.page-faq {
  --faq-card-bg: rgba(10, 53, 64, 0.55);
  --faq-soft-line: rgba(166, 203, 201, 0.22);
}

.page-faq .breadcrumbs {
  margin-bottom: clamp(14px, 2.4vw, 24px);
  font-size: 13px;
  color: var(--mist);
}

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

.page-faq .breadcrumbs a:hover,
.page-faq .breadcrumbs a:focus-visible {
  text-decoration: underline;
}

/* ---------- Hero ---------- */
.page-faq .faq-hero {
  padding-bottom: clamp(28px, 5vw, 56px);
}

.page-faq .hero-frame {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius-cut);
  padding: clamp(22px, 4vw, 48px);
  background:
    radial-gradient(120% 140% at 88% 0%, rgba(47, 243, 210, 0.14), transparent 58%),
    linear-gradient(158deg, rgba(10, 53, 64, 0.92), rgba(4, 24, 38, 0.72));
  overflow: hidden;
}

.page-faq .hero-frame::before,
.page-faq .hero-frame::after {
  content: "";
  position: absolute;
  width: 58px;
  height: 58px;
  border: 1px solid var(--mint);
  opacity: 0.6;
  pointer-events: none;
}

.page-faq .hero-frame::before {
  top: 14px;
  left: 14px;
  border-right: 0;
  border-bottom: 0;
}

.page-faq .hero-frame::after {
  right: 14px;
  bottom: 14px;
  border-left: 0;
  border-top: 0;
}

.page-faq .hero-grid {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
}

.page-faq .hero-copy .display-title {
  margin: 10px 0 16px;
  line-height: 1.04;
  letter-spacing: -0.01em;
}

.page-faq .hero-copy .lede {
  max-width: 46ch;
  color: var(--mist);
}

.page-faq .jump-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: clamp(18px, 3vw, 26px);
}

.page-faq .jump-chip {
  display: inline-block;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 13px;
  color: var(--foam);
  text-decoration: none;
  transition: border-color 220ms var(--ease), color 220ms var(--ease), background 220ms var(--ease);
}

.page-faq .jump-chip:hover,
.page-faq .jump-chip:focus-visible {
  border-color: var(--mint);
  color: var(--deep);
  background: var(--mint);
}

.page-faq .hero-note {
  border-left: 2px solid var(--amber);
  padding-left: 16px;
  color: var(--mist);
  font-size: 14px;
  line-height: 1.7;
}

.page-faq .note-label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--amber);
}

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

.page-faq .note-figure {
  font-family: var(--font-mono);
  color: var(--ice);
  font-size: 13px;
}

.page-faq .note-figure .numeral {
  font-size: 22px;
  color: var(--amber);
  margin-right: 4px;
}

/* ---------- 新手入口 ---------- */
.page-faq .start-section {
  border-radius: var(--radius-cut);
  margin-top: clamp(28px, 4vw, 48px);
}

.page-faq .start-head {
  display: grid;
  gap: clamp(14px, 2.5vw, 28px);
}

.page-faq .start-head .display-title {
  margin: 8px 0 0;
  font-size: clamp(26px, 5vw, 44px);
  line-height: 1.1;
}

.page-faq .start-intro {
  color: var(--mist);
  font-size: 15px;
  line-height: 1.8;
}

.page-faq .start-figure {
  margin: clamp(20px, 3vw, 30px) 0 clamp(18px, 3vw, 28px);
  border-radius: var(--radius-cut);
  overflow: hidden;
  border: 1px solid var(--faq-soft-line);
}

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

.page-faq .start-figure figcaption {
  padding: 10px 14px;
  font-size: 12px;
  color: var(--mist);
  background: rgba(4, 24, 38, 0.6);
}

.page-faq .start-rail {
  display: flex;
  gap: clamp(12px, 2vw, 20px);
  margin: 0;
  padding: 4px 2px 18px;
  list-style: none;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--line) transparent;
}

.page-faq .start-card {
  flex: 0 0 clamp(228px, 74vw, 292px);
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 208px;
  padding: 20px 18px;
  background: var(--faq-card-bg);
  border: 1px solid var(--line);
  border-radius: 4px var(--radius-cut) 4px var(--radius-cut);
  transition: border-color 260ms var(--ease), transform 260ms var(--ease), background 260ms var(--ease);
}

.page-faq .start-card:hover,
.page-faq .start-card:focus-within {
  border-color: var(--mint);
  background: rgba(10, 53, 64, 0.85);
  transform: translateY(-3px);
}

.page-faq .start-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--amber);
}

