.page-faq {
  --faq-hero-line: rgba(42, 58, 102, 0.5);
  background: var(--void);
  color: var(--ink);
}

.page-faq .container {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
  position: relative;
  z-index: 1;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(24px, 5vw, 60px) 0 clamp(34px, 5vw, 64px);
  background:
    radial-gradient(110% 80% at 88% -12%, rgba(139, 92, 246, 0.34), transparent 62%),
    radial-gradient(80% 60% at 4% 6%, rgba(255, 107, 44, 0.18), transparent 60%),
    linear-gradient(180deg, #071026 0%, var(--void) 82%);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(var(--faq-hero-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--faq-hero-line) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: 0.55;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 88%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 88%);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
  align-items: center;
}

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

.page-faq .faq-hero h1 {
  margin: 10px 0 0;
  font-size: clamp(28px, 7vw, 60px);
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-faq .faq-hl {
  display: inline;
  padding: 0 0.08em;
  color: #ffffff;
  background: linear-gradient(180deg, transparent 62%, rgba(255, 107, 44, 0.5) 62%);
}

.page-faq .faq-hero .lede {
  margin: 16px 0 0;
  max-width: 34em;
  color: var(--muted);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 20px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-faq .faq-hero__divider {
  width: 1px;
  height: 12px;
  background: var(--line);
}

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

.page-faq .faq-hero__visual {
  position: relative;
  order: -1;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid rgba(255, 107, 44, 0.32);
  background: linear-gradient(140deg, rgba(18, 34, 77, 0.9), rgba(5, 10, 26, 0.9));
  box-shadow: 0 28px 66px rgba(3, 7, 18, 0.65);
}

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

.page-faq .faq-hero__visual::after {
  content: "Q & A / 46";
  position: absolute;
  left: 14px;
  bottom: 14px;
  padding: 4px 10px;
  border-radius: var(--pill);
  background: var(--green);
  color: #04101f;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  font-weight: 700;
}

/* ---------- 索引条与两列骨架 ---------- */
.page-faq .faq-hub {
  padding: clamp(26px, 5vw, 54px) 0 clamp(38px, 6vw, 76px);
}

.page-faq .faq-hub__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px;
  margin-bottom: clamp(22px, 3vw, 34px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(18, 34, 77, 0.88), rgba(11, 21, 51, 0.88));
}

.page-faq .faq-hub__jump {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  text-decoration: none;
  white-space: nowrap;
  padding: 7px 12px;
  border-radius: var(--pill);
  color: var(--green);
  border: 1px solid rgba(57, 255, 136, 0.35);
  transition: background 180ms var(--ease-out);
}

.page-faq .faq-hub__jump:hover,
.page-faq .faq-hub__jump:focus-visible {
  background: rgba(57, 255, 136, 0.12);
}

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

/* ---------- 侧栏索引 ---------- */
.page-faq .faq-index {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(18, 34, 77, 0.9), rgba(11, 21, 51, 0.95));
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--violet);
}

.page-faq .faq-index__nav ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4px;
}

.page-faq .faq-index__nav a {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 10px;
  border-radius: var(--radius-sm);
  border-left: 2px solid transparent;
  color: var(--muted);
  font-size: 14px;
  text-decoration: none;
  transition: color 180ms var(--ease-out), background 180ms var(--ease-out), border-color 180ms var(--ease-out);
}

.page-faq .faq-index__nav a:hover,
.page-faq .faq-index__nav a:focus-visible {
  color: var(--ink);
  background: rgba(255, 107, 44, 0.1);
  border-left-color: var(--orange);
}

.page-faq .faq-index__nav .mono {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--orange);
}

.page-faq .faq-index__note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 问答流 ---------- */
.page-faq .faq-block + .faq-block {
  margin-top: clamp(30px, 4vw, 48px);
}

.page-faq .faq-block__head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-block__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--violet);
  padding: 3px 9px;
  border: 1px solid rgba(139, 92, 246, 0.45);
  border-radius: var(--pill);
}

.page-faq .faq-block__title {
  margin: 0;
  font-size: clamp(19px, 2.4vw, 24px);
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-faq .faq-block__head .tag {
  margin-left: auto;
}

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

.page-faq .faq-item {
  border-bottom: 1px solid rgba(42, 58, 102, 0.75);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 4px;
  list-style: none;
  cursor: pointer;
  font-size: clamp(15px, 1.7vw, 16.5px);
  font-weight: 500;
  color: var(--ink);
  transition: color 180ms var(--ease-out);
}

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

.page-faq .faq-item summary:hover,
.page-faq .faq-item summary:focus-visible {
  color: var(--orange-hi);
}

