.page-faq {
  background: var(--night);
  color: var(--white);
  font-family: var(--font-body);
  padding-bottom: 8px;
}

.page-faq a {
  color: inherit;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 22px 0 34px;
  border-bottom: 1px solid rgba(126, 155, 143, 0.22);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(46, 230, 200, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(46, 230, 200, 0.08) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: radial-gradient(ellipse at 72% 14%, #000 6%, transparent 70%);
  mask-image: radial-gradient(ellipse at 72% 14%, #000 6%, transparent 70%);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: -120px;
  right: -80px;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(184, 255, 61, 0.22), transparent 68%);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 22px;
}

.page-faq .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-faq .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: rgba(126, 155, 143, 0.6);
}

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

.page-faq .breadcrumb a:hover {
  color: var(--lime);
}

.page-faq .breadcrumb li[aria-current="page"] {
  color: var(--white);
}

.page-faq .faq-hero h1 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 8.4vw, 62px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-faq .faq-hero__lede {
  max-width: 60ch;
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(244, 255, 248, 0.78);
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__stats li {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 10px 18px 10px 0;
  border-right: 1px solid rgba(126, 155, 143, 0.24);
  font-size: 12px;
  color: var(--mist);
}

.page-faq .faq-hero__stats li:last-child {
  border-right: 0;
  padding-right: 0;
}

.page-faq .faq-hero__num {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--lime);
}

.page-faq .faq-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}

.page-faq .faq-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 15px;
  border: 1px solid rgba(184, 255, 61, 0.34);
  border-radius: var(--pill);
  background: rgba(18, 53, 43, 0.7);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  color: var(--white);
  transition: background 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}

.page-faq .faq-chip .num {
  font-size: 11px;
  color: var(--lime);
}

.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--carbon);
  transform: translateY(-1px);
}

.page-faq .faq-chip:hover .num,
.page-faq .faq-chip:focus-visible .num {
  color: var(--carbon);
}

.page-faq .faq-hero__visual {
  margin: 0;
  border: 1px solid rgba(126, 155, 143, 0.3);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--tactic);
  box-shadow: 0 24px 60px rgba(7, 16, 13, 0.55);
}

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

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  padding: 30px 0 40px;
}

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

.page-faq .faq-side {
  border: 1px solid rgba(126, 155, 143, 0.24);
  border-radius: var(--radius-lg);
  background: linear-gradient(165deg, rgba(18, 53, 43, 0.9), rgba(11, 31, 26, 0.9));
  padding: 20px 20px 22px;
}

.page-faq .faq-side .eyebrow {
  margin: 0 0 14px;
}

.page-faq .faq-side__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-side__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px dashed rgba(126, 155, 143, 0.22);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  color: rgba(244, 255, 248, 0.86);
  transition: color 0.16s ease;
}

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

.page-faq .faq-side__list a .num {
  flex: 0 0 auto;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--yellow);
}

.page-faq .faq-side__list a:hover,
.page-faq .faq-side__list a:focus-visible {
  color: var(--lime);
}

.page-faq .faq-side__tip {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid rgba(126, 155, 143, 0.24);
}

.page-faq .faq-side__tip p {
  margin: 0 0 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-side__tip .btn {
  display: inline-block;
  padding: 9px 16px;
  border-radius: var(--pill);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
}

/* ---------- 问题分组 ---------- */
.page-faq .faq-group {
  padding: 0;
}

.page-faq .faq-group + .faq-group {
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid rgba(126, 155, 143, 0.2);
}

.page-faq .faq-group__head {
  position: relative;
  padding-left: 46px;
  margin-bottom: 18px;
}

.page-faq .faq-group__head::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 6px;
  bottom: 4px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--yellow), rgba(255, 210, 63, 0.1));
}

.page-faq .faq-group__num {
  position: absolute;
  left: 0;
  top: -4px;
  font-size: 24px;
  font-weight: 700;
  color: var(--yellow);
  line-height: 1;
}

.page-faq .faq-group__head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px, 5vw, 30px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-faq .faq-group__head p {
  margin: 7px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(244, 255, 248, 0.6);
}

.page-faq .faq-group__media {
  margin: 12px 0;
  border: 1px solid rgba(46, 230, 200, 0.28);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--tactic);
}

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

/* ---------- 手风琴 ---------- */
.page-faq .faq-item {
  position: relative;
  border: 1px solid rgba(126, 155, 143, 0.24);
  border-radius: var(--radius-md);
  background: linear-gradient(160deg, rgba(18, 53, 43, 0.92), rgba(11, 31, 26, 0.94));
  overflow: hidden;
  transition: border-color 0.18s ease, background 0.18s ease;
}