.page-faq .start-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--ice);
}

.page-faq .start-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .start-link {
  margin-top: auto;
  padding-top: 10px;
  font-size: 13px;
  color: var(--mint);
  text-decoration: none;
  border-top: 1px solid var(--faq-soft-line);
}

.page-faq .start-link::after {
  content: " →";
}

.page-faq .start-link:hover,
.page-faq .start-link:focus-visible {
  color: var(--amber);
}

/* ---------- 导航第二屏 ---------- */
.page-faq .nav-screen {
  padding-top: clamp(36px, 6vw, 68px);
  padding-bottom: clamp(36px, 6vw, 68px);
}

.page-faq .nav-grid {
  display: grid;
  gap: clamp(22px, 4vw, 44px);
}

.page-faq .nav-copy .display-title {
  margin: 8px 0 16px;
  font-size: clamp(26px, 5vw, 44px);
  line-height: 1.08;
}

.page-faq .nav-copy .prose {
  color: var(--mist);
  font-size: 15px;
  line-height: 1.85;
  margin: 0 0 14px;
  max-width: 58ch;
}

.page-faq .nav-steps {
  list-style: none;
  margin: clamp(18px, 3vw, 28px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .nav-steps li {
  display: flex;
  gap: 14px;
  align-items: baseline;
  padding: 12px 0;
  border-top: 1px solid var(--faq-soft-line);
  font-size: 15px;
  line-height: 1.7;
  color: var(--foam);
}

.page-faq .step-idx {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--orange);
  letter-spacing: 0.14em;
  flex: none;
}

.page-faq .nav-figure {
  margin: 0;
  border: 1px solid var(--faq-soft-line);
  border-radius: var(--radius-cut) 4px var(--radius-cut) 4px;
  overflow: hidden;
  background: rgba(24, 28, 69, 0.5);
}

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

.page-faq .nav-figure figcaption {
  padding: 10px 14px;
  font-size: 12px;
  color: var(--mist);
  background: rgba(4, 24, 38, 0.55);
}

/* ---------- 问答 ---------- */
.page-faq .question-section {
  border-radius: var(--radius-cut);
  margin-top: clamp(8px, 2vw, 16px);
}

.page-faq .question-head .display-title {
  margin: 8px 0 14px;
  font-size: clamp(26px, 5vw, 44px);
  line-height: 1.1;
}

.page-faq .question-head .prose {
  color: var(--mist);
  font-size: 15px;
  line-height: 1.8;
  max-width: 62ch;
  margin: 0;
}

.page-faq .faq-tabs {
  display: grid;
  gap: clamp(18px, 3vw, 36px);
  margin-top: clamp(22px, 4vw, 36px);
}

.page-faq .faq-tabs .tablist {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
  scrollbar-width: thin;
}

.page-faq .faq-tabs .tab {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: var(--foam);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.2;
  cursor: pointer;
  white-space: nowrap;
  transition: background 220ms var(--ease), color 220ms var(--ease), border-color 220ms var(--ease);
}

.page-faq .faq-tabs .tab::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--mint);
}

.page-faq .faq-tabs .tab--access::before {
  background: var(--amber);
}

.page-faq .faq-tabs .tab:hover,
.page-faq .faq-tabs .tab:focus-visible {
  border-color: var(--mint);
}

.page-faq .faq-tabs .tab[aria-selected="true"] {
  background: var(--foam);
  border-color: var(--foam);
  color: var(--deep);
  font-weight: 700;
}

.page-faq .tabpanel + .tabpanel {
  margin-top: 24px;
}

.page-faq .tabpanel[hidden] {
  display: none;
}

.page-faq .accordion-item {
  border: 1px solid var(--line);
  border-radius: 3px 14px 3px 14px;
  background: rgba(4, 24, 38, 0.45);
  margin-bottom: 10px;
  overflow: hidden;
  transition: border-color 220ms var(--ease), background 220ms var(--ease);
}

.page-faq .accordion-item:has(.accordion-trigger[aria-expanded="true"]) {
  border-color: rgba(47, 243, 210, 0.55);
  background: rgba(10, 53, 64, 0.6);
}

.page-faq .faq-q {
  margin: 0;
  font-size: inherit;
  font-weight: 400;
}

.page-faq .faq-q .accordion-trigger {
  width: 100%;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  background: transparent;
  border: 0;
  color: var(--ice);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  text-align: left;
  cursor: pointer;
}

.page-faq .faq-q .accordion-trigger:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: -3px;
}

.page-faq .faq-sign {
  flex: none;
  width: 22px;
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1;
  color: var(--mint);
  transition: transform 240ms var(--ease), border-color 240ms var(--ease);
}

.page-faq .accordion-trigger[aria-expanded="true"] .faq-sign {
  transform: rotate(45deg);
  border-color: var(--mint);
}

