.page-faq {
  --faq-r: 22px;
  --faq-r-sm: 14px;
  --faq-gap: clamp(14px, 2.2vw, 24px);
  position: relative;
  overflow-x: clip;
  padding: clamp(16px, 2.6vw, 30px) 0 clamp(64px, 9vw, 120px);
  background:
    radial-gradient(120% 62% at 90% -12%, rgba(122, 108, 255, .16) 0%, transparent 62%),
    radial-gradient(92% 52% at 2% 6%, rgba(41, 224, 200, .1) 0%, transparent 58%);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: clamp(20px, 3.4vw, 46px) 0 clamp(28px, 4.2vw, 54px);
}

.page-faq .faq-hero-title {
  margin: 0 0 clamp(20px, 3vw, 36px);
  max-width: 20ch;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(29px, 5.4vw, 64px);
  line-height: 1.05;
  letter-spacing: -.022em;
  color: var(--silver);
}

.page-faq .faq-hero-body {
  display: grid;
  gap: clamp(22px, 3vw, 44px);
}

@media (min-width: 900px) {
  .page-faq .faq-hero-body {
    grid-template-columns: minmax(0, 1.32fr) minmax(0, .68fr);
    align-items: start;
  }
}

.page-faq .faq-hero-lede {
  margin: 0 0 clamp(20px, 2.6vw, 30px);
  max-width: 60ch;
  color: var(--silver);
  opacity: .82;
  font-size: clamp(15px, 1.4vw, 17.5px);
  line-height: 1.86;
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-brief {
  padding: clamp(20px, 2.6vw, 30px);
  border: 1px solid var(--line);
  border-radius: var(--faq-r);
  background: linear-gradient(160deg, var(--cabin) 0%, rgba(14, 23, 48, .55) 100%);
  box-shadow: var(--shadow-card);
}

.page-faq .faq-brief-title {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--muted);
}

.page-faq .faq-brief-list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-brief-list li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 13px;
  border-bottom: 1px dashed var(--line);
}

.page-faq .faq-brief-num {
  flex: none;
  font-family: var(--font-mono);
  font-size: clamp(24px, 3.2vw, 32px);
  font-weight: 700;
  line-height: 1;
  color: var(--pulse);
}

.page-faq .faq-brief-label {
  color: var(--silver);
  opacity: .72;
  font-size: 14px;
  line-height: 1.5;
}

.page-faq .faq-brief-foot {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 章节骨架 ---------- */
.page-faq .faq-section {
  padding: clamp(34px, 5.2vw, 76px) 0;
}

.page-faq .faq-sec-head {
  max-width: 74ch;
  margin-bottom: clamp(22px, 3vw, 38px);
}

.page-faq .faq-sec-title {
  margin: 8px 0 12px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(23px, 3.3vw, 40px);
  line-height: 1.14;
  letter-spacing: -.016em;
  color: var(--silver);
}

.page-faq .faq-sec-lede {
  margin: 0;
  color: var(--silver);
  opacity: .72;
  font-size: clamp(14.5px, 1.25vw, 16.5px);
  line-height: 1.8;
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 0 0 clamp(20px, 3vw, 34px);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: var(--faq-r);
  object-fit: cover;
}

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 三步路径 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--faq-gap);
  counter-reset: faqstep;
}

@media (min-width: 780px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-faq .faq-step {
  position: relative;
  overflow: hidden;
  padding: clamp(18px, 2.2vw, 26px);
  border: 1px solid var(--line);
  border-radius: var(--faq-r);
  background: var(--cabin);
  transition: border-color .26s var(--ease), transform .26s var(--ease);
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: linear-gradient(180deg, var(--pulse) 0%, rgba(41, 224, 200, 0) 92%);
}

.page-faq .faq-step:hover {
  border-color: var(--line-strong);
  transform: translateY(-3px);
}

.page-faq .faq-step-num {
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--pulse);
}

.page-faq .faq-step h3 {
  margin: 10px 0 8px;
  font-family: var(--font-head);
  font-size: clamp(17px, 1.7vw, 20px);
  font-weight: 700;
  line-height: 1.34;
  color: var(--silver);
}