.page-faq .faq-item summary::after {
  content: "";
  flex: none;
  width: 9px;
  height: 9px;
  margin: 6px 4px 0 auto;
  border-right: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: rotate(45deg);
  transition: transform 200ms var(--ease-out), border-color 200ms var(--ease-out);
}

.page-faq .faq-item[open] summary::after {
  transform: rotate(225deg);
  border-color: var(--orange);
}

.page-faq .faq-item__idx {
  flex: none;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--orange);
}

.page-faq .faq-item__q {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-item__a {
  padding: 0 4px 18px 38px;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.8;
}

.page-faq .faq-item__a p {
  margin: 0;
  max-width: 58ch;
}

/* ---------- 焕新版规则六组 ---------- */
.page-faq .rules {
  margin-top: clamp(40px, 6vw, 74px);
  padding-top: clamp(30px, 4vw, 52px);
  border-top: 1px solid var(--line);
  padding-bottom: clamp(10px, 2vw, 20px);
}

.page-faq .rules__head {
  max-width: 46em;
}

.page-faq .rules__head .section-title {
  margin: 8px 0 0;
}

.page-faq .rules__head .lede {
  margin: 14px 0 0;
  color: var(--muted);
  line-height: 1.8;
}

.page-faq .rules__body {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  margin-top: clamp(22px, 3vw, 34px);
}

.page-faq .rules__figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(139, 92, 246, 0.3);
  background: linear-gradient(150deg, rgba(139, 92, 246, 0.16), rgba(11, 21, 51, 0.9));
}

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

.page-faq .rules__cap {
  display: block;
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
}

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

.page-faq .rules__list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: rgba(18, 34, 77, 0.62);
  transition: border-color 180ms var(--ease-out), transform 180ms var(--ease-out);
}

.page-faq .rules__list li:hover {
  border-color: rgba(255, 107, 44, 0.55);
  transform: translateY(-3px);
}

.page-faq .rules__num {
  flex: none;
  padding-top: 2px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--green);
}

.page-faq .rules__list h3 {
  margin: 0 0 4px;
  font-size: 15px;
  font-weight: 700;
}

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

/* ---------- 兜底联系 ---------- */
.page-faq .faq-contact {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
  margin-top: clamp(40px, 6vw, 74px);
  padding: clamp(22px, 4vw, 44px);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 107, 44, 0.4);
  background:
    radial-gradient(90% 120% at 100% 0%, rgba(139, 92, 246, 0.28), transparent 60%),
    linear-gradient(140deg, rgba(255, 107, 44, 0.18), rgba(11, 21, 51, 0.95) 58%);
}

.page-faq .faq-contact h2 {
  margin: 8px 0 10px;
  font-size: clamp(23px, 3.4vw, 36px);
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-faq .faq-contact__copy p {
  margin: 0 0 18px;
  color: var(--muted);
  line-height: 1.8;
}

.page-faq .faq-top-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: 8px;
  padding: 7px 13px;
  border-radius: var(--pill);
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  text-decoration: none;
  transition: color 180ms var(--ease-out), border-color 180ms var(--ease-out);
}

.page-faq .faq-top-link:hover,
.page-faq .faq-top-link:focus-visible {
  color: var(--ink);
  border-color: rgba(255, 107, 44, 0.6);
}

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

.page-faq .faq-contact__list li {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: rgba(5, 10, 26, 0.55);
}

.page-faq .faq-contact__k {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.page-faq .faq-contact__v {
  font-size: 14px;
  color: var(--ink);
  overflow-wrap: anywhere;
}

/* ---------- 响应式 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    gap: clamp(28px, 4vw, 56px);
  }

  .page-faq .faq-hero__visual {
    order: 0;
  }

  .page-faq .rules__body {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: 246px minmax(0, 1fr);
    gap: clamp(28px, 3.4vw, 44px);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 88px;
  }

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

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

  .page-faq .faq-contact {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: center;
  }
}

@media (min-width: 720px) {
  .page-faq .faq-hub__bar {
    border-radius: var(--pill);
  }
}

@media (max-width: 639px) {
  .page-faq .faq-item__a {
    padding-left: 4px;
  }

  .page-faq .faq-item summary {
    gap: 10px;
  }

  .page-faq .faq-hub__jump {
    width: 100%;
    text-align: center;
  }

  .page-faq .faq-top-link {
    margin: 10px 0 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item summary::after,
  .page-faq .rules__list li,
  .page-faq .faq-index__nav a {
    transition: none;
  }

  .page-faq .rules__list li:hover {
    transform: none;
  }
}