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

.page-faq .faq-item[open] {
  border-color: rgba(184, 255, 61, 0.5);
  background: linear-gradient(160deg, rgba(24, 68, 54, 0.92), rgba(11, 31, 26, 0.95));
}

.page-faq .faq-item[open]::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--lime);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 15px 16px 15px 19px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--white);
}

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

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

.page-faq .faq-item__q {
  flex: 1 1 auto;
}

.page-faq .faq-item__mark {
  position: relative;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  margin-top: 1px;
  border-radius: 50%;
  border: 1px solid rgba(184, 255, 61, 0.55);
  background: rgba(184, 255, 61, 0.1);
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--lime);
  transform: translate(-50%, -50%);
}

.page-faq .faq-item__mark::before {
  width: 10px;
  height: 2px;
}

.page-faq .faq-item__mark::after {
  width: 2px;
  height: 10px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.page-faq .faq-item[open] .faq-item__mark::after {
  transform: translate(-50%, -50%) scaleY(0);
  opacity: 0;
}

.page-faq .faq-item[open] .faq-item__mark {
  background: var(--lime);
}

.page-faq .faq-item[open] .faq-item__mark::before {
  background: var(--carbon);
}

.page-faq .faq-item__a {
  padding: 0 18px 18px 19px;
  border-top: 1px solid rgba(126, 155, 143, 0.2);
  margin-top: 2px;
  padding-top: 14px;
}

.page-faq .faq-item__a p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(244, 255, 248, 0.8);
}

.page-faq .faq-group__more {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-group__more a {
  color: var(--lime);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 底部支持 ---------- */
.page-faq .faq-support {
  position: relative;
  padding: 32px 0 40px;
  border-top: 1px solid rgba(184, 255, 61, 0.28);
  background: linear-gradient(180deg, rgba(18, 53, 43, 0.75), rgba(7, 16, 13, 0.95));
}

.page-faq .faq-support__inner {
  display: grid;
  gap: 24px;
}

.page-faq .faq-support__copy .eyebrow {
  margin: 0 0 10px;
}

.page-faq .faq-support__copy h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 6vw, 36px);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-faq .faq-support__copy p:last-child {
  margin: 12px 0 0;
  max-width: 56ch;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(244, 255, 248, 0.72);
}

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

.page-faq .faq-support__card {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "idx title"
    "idx desc";
  gap: 0 12px;
  padding: 14px 16px;
  border: 1px solid rgba(126, 155, 143, 0.28);
  border-radius: var(--radius-md);
  background: rgba(7, 16, 13, 0.55);
  text-decoration: none;
  transition: border-color 0.18s ease, background 0.18s ease, transform 0.18s ease;
}

.page-faq .faq-support__card:hover,
.page-faq .faq-support__card:focus-visible {
  border-color: var(--lime);
  background: rgba(18, 53, 43, 0.9);
  transform: translateY(-2px);
}

.page-faq .faq-support__idx {
  grid-area: idx;
  align-self: center;
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(184, 255, 61, 0.14);
  color: var(--lime);
  font-size: 12px;
  font-weight: 700;
}

.page-faq .faq-support__card strong {
  grid-area: title;
  font-size: 15px;
  color: var(--white);
}

.page-faq .faq-support__card span:last-child {
  grid-area: desc;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--mist);
}

/* ---------- 断点 ---------- */
@media (min-width: 620px) {
  .page-faq .faq-support__cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-faq .faq-hero {
    padding: 34px 0 48px;
  }

  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: center;
    gap: 40px;
  }

  .page-faq .faq-hero__visual {
    margin-top: 0;
  }

  .page-faq .faq-item summary {
    font-size: 15.5px;
    padding: 17px 20px 17px 22px;
  }

  .page-faq .faq-item__a {
    padding: 16px 20px 20px 22px;
  }

  .page-faq .faq-support__inner {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    align-items: center;
    gap: 36px;
  }

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

@media (min-width: 1040px) {
  .page-faq .faq-body {
    padding: 42px 0 56px;
  }

  .page-faq .faq-body__grid {
    grid-template-columns: 268px minmax(0, 1fr);
    gap: 46px;
    align-items: start;
  }

  .page-faq .faq-side {
    position: -webkit-sticky;
    position: sticky;
    top: calc(var(--header-h) + 16px);
  }

  .page-faq .faq-group__head {
    padding-left: 54px;
  }

  .page-faq .faq-group__num {
    font-size: 30px;
  }

  .page-faq .faq-support__cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-support__card {
    grid-template-columns: auto 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-chip,
  .page-faq .faq-support__card,
  .page-faq .faq-item__mark::after {
    transition: none;
  }
}