.page-faq {
  --faq-r: 26px;
  --faq-r-sm: 16px;
  --faq-edge: 1px solid var(--line);
  position: relative;
  color: var(--fog);
  padding-bottom: clamp(40px, 7vw, 88px);
}

.page-faq .faq-shell {
  position: relative;
  z-index: 1;
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumbs {
  padding-top: clamp(14px, 3vw, 26px);
}

.page-faq .breadcrumbs ul {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .breadcrumbs li {
  font-size: 13px;
  color: var(--mute);
}

.page-faq .breadcrumbs li + li::before {
  content: "/";
  margin-right: 8px;
  color: rgba(169, 187, 214, 0.45);
}

.page-faq .breadcrumbs a {
  color: var(--mute);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

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

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  padding: clamp(18px, 4vw, 34px) 0 clamp(24px, 5vw, 44px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: -34px;
  right: 0;
  width: min(560px, 94%);
  height: clamp(190px, 34vw, 320px);
  background:
    radial-gradient(120% 130% at 82% 0%, rgba(53, 230, 208, 0.2), transparent 62%),
    linear-gradient(135deg, rgba(139, 92, 255, 0.16), rgba(255, 122, 47, 0.1) 72%, transparent);
  clip-path: polygon(16% 0, 100% 0, 100% 100%, 0 76%);
  pointer-events: none;
}

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

.page-faq .faq-hero h1 {
  margin: 0 0 16px;
  max-width: 16em;
  font-size: clamp(29px, 6.4vw, 60px);
  line-height: 1.07;
  font-weight: 900;
  letter-spacing: -0.02em;
}

.page-faq .faq-lede {
  margin: 0;
  max-width: 64ch;
  font-size: clamp(15px, 1.8vw, 17.5px);
  line-height: 1.72;
  color: var(--fog);
  opacity: 0.92;
}

.page-faq .faq-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mute);
}

.page-faq .faq-hero-meta li {
  display: flex;
  align-items: center;
  gap: 7px;
}

.page-faq .faq-hero-meta li::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px rgba(53, 230, 208, 0.7);
}

.page-faq .faq-hero-meta li:nth-child(2)::before {
  background: var(--violet);
  box-shadow: 0 0 8px rgba(139, 92, 255, 0.7);
}

.page-faq .faq-hero-meta li:nth-child(3)::before {
  background: var(--orange);
  box-shadow: 0 0 8px rgba(255, 122, 47, 0.7);
}

/* ---------- 快速入口 ---------- */
.page-faq .faq-quick {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  padding: clamp(16px, 3.5vw, 30px) 0 clamp(20px, 4vw, 34px);
}

.page-faq .quick-card {
  --accent: var(--cyan);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 44px;
  padding: clamp(18px, 3vw, 24px);
  border: var(--faq-edge);
  border-radius: 32px 32px 32px 12px;
  background: linear-gradient(158deg, rgba(15, 29, 51, 0.96), rgba(10, 20, 38, 0.88));
  color: var(--fog);
  text-decoration: none;
  overflow: hidden;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-faq .quick-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: linear-gradient(180deg, var(--accent), transparent 78%);
  opacity: 0.85;
}

.page-faq .quick-card:nth-child(1) { --accent: var(--cyan); }
.page-faq .quick-card:nth-child(2) { --accent: var(--green); border-radius: 12px 32px 32px 32px; }
.page-faq .quick-card:nth-child(3) { --accent: var(--violet); border-radius: 32px 12px 32px 32px; }
.page-faq .quick-card:nth-child(4) { --accent: var(--orange); border-radius: 32px 32px 12px 32px; }

.page-faq .quick-card:hover,
.page-faq .quick-card:focus-visible {
  transform: translateY(-3px);
  border-color: rgba(53, 230, 208, 0.5);
  box-shadow: 0 16px 36px -20px rgba(53, 230, 208, 0.55);
  outline: none;
}

.page-faq .quick-card:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-faq .quick-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--accent);
}

.page-faq .quick-title {
  font-size: clamp(17px, 2.2vw, 20px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.page-faq .quick-desc {
  font-size: 14px;
  line-height: 1.62;
  color: var(--mute);
}

.page-faq .quick-arrow {
  margin-top: auto;
  padding-top: 6px;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--accent);
}