.page-faq .faq-step p {
  margin: 0 0 14px;
  color: var(--silver);
  opacity: .72;
  font-size: 14.5px;
  line-height: 1.78;
}

.page-faq .faq-step a {
  font-size: 14px;
  color: var(--pulse);
  text-decoration: none;
  border-bottom: 1px solid rgba(41, 224, 200, .34);
  transition: border-color .2s var(--ease);
}

.page-faq .faq-step a:hover,
.page-faq .faq-step a:focus-visible {
  border-bottom-color: var(--pulse);
}

/* ---------- 判断清单 ---------- */
.page-faq .faq-check-grid {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
}

@media (min-width: 940px) {
  .page-faq .faq-check-grid {
    grid-template-columns: minmax(0, .84fr) minmax(0, 1.16fr);
    align-items: start;
  }

  .page-faq .faq-check-grid .faq-figure {
    margin-bottom: 0;
  }
}

.page-faq .faq-checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-checklist li {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: clamp(14px, 1.8vw, 20px);
  border: 1px solid rgba(42, 26, 18, .16);
  border-radius: var(--faq-r-sm);
  background: var(--cream);
  color: var(--inkbrown);
  transition: transform .22s var(--ease), box-shadow .22s var(--ease);
}

.page-faq .faq-checklist li:hover {
  transform: translateX(3px);
  box-shadow: 0 16px 32px -30px rgba(0, 0, 0, .9);
}

.page-faq .faq-tick {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  margin-top: 2px;
  border-radius: 50%;
  background: var(--inkbrown);
  color: var(--pulse);
}

.page-faq .faq-tick svg {
  display: block;
  width: 14px;
  height: 14px;
}

.page-faq .faq-checklist h3 {
  margin: 0 0 6px;
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.42;
  color: var(--inkbrown);
}

.page-faq .faq-checklist p {
  margin: 0;
  font-size: 14px;
  line-height: 1.74;
  color: rgba(42, 26, 18, .78);
}

.page-faq .faq-flag {
  display: inline-block;
  margin-left: 8px;
  padding: 1px 8px;
  border: 1px solid rgba(255, 122, 61, .48);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .06em;
  color: var(--amber);
  vertical-align: middle;
  white-space: nowrap;
}

/* ---------- 问答区 ---------- */
.page-faq .faq-ask-layout {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
}

@media (min-width: 940px) {
  .page-faq .faq-ask-layout {
    grid-template-columns: minmax(0, 262px) minmax(0, 1fr);
    align-items: start;
  }
}

.page-faq .faq-index {
  padding: clamp(16px, 2vw, 22px);
  border: 1px solid var(--line);
  border-radius: var(--faq-r);
  background: rgba(14, 23, 48, .62);
}

@media (min-width: 940px) {
  .page-faq .faq-index {
    position: sticky;
    top: 108px;
  }
}

.page-faq .faq-index-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--muted);
}

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

.page-faq .faq-index a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid transparent;
  border-radius: var(--faq-r-sm);
  color: var(--silver);
  font-size: 14.5px;
  line-height: 1.5;
  text-decoration: none;
  transition: background .22s var(--ease), border-color .22s var(--ease), color .22s var(--ease);
}

.page-faq .faq-index a:hover,
.page-faq .faq-index a:focus-visible {
  border-color: rgba(41, 224, 200, .3);
  background: rgba(41, 224, 200, .09);
  color: var(--pulse);
}

.page-faq .faq-index-count {
  flex: none;
  font-size: 12px;
  color: var(--amber);
}

.page-faq .faq-group {
  margin-bottom: clamp(24px, 3.4vw, 42px);
  scroll-margin-top: 116px;
}

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

.page-faq .faq-group-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-size: clamp(17px, 1.8vw, 21px);
  font-weight: 700;
  color: var(--silver);
}

.page-faq .faq-group-title::before {
  content: "";
  flex: none;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--pulse);
  box-shadow: 0 0 0 4px rgba(41, 224, 200, .16);
}

