feature {
  display: grid;
  gap: 18px;
  margin-top: 20px;
  padding: 16px;
  border: 1px solid rgba(255, 138, 61, 0.3);
  border-radius: var(--r-md);
  background: rgba(255, 138, 61, 0.08);
}

.page-faq .faq-group__feature p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--paper);
}

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

.page-faq .faq-group__media img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--r-md);
  object-fit: cover;
}

@media (min-width: 720px) {
  .page-faq .faq-group__feature {
    grid-template-columns: minmax(0, 1fr) 250px;
    align-items: center;
    gap: 22px;
  }
}

/* ---------- 折叠问答 ---------- */
.page-faq .accordion {
  display: grid;
  margin-top: 8px;
}

.page-faq .accordion__item {
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .accordion__item:last-child {
  border-bottom: 0;
}

.page-faq .accordion__trigger {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 16px 2px;
  cursor: pointer;
  list-style: none;
  color: var(--paper);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  transition: color var(--dur) var(--ease);
}

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

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

.page-faq .faq-item__no {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-faq .faq-item__mark {
  width: 10px;
  height: 10px;
  margin-right: 6px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(45deg);
  transition: transform var(--dur) var(--ease);
}

.page-faq .accordion__item[open] .faq-item__mark {
  transform: rotate(-135deg);
}

.page-faq .accordion__item[open] .accordion__trigger {
  color: var(--cyan-soft);
}

.page-faq .accordion__panel {
  padding: 0 4px 18px 0;
}

.page-faq .faq-item__panel p {
  margin: 0 0 10px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-item__panel p:last-child {
  margin-bottom: 0;
}

.page-faq .accordion__item[open] .accordion__panel {
  animation: faqFade 0.26s var(--ease);
}

@keyframes faqFade {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: none; }
}

/* ---------- 联系区 ---------- */
.page-faq .faq-help {
  background: linear-gradient(180deg, var(--ink-900), var(--ink-800));
  border-top: 1px solid var(--line);
}

.page-faq .faq-help__grid {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
}

.page-faq .faq-help__copy h2 {
  margin: 12px 0 0;
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1.22;
  color: var(--paper);
}

.page-faq .faq-help__copy .lead {
  margin: 14px 0 0;
  max-width: 42ch;
  font-size: 16px;
}

.page-faq .faq-contact {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-faq .faq-contact li {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
  padding: 13px 0;
  border-bottom: 1px dashed var(--line-soft);
}

.page-faq .faq-contact__k {
  flex: 0 0 96px;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--cyan);
  text-transform: uppercase;
}

.page-faq .faq-contact__v {
  flex: 1 1 220px;
  min-width: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper);
}

.page-faq .faq-help__links {
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-faq .faq-help__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 14px;
  padding: 16px 18px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: rgba(12, 42, 35, 0.7);
  color: var(--paper);
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-help__link:hover,
.page-faq .faq-help__link:focus-visible {
  border-color: var(--cyan);
  background: rgba(61, 245, 200, 0.08);
  transform: translateX(3px);
}

.page-faq .faq-help__link .mono {
  grid-row: span 2;
  align-self: center;
  color: var(--cyan);
  font-size: 15px;
}

.page-faq .faq-help__link strong {
  display: block;
  font-size: 16px;
  color: var(--paper);
}

.page-faq .faq-help__link span:last-child {
  font-size: 14px;
  line-height: 1.65;
  color: var(--mist);
}

@media (min-width: 900px) {
  .page-faq .faq-help__grid {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
}

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

  .page-faq .faq-help__link:hover,
  .page-faq .faq-help__link:focus-visible {
    transform: none;
  }
}