/* ---------- 主题跳转条 ---------- */
.page-faq .faq-jump {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 10px;
  margin: 0 0 clamp(24px, 4vw, 40px);
  border: var(--faq-edge);
  border-radius: var(--faq-r-sm);
  background: rgba(10, 20, 38, 0.75);
  scroll-snap-type: x proximity;
  scrollbar-width: thin;
}

.page-faq .jump-link {
  flex: 0 0 auto;
  scroll-snap-align: start;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 40px;
  padding: 8px 14px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  background: rgba(23, 41, 74, 0.65);
  color: var(--mute);
  font-size: 13.5px;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .jump-link:hover,
.page-faq .jump-link:focus-visible {
  color: var(--fog);
  background: rgba(53, 230, 208, 0.14);
  border-color: rgba(53, 230, 208, 0.4);
  outline: none;
}

.page-faq .idx-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

/* ---------- 规则说明库 ---------- */
.page-faq .faq-rules {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 40px);
  padding: clamp(26px, 5vw, 46px) 0;
  border-top: 1px solid var(--line);
}

.page-faq .rules-text h2 {
  margin: 6px 0 14px;
  font-size: clamp(23px, 4.2vw, 38px);
  line-height: 1.16;
  font-weight: 900;
  letter-spacing: -0.018em;
}

.page-faq .rules-text p {
  margin: 0 0 14px;
  max-width: 60ch;
  color: var(--mute);
  font-size: 15px;
  line-height: 1.74;
}

.page-faq .rules-text a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 230, 208, 0.4);
}

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

.page-faq .rules-map {
  display: block;
  box-sizing: border-box;
  width: 100%;
  max-width: 360px;
  height: auto;
  margin: 2px 0 16px;
  padding: 12px;
  border: var(--faq-edge);
  border-radius: var(--faq-r-sm);
  background: rgba(10, 20, 38, 0.7);
}

.page-faq .rules-path {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  padding: 11px 16px;
  list-style: none;
  border: 1px solid rgba(53, 230, 208, 0.24);
  border-radius: var(--radius-pill);
  background: rgba(53, 230, 208, 0.08);
  font-size: 13.5px;
  color: var(--fog);
}

.page-faq .rules-path li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-faq .rules-path li + li::before {
  content: "›";
  color: var(--cyan);
}

.page-faq .rules-cats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
}

.page-faq .rules-cats li {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 13px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: rgba(23, 41, 74, 0.7);
  color: var(--fog);
  font-size: 13px;
}

.page-faq .rules-cats li span {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan);
}

.page-faq .rules-figure {
  margin: 0;
  overflow: hidden;
  border: var(--faq-edge);
  border-radius: var(--faq-r);
  background: linear-gradient(160deg, rgba(15, 29, 51, 0.9), rgba(10, 20, 38, 0.8));
}

.page-faq .rules-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.page-faq .rules-figure figcaption {
  padding: 12px 16px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--mute);
}

/* ---------- 问答区 ---------- */
.page-faq .faq-qa {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3.5vw, 36px);
  padding: clamp(24px, 4.5vw, 44px) 0;
  border-top: 1px solid var(--line);
}

.page-faq .qa-index-title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--mute);
}

.page-faq .qa-index ul {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .qa-index a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 40px;
  padding: 9px 13px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: rgba(15, 29, 51, 0.8);
  color: var(--mute);
  font-size: 13.5px;
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .qa-index a:hover,
.page-faq .qa-index a:focus-visible {
  color: var(--fog);
  border-color: rgba(53, 230, 208, 0.5);
  outline: none;
}

.page-faq .qa-groups {
  min-width: 0;
}

.page-faq .qa-h2 {
  margin: 0 0 20px;
  font-size: clamp(23px, 3.6vw, 33px);
  line-height: 1.16;
  font-weight: 900;
  letter-spacing: -0.018em;
}

.page-faq .qa-group {
  margin-bottom: clamp(22px, 4vw, 34px);
}

.page-faq .qa-group:last-child {
  margin-bottom: 0;
}

.page-faq .qa-group h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 12px;
  font-size: clamp(17px, 2.4vw, 21px);
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-faq .qa-group h3::before {
  content: "";
  flex: none;
  width: 16px;
  height: 3px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--violet));
}

.page-faq .qa-item {
  margin-bottom: 10px;
  overflow: hidden;
  border: var(--faq-edge);
  border-radius: var(--faq-r-sm);
  background: linear-gradient(170deg, rgba(15, 29, 51, 0.94), rgba(10, 20, 38, 0.86));
  transition: border-color var(--dur) var(--ease);
}