.page-faq .faq-item {
  margin-bottom: 10px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--faq-r-sm);
  background: var(--cabin);
  transition: border-color .24s var(--ease);
}

.page-faq .faq-item:hover {
  border-color: var(--line-strong);
}

.page-faq .faq-item h4 {
  margin: 0;
}

.page-faq .faq-q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: clamp(15px, 1.9vw, 20px) clamp(16px, 2vw, 22px);
  border: 0;
  background: none;
  color: var(--silver);
  font-family: var(--font-head);
  font-size: clamp(15px, 1.35vw, 16.5px);
  font-weight: 600;
  line-height: 1.56;
  text-align: left;
  cursor: pointer;
  transition: color .22s var(--ease);
}

.page-faq .faq-q:focus-visible {
  outline: 2px solid var(--pulse);
  outline-offset: -2px;
}

.page-faq .faq-q[aria-expanded="true"] {
  color: var(--pulse);
}

.page-faq .faq-q-icon {
  position: relative;
  flex: none;
  width: 20px;
  height: 20px;
  margin-top: 2px;
}

.page-faq .faq-q-icon::before,
.page-faq .faq-q-icon::after {
  content: "";
  position: absolute;
  background: var(--pulse);
  border-radius: 2px;
  transition: transform .28s var(--ease), opacity .28s var(--ease);
}

.page-faq .faq-q-icon::before {
  left: 0;
  top: 9px;
  width: 20px;
  height: 2px;
}

.page-faq .faq-q-icon::after {
  left: 9px;
  top: 0;
  width: 2px;
  height: 20px;
}

.page-faq .faq-q[aria-expanded="true"] .faq-q-icon::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-a {
  padding: 0 clamp(16px, 2vw, 22px) clamp(16px, 2vw, 22px);
  color: var(--silver);
  opacity: .78;
  font-size: 14.5px;
  line-height: 1.82;
}

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

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

/* ---------- 联系卡 ---------- */
.page-faq .faq-contact-card {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
  padding: clamp(22px, 3.4vw, 44px);
  border: 1px solid rgba(255, 122, 61, .28);
  border-radius: var(--faq-r);
  background:
    linear-gradient(150deg, rgba(255, 122, 61, .11) 0%, transparent 48%),
    var(--cabin);
}

@media (min-width: 880px) {
  .page-faq .faq-contact-card {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
  }
}

.page-faq .faq-contact-title {
  margin: 8px 0 12px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(20px, 2.6vw, 30px);
  line-height: 1.2;
  letter-spacing: -.014em;
  color: var(--silver);
}

.page-faq .faq-contact-text {
  margin: 0 0 18px;
  color: var(--silver);
  opacity: .74;
  font-size: 14.5px;
  line-height: 1.82;
}

.page-faq .faq-contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-contact-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 13px 15px;
  border: 1px solid var(--line);
  border-radius: var(--faq-r-sm);
  background: rgba(7, 11, 24, .5);
}

.page-faq .faq-contact-body {
  display: grid;
  gap: 4px;
  min-width: 0;
}

.page-faq .faq-contact-key {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .14em;
  color: var(--muted);
}

.page-faq .faq-contact-val {
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.5;
  color: var(--silver);
  word-break: break-all;
}

.page-faq .faq-contact-val--text {
  font-family: var(--font-body);
  font-size: 14.5px;
  word-break: break-word;
}

.page-faq .faq-contact-addr {
  align-items: flex-start;
}

.page-faq .faq-contact-note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.74;
  color: var(--muted);
}

@media (max-width: 560px) {
  .page-faq .faq-contact-list li {
    flex-direction: column;
    align-items: stretch;
  }

  .page-faq .faq-contact-list .copy-btn {
    align-self: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-step,
  .page-faq .faq-checklist li,
  .page-faq .faq-q-icon::before,
  .page-faq .faq-q-icon::after,
  .page-faq .faq-index a,
  .page-faq .faq-item {
    transition: none;
  }

  .page-faq .faq-step:hover,
  .page-faq .faq-checklist li:hover {
    transform: none;
  }
}