.page-faq {
  --faq-paper: #F5EFE3;
  --faq-paper-2: #E7DDCA;
  --faq-brown: #2A1F1A;
  --faq-brown-soft: #4A3B33;
  --faq-gold: #F2C14E;
  --faq-orange: #FF6B00;
  --faq-orange-2: #FF9440;
  --faq-jade: #12B886;
  --faq-mist: #8FA3BF;
  --faq-gap: clamp(18px, 3vw, 34px);
  display: block;
  padding-bottom: clamp(48px, 7vw, 96px);
}

.page-faq img {
  max-width: 100%;
  height: auto;
  display: block;
}

.page-faq .crumbs {
  margin-top: 18px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  margin-top: 14px;
  padding: clamp(22px, 4vw, 44px) 0 clamp(30px, 5vw, 62px);
  background:
    radial-gradient(120% 100% at 92% 0%, rgba(255, 107, 0, 0.22), transparent 58%),
    radial-gradient(80% 70% at 0% 100%, rgba(18, 184, 134, 0.12), transparent 62%);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -140px;
  top: -140px;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  border: 1px solid rgba(242, 193, 78, 0.3);
  box-shadow:
    0 0 0 36px rgba(242, 193, 78, 0.06),
    0 0 0 72px rgba(255, 107, 0, 0.05);
  pointer-events: none;
}

.page-faq .faq-hero-inner {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  align-items: center;
}

.page-faq .faq-hero-copy .lede {
  max-width: 36em;
  margin-top: 14px;
}

.page-faq .faq-jump {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
  margin: 22px 0 0;
  padding: 0;
}

.page-faq .faq-jump a {
  display: inline-block;
  padding: 7px 14px;
  border: 1px solid rgba(143, 163, 191, 0.4);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--text);
  text-decoration: none;
  transition: border-color 0.25s ease, color 0.25s ease, transform 0.2s ease;
}

.page-faq .faq-jump a:hover,
.page-faq .faq-jump a:focus-visible {
  border-color: var(--faq-orange);
  color: var(--faq-orange-2);
  transform: translateY(-2px);
}

.page-faq .faq-hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 30px;
  margin: 26px 0 0;
  padding-top: 20px;
  border-top: 1px solid rgba(143, 163, 191, 0.22);
}

.page-faq .faq-stat {
  min-width: 108px;
}

.page-faq .faq-stat-label {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--faq-mist);
}

.page-faq .faq-stat-num {
  margin: 4px 0 0;
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--faq-orange);
  text-shadow: 0 0 18px rgba(255, 107, 0, 0.35);
}

.page-faq .faq-hero-figure {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

/* ---------- 通用节 ---------- */
.page-faq .faq-section {
  padding: clamp(40px, 6vw, 78px) 0 0;
}

.page-faq .faq-sec-head {
  max-width: 44em;
  margin-bottom: clamp(22px, 3vw, 34px);
}

.page-faq .faq-sec-lede {
  margin-top: 12px;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--faq-mist);
}

/* ---------- 索引 + 问答 ---------- */
.page-faq .faq-board {
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .faq-index {
  padding: 18px;
  border: 1px solid rgba(143, 163, 191, 0.28);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(19, 41, 75, 0.92), rgba(11, 30, 58, 0.92));
}

.page-faq .faq-index-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--faq-gold);
}

.page-faq .faq-index-range {
  color: var(--faq-mist);
}

.page-faq .faq-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-index-list li {
  flex: 0 0 auto;
}

.page-faq .faq-index-list a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  color: var(--text);
  font-size: 14px;
  line-height: 1.4;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.25s ease, border-color 0.25s ease, color 0.25s ease;
}

.page-faq .idx-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--faq-gold);
  transition: color 0.25s ease;
}

.page-faq .faq-index-list a::before {
  content: "";
  width: 6px;
  height: 6px;
  flex: none;
  border-radius: 50%;
  background: rgba(242, 193, 78, 0.5);
  transition: transform 0.25s ease, background 0.25s ease;
}

.page-faq .faq-index-list a:hover,
.page-faq .faq-index-list a:focus-visible {
  background: rgba(255, 107, 0, 0.12);
  border-color: rgba(255, 107, 0, 0.45);
  outline: none;
}

.page-faq .faq-index-list a:hover .idx-num,
.page-faq .faq-index-list a:focus-visible .idx-num {
  color: var(--faq-orange);
}

.page-faq .faq-index-list a:hover::before,
.page-faq .faq-index-list a:focus-visible::before {
  background: var(--faq-orange);
  transform: scale(1.5);
}

.page-faq .faq-index-tip {
  margin: 14px 0 0;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--faq-mist);
}

.page-faq .faq-qa {
  display: grid;
  gap: 12px;
}

.page-faq .qa-group-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 24px 0 2px;
  font-size: 0.95rem;
  letter-spacing: 0.1em;
  color: var(--faq-mist);
}

.page-faq .qa-group-title:first-child {
  margin-top: 0;
}

.page-faq .qa-group-mark {
  display: inline-grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 8px;
  border: 1px solid rgba(242, 193, 78, 0.55);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--faq-gold);
}