.page-faq .accordion-panel {
  padding: 0 18px 16px;
  border-left: 2px solid rgba(47, 243, 210, 0.6);
  margin-left: 18px;
}

.page-faq .accordion-panel p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 筛选小抄 ---------- */
.page-faq .cheat-section {
  border-radius: var(--radius-cut);
  margin-top: clamp(28px, 5vw, 48px);
}

.page-faq .cheat-head .display-title {
  margin: 8px 0 0;
  font-size: clamp(26px, 5vw, 44px);
  line-height: 1.1;
}

.page-faq .cheat-scale {
  margin: clamp(18px, 3vw, 30px) 0 clamp(10px, 2vw, 18px);
}

.page-faq .cheat-scale svg {
  display: block;
  width: 100%;
  height: auto;
}

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

.page-faq .cheat-step {
  padding: 18px;
  border: 1px solid rgba(242, 250, 248, 0.2);
  border-radius: 3px 16px 3px 16px;
  background: rgba(4, 24, 38, 0.38);
}

.page-faq .cheat-idx {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--amber);
}

.page-faq .cheat-step h3 {
  margin: 8px 0 6px;
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 700;
  color: var(--ice);
}

.page-faq .cheat-step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .cheat-pair {
  margin-top: clamp(20px, 3vw, 30px);
  padding: clamp(18px, 3vw, 26px);
  border-left: 2px solid var(--orange);
  background: rgba(4, 24, 38, 0.34);
}

.page-faq .cheat-pair h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 20px;
  color: var(--ice);
}

.page-faq .cheat-pair p {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
  max-width: 58ch;
}

/* ---------- 联系 ---------- */
.page-faq .help-section {
  padding-top: clamp(36px, 6vw, 64px);
  padding-bottom: clamp(36px, 6vw, 64px);
}

.page-faq .help-grid {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
}

.page-faq .help-main .display-title {
  margin: 8px 0 14px;
  font-size: clamp(26px, 5vw, 42px);
  line-height: 1.1;
}

.page-faq .help-main .prose {
  color: var(--mist);
  font-size: 15px;
  line-height: 1.85;
  max-width: 54ch;
  margin: 0;
}

.page-faq .help-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(18px, 3vw, 26px);
}

.page-faq .help-card {
  padding: clamp(18px, 3vw, 26px);
  border: 1px solid var(--line);
  border-radius: var(--radius-cut) 4px var(--radius-cut) 4px;
  background:
    radial-gradient(110% 120% at 100% 0%, rgba(255, 178, 36, 0.14), transparent 62%),
    rgba(10, 53, 64, 0.62);
}

.page-faq .help-card-title {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-faq .help-mail {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: clamp(13px, 3.4vw, 16px);
  line-height: 1.5;
  color: var(--ice);
  word-break: break-all;
}

.page-faq .help-card .copy-btn {
  padding: 8px 14px;
  border: 1px solid var(--mint);
  border-radius: 999px;
  background: transparent;
  color: var(--mint);
  font-family: var(--font-body);
  font-size: 13px;
  cursor: pointer;
  transition: background 220ms var(--ease), color 220ms var(--ease);
}

.page-faq .help-card .copy-btn:hover,
.page-faq .help-card .copy-btn:focus-visible {
  background: var(--mint);
  color: var(--deep);
}

.page-faq .help-card .copy-status {
  display: inline-block;
  margin-left: 10px;
  font-size: 12px;
  color: var(--amber);
}

.page-faq .help-meta {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--faq-soft-line);
  display: grid;
  gap: 10px;
}

.page-faq .help-meta dt {
  font-size: 12px;
  color: var(--mist);
  letter-spacing: 0.06em;
}

.page-faq .help-meta dd {
  margin: 2px 0 0;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--foam);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-faq .start-head {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: end;
  }

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

  .page-faq .help-grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-faq .hero-grid {
    grid-template-columns: minmax(0, 1fr) 200px;
    align-items: end;
  }

  .page-faq .nav-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.82fr);
    align-items: start;
  }

  .page-faq .nav-figure {
    margin-top: 42px;
  }

  .page-faq .faq-tabs {
    grid-template-columns: 236px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-tabs .tablist {
    flex-direction: column;
    overflow: visible;
    position: sticky;
    top: 96px;
    padding-bottom: 0;
  }

  .page-faq .faq-tabs .tab {
    width: 100%;
    justify-content: flex-start;
    white-space: normal;
  }

  .page-faq .start-card {
    flex-basis: 300px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .start-card,
  .page-faq .jump-chip,
  .page-faq .faq-sign {
    transition: none;
  }
}