.page-faq .qa-item[open] {
  border-color: rgba(53, 230, 208, 0.34);
}

.page-faq .qa-item summary {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 44px;
  padding: 15px 16px;
  list-style: none;
  cursor: pointer;
}

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

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

.page-faq .qa-num {
  flex: none;
  padding: 3px 9px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-faq .qa-q {
  flex: 1 1 auto;
  font-size: clamp(14.5px, 1.7vw, 16.5px);
  font-weight: 700;
  line-height: 1.5;
}

.page-faq .qa-item summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--mute);
  transition: transform var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .qa-item[open] summary::after {
  content: "+";
  transform: rotate(45deg);
  color: var(--cyan);
}

.page-faq .qa-a {
  padding: 0 16px 16px;
  color: var(--mute);
  font-size: 14.5px;
  line-height: 1.76;
}

.page-faq .qa-a p {
  margin: 0 0 10px;
}

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

.page-faq .qa-a a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 230, 208, 0.4);
}

/* ---------- 联系支持 ---------- */
.page-faq .faq-contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3.5vw, 36px);
  margin-top: clamp(24px, 4.5vw, 44px);
  padding: clamp(22px, 4vw, 40px);
  border: 1px solid rgba(139, 92, 255, 0.28);
  border-radius: var(--faq-r);
  background:
    radial-gradient(90% 120% at 100% 0%, rgba(255, 122, 47, 0.16), transparent 62%),
    radial-gradient(80% 120% at 0% 100%, rgba(139, 92, 255, 0.18), transparent 60%),
    linear-gradient(150deg, rgba(15, 29, 51, 0.95), rgba(10, 20, 38, 0.92));
}

.page-faq .contact-copy {
  min-width: 0;
}

.page-faq .contact-copy h2 {
  margin: 4px 0 14px;
  font-size: clamp(22px, 3.8vw, 34px);
  line-height: 1.18;
  font-weight: 900;
  letter-spacing: -0.018em;
}

.page-faq .contact-copy > p {
  margin: 0;
  max-width: 56ch;
  color: var(--mute);
  font-size: 15px;
  line-height: 1.74;
}

.page-faq .contact-list {
  display: grid;
  gap: 10px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .contact-list li {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding-bottom: 10px;
  border-bottom: 1px dashed rgba(23, 41, 74, 0.9);
  font-size: 14px;
}

.page-faq .contact-key {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--mute);
}

.page-faq .contact-value {
  color: var(--fog);
  font-weight: 500;
  word-break: break-word;
}

.page-faq .contact-detail {
  margin-top: 14px;
  background: rgba(5, 11, 24, 0.55);
}

.page-faq .contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.page-faq .contact-figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(23, 41, 74, 0.9);
  border-radius: var(--faq-r-sm);
  background: rgba(5, 11, 24, 0.6);
}

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

.page-faq .contact-figure figcaption {
  padding: 11px 15px;
  border-top: 1px solid rgba(23, 41, 74, 0.9);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--mute);
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-quick {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .page-faq .faq-jump {
    flex-wrap: wrap;
    overflow-x: visible;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-quick {
    grid-template-columns: 1.18fr 1fr 1fr 0.92fr;
  }

  .page-faq .quick-card { border-radius: 44px 44px 44px 14px; }
  .page-faq .quick-card:nth-child(2) { border-radius: 14px 44px 44px 44px; }
  .page-faq .quick-card:nth-child(3) { border-radius: 44px 14px 44px 44px; }
  .page-faq .quick-card:nth-child(4) { border-radius: 44px 44px 14px 44px; }

  .page-faq .faq-rules {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
  }

  .page-faq .faq-contact {
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-qa {
    grid-template-columns: 188px minmax(0, 1fr);
    gap: clamp(24px, 4vw, 52px);
  }

  .page-faq .qa-index {
    position: sticky;
    top: calc(var(--header-h) + 20px);
    align-self: start;
  }

  .page-faq .qa-index ul {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 6px;
  }

  .page-faq .qa-index a {
    width: 100%;
    border-radius: var(--faq-r-sm);
    justify-content: flex-start;
    box-sizing: border-box;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .quick-card,
  .page-faq .qa-item summary::after,
  .page-faq .jump-link,
  .page-faq .qa-item {
    transition: none;
  }

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