.page-faq .qa {
  background: var(--faq-paper);
  border: 1px solid rgba(42, 31, 26, 0.1);
  border-radius: var(--radius);
  overflow: hidden;
  scroll-margin-top: calc(var(--hdr-h) + 26px);
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.page-faq .qa[open] {
  border-color: rgba(255, 107, 0, 0.55);
  box-shadow: 0 14px 34px rgba(3, 10, 22, 0.4);
}

.page-faq .qa > summary {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: baseline;
  gap: 14px;
  padding: 17px 20px;
  cursor: pointer;
  list-style: none;
  color: var(--faq-brown);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.6;
}

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

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

.page-faq .qa-idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--faq-orange);
}

.page-faq .qa-mark {
  position: relative;
  align-self: center;
  width: 22px;
  height: 22px;
  flex: none;
  border: 1px solid rgba(255, 107, 0, 0.5);
  border-radius: 50%;
  transition: background 0.25s ease, border-color 0.25s ease;
}

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

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

.page-faq .qa-mark::after {
  width: 2px;
  height: 10px;
  transition: transform 0.25s ease;
}

.page-faq .qa[open] .qa-mark {
  background: rgba(255, 107, 0, 0.12);
}

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

.page-faq .qa-body {
  padding: 0 20px 20px;
  color: var(--faq-brown-soft);
  font-size: 16px;
  line-height: 1.85;
}

.page-faq .qa-body p {
  max-width: 36em;
  margin: 0;
}

.page-faq .qa-body p + p {
  margin-top: 10px;
}

/* ---------- 三步自查 ---------- */
.page-faq .faq-section--check {
  position: relative;
}

.page-faq .faq-check-grid {
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .check-list {
  list-style: none;
  margin: 0;
  padding: 0 0 0 4px;
  display: grid;
  gap: 4px;
}

.page-faq .check-step {
  position: relative;
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 14px;
  padding: 18px 18px 18px 0;
}

.page-faq .check-step::before {
  content: "";
  position: absolute;
  left: 25px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, rgba(255, 107, 0, 0.6), rgba(255, 107, 0, 0.08));
}

.page-faq .check-step:first-child::before {
  top: 24px;
}

.page-faq .check-step:last-child::before {
  bottom: calc(100% - 42px);
}

.page-faq .check-num {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 1px solid rgba(255, 107, 0, 0.6);
  background: var(--ink-900, #07162C);
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.1em;
  color: var(--faq-orange);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.page-faq .check-step:hover .check-num {
  transform: scale(1.12);
  border-color: var(--faq-gold);
  box-shadow: 0 0 22px rgba(255, 107, 0, 0.4);
}

.page-faq .check-main {
  padding-top: 4px;
}

.page-faq .check-title {
  margin: 0 0 6px;
  font-size: 1.15rem;
  color: #FFFFFF;
  letter-spacing: 0.01em;
}

.page-faq .check-text,
.page-faq .check-next {
  margin: 0;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
}

.page-faq .check-expect {
  margin: 10px 0 0;
  max-width: 36em;
  padding: 9px 14px;
  border-left: 2px solid var(--faq-jade);
  border-radius: 0 10px 10px 0;
  background: rgba(18, 184, 134, 0.1);
  font-size: 14px;
  line-height: 1.75;
  color: #B7F0DA;
}

.page-faq .check-next {
  margin-top: 10px;
  color: var(--faq-mist);
  font-size: 14px;
}

.page-faq .faq-check-figure {
  border-radius: var(--radius);
  overflow: hidden;
  align-self: start;
}

/* ---------- 变动规则 ---------- */
.page-faq .rule-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .rule-item {
  display: grid;
  gap: 8px;
  padding: 22px;
  border: 1px solid rgba(143, 163, 191, 0.24);
  border-radius: var(--radius);
  background: var(--ink-700, #13294B);
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.page-faq .rule-item:hover {
  border-color: rgba(255, 107, 0, 0.5);
  transform: translateY(-3px);
}

.page-faq .rule-num {
  width: fit-content;
  padding: 3px 9px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--faq-brown);
  background: var(--faq-gold);
}

.page-faq .rule-title {
  margin: 0;
  font-size: 1.15rem;
  color: #FFFFFF;
}

.page-faq .rule-item p {
  margin: 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text);
}

.page-faq .faq-more-link {
  margin: 22px 0 0;
  font-size: 15px;
  color: var(--faq-mist);
}

.page-faq .faq-more-link a {
  color: var(--faq-orange-2);
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* ---------- 反馈节奏 ---------- */
.page-faq .faq-section--feedback {
  position: relative;
}

.page-faq .fb-flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  counter-reset: fb;
}

.page-faq .fb-step {
  position: relative;
  padding: 20px 22px 20px 22px;
  border-radius: var(--radius);
  border: 1px solid rgba(242, 193, 78, 0.28);
  background:
    linear-gradient(135deg, rgba(255, 107, 0, 0.08), rgba(11, 30, 58, 0.4));
}

.page-faq .fb-step-num {
  display: inline-block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--faq-orange);
}

.page-faq .fb-step h3 {
  margin: 0 0 6px;
  font-size: 1.08rem;
  color: #FFFFFF;
}

.page-faq .fb-step p {
  margin: 0;
  max-width: 38em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
}

.page-faq .fb-contact {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 24px;
  padding: 20px 22px;
  border-radius: var(--radius);
  background: var(--faq-paper);
  color: var(--faq-brown);
}

.page-faq .fb-contact-line {
  margin: 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.8;
}

.page-faq .fb-contact-line a {
  color: #B54A00;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 术语表 ---------- */
.page-faq .term-grid {
  display: grid;
  gap: 16px;
}

.page-faq .term-card {
  min-height: 200px;
  perspective: 1000px;
}

.page-faq .term-card:focus {
  outline: none;
}

.page-faq .term-inner {
  position: relative;
  height: 100%;
  min-height: 200px;
  transform-style: preserve-3d;
  transition: transform 0.65s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.page-faq .term-card:hover .term-inner,
.page-faq .term-card:focus-visible .term-inner,
.page-faq .term-card:focus-within .term-inner {
  transform: rotateY(180deg);
}

.page-faq .term-face,
.page-faq .term-back {
  position: absolute;
  inset: 0;
  padding: 22px;
  border-radius: var(--radius);
  backface-visibility: hidden;
  border: 1px solid rgba(242, 193, 78, 0.6);
}

.page-faq .term-face {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 8px;
  background: var(--ink-700, #13294B);
}

.page-faq .term-idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--faq-gold);
}

.page-faq .term-name {
  margin: 0;
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: #FFFFFF;
}

.page-faq .term-hint {
  margin: 0;
  font-size: 13px;
  color: var(--faq-mist);
}

.page-faq .term-back {
  transform: rotateY(180deg);
  background: var(--faq-paper);
  display: flex;
  align-items: center;
}

.page-faq .term-back p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--faq-brown);
}

.page-faq .faq-more-index {
  margin-top: 34px;
  padding-top: 22px;
  border-top: 1px dashed rgba(143, 163, 191, 0.35);
}

.page-faq .faq-more-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--faq-gold);
}

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

.page-faq .faq-more-index a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 0;
  min-height: 44px;
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid rgba(143, 163, 191, 0.25);
  transition: color 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
}

.page-faq .faq-more-index a::before {
  content: "→";
  font-family: var(--font-mono);
  color: var(--faq-orange);
}

.page-faq .faq-more-index a:hover,
.page-faq .faq-more-index a:focus-visible {
  color: var(--faq-orange-2);
  border-color: var(--faq-orange);
  transform: translateX(4px);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-index-list {
    flex-wrap: wrap;
    overflow: visible;
  }

  .page-faq .faq-index-list li {
    flex: 1 1 calc(50% - 8px);
  }

  .page-faq .faq-index-list a {
    white-space: normal;
  }

  .page-faq .rule-list {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-faq .fb-flow {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .page-faq .faq-more-index ul {
    grid-template-columns: repeat(2, 1fr);
    gap: 6px 26px;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-hero-inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

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

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--hdr-h) + 24px);
  }

  .page-faq .faq-index-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .page-faq .faq-index-list li {
    flex: none;
  }

  .page-faq .faq-check-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }

  .page-faq .fb-flow {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 520px) {
  .page-faq .faq-hero::after {
    right: -200px;
    top: -180px;
  }

  .page-faq .check-step {
    grid-template-columns: 44px 1fr;
    gap: 12px;
    padding-right: 6px;
  }

  .page-faq .check-step::before {
    left: 21px;
  }

  .page-faq .check-num {
    width: 44px;
    height: 44px;
    font-size: 13px;
  }

  .page-faq .qa > summary {
    padding: 15px 16px;
    gap: 10px;
  }

  .page-faq .qa-body {
    padding: 0 16px 18px;
  }
}

@media (max-width: 760px) {
  .page-faq .term-card {
    perspective: none;
    min-height: 0;
  }

  .page-faq .term-inner {
    transform: none !important;
    min-height: 0;
    display: grid;
    gap: 10px;
  }

  .page-faq .term-face,
  .page-faq .term-back {
    position: static;
    transform: none;
    backface-visibility: visible;
  }

  .page-faq .term-face {
    border-radius: var(--radius) var(--radius) 8px 8px;
  }

  .page-faq .term-back {
    border-radius: 8px 8px var(--radius) var(--radius);
    border-top: 1px dashed rgba(42, 31, 26, 0.2);
  }

  .page-faq .term-hint {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .term-inner,
  .page-faq .qa-mark::after,
  .page-faq .check-num,
  .page-faq .rule-item,
  .page-faq .faq-more-index a,
  .page-faq .faq-jump a {
    transition: none;
  }

  .page-faq .term-card:hover .term-inner,
  .page-faq .term-card:focus-within .term-inner {
    transform: none;
  }
}