.page-faq {
  --faq-line: rgba(143, 163, 191, 0.22);
  --faq-panel: #111c33;
  --faq-panel-hi: #16223c;
  --faq-gap: clamp(16px, 3vw, 28px);
  --faq-radius: 0;
  position: relative;
  color: var(--paper);
  padding: clamp(20px, 3vw, 36px) 0 clamp(48px, 7vw, 88px);
  background-image:
    linear-gradient(180deg, rgba(17, 28, 51, 0.7) 0%, rgba(10, 16, 32, 0) 340px),
    repeating-linear-gradient(90deg, rgba(140, 216, 255, 0.05) 0 1px, transparent 1px 72px);
}

.page-faq *,
.page-faq *::before,
.page-faq *::after {
  box-sizing: border-box;
}

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

.page-faq .faq-shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: clamp(16px, 4vw, 28px);
}

.page-faq a:focus-visible,
.page-faq button:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--fluor);
  outline-offset: 3px;
}

/* 面包屑与页头 */
.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 clamp(14px, 2vw, 22px);
  font-size: 13px;
  color: var(--haze);
}

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

.page-faq .breadcrumb a:hover {
  text-decoration: underline;
}

.page-faq .breadcrumb__sep {
  color: var(--ink-2);
}

.page-faq .faq-head {
  position: relative;
  padding-bottom: clamp(18px, 3vw, 28px);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-head .eyebrow {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--haze);
}

.page-faq .faq-head .page-title {
  margin: 0 0 14px;
  max-width: 22em;
  font-size: clamp(27px, 4.4vw, 44px);
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-head .page-lede {
  margin: 0;
  max-width: 48em;
  font-size: clamp(15px, 1.4vw, 16.5px);
  line-height: 1.78;
  color: var(--haze);
}

/* 症状入口 */
.page-faq .faq-paths {
  margin-top: clamp(24px, 4vw, 40px);
}

.page-faq .paths-head {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}

.page-faq .paths-head h2 {
  margin: 0;
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 800;
  color: var(--paper);
}

.page-faq .paths-head p {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--haze);
}

.page-faq .path-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .path-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 44px;
  padding: 14px 16px;
  color: var(--paper);
  text-decoration: none;
  background: var(--faq-panel);
  border: 1px solid var(--faq-line);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
  transition: transform var(--dur) ease, border-color var(--dur) ease, background var(--dur) ease;
}

.page-faq .path-card:hover,
.page-faq .path-card:focus-visible {
  transform: translateY(-4px);
  border-color: var(--ice);
  background: var(--faq-panel-hi);
}

.page-faq .path-num {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--fluor);
}

.page-faq .path-title {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.45;
}

.page-faq .path-desc {
  font-size: 13px;
  line-height: 1.6;
  color: var(--haze);
}

/* 主体栅格 */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  margin-top: clamp(24px, 4vw, 44px);
}

/* 分类索引 */
.page-faq .faq-index {
  padding: 16px;
  background: rgba(17, 28, 51, 0.62);
  border: 1px solid var(--faq-line);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

.page-faq .index-title {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--haze);
}

.page-faq .index-list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
}

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

.page-faq .index-list a {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 10px 12px;
  color: var(--paper);
  text-decoration: none;
  background: rgba(43, 51, 69, 0.4);
  border: 1px solid transparent;
  white-space: nowrap;
  transition: border-color var(--dur) ease, background var(--dur) ease;
}

.page-faq .index-list a:hover,
.page-faq .index-list a:focus-visible {
  border-color: var(--ice);
  background: rgba(140, 216, 255, 0.1);
}

.page-faq .index-num {
  font-size: 12px;
  color: var(--ice);
}

.page-faq .index-label {
  font-size: 13.5px;
}

.page-faq .index-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(143, 163, 191, 0.45);
  transition: background var(--dur) ease, box-shadow var(--dur) ease;
}

.page-faq .index-list a:hover .index-dot,
.page-faq .index-list a:focus-visible .index-dot {
  background: var(--fluor);
  box-shadow: 0 0 8px var(--fluor);
}

.page-faq .index-note {
  margin: 12px 0 0;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--haze);
}

/* 问答区 */
.page-faq .faq-main {
  min-width: 0;
}

.page-faq .faq-section {
  scroll-margin-top: 96px;
  margin-bottom: clamp(28px, 4vw, 46px);
}

.page-faq .faq-section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 12px;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-section__num {
  font-size: 13px;
  color: var(--fluor);
}

.page-faq .faq-section__head h2 {
  flex: 1 1 auto;
  margin: 0;
  font-size: clamp(19px, 2.2vw, 25px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-section__count {
  font-size: 12px;
  color: var(--haze);
}

.page-faq .qa {
  margin-bottom: 10px;
  background: var(--faq-panel);
  border: 1px solid var(--faq-line);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
  transition: border-color var(--dur) ease, background var(--dur) ease;
}

.page-faq .qa:hover {
  border-color: rgba(140, 216, 255, 0.42);
}

.page-faq .qa[open] {
  background: var(--faq-panel-hi);
  border-color: rgba(140, 216, 255, 0.5);
}

.page-faq .qa__summary {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr) 18px;
  gap: 10px;
  align-items: start;
  min-height: 44px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa__num {
  padding-top: 2px;
  font-size: 12px;
  color: var(--ice);
}

.page-faq .qa__q {
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--paper);
}

.page-faq .qa__sign {
  position: relative;
  width: 16px;
  height: 16px;
  margin-top: 4px;
}

.page-faq .qa__sign::before,
.page-faq .qa__sign::after {
  content: "";
  position: absolute;
  background: var(--ice);
  transition: transform var(--dur) ease, opacity var(--dur) ease, background var(--dur) ease;
}

.page-faq .qa__sign::before {
  left: 0;
  top: 7px;
  width: 16px;
  height: 2px;
}

.page-faq .qa__sign::after {
  left: 7px;
  top: 0;
  width: 2px;
  height: 16px;
}

.page-faq .qa[open] .qa__sign::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .qa[open] .qa__sign::before {
  background: var(--fluor);
}

.page-faq .qa__body {
  padding: 0 16px 18px 66px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--paper);
}

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

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

.page-faq .qa__body a {
  color: var(--ice);
}

.page-faq .qa__next {
  margin-top: 12px;
  padding-left: 12px;
  border-left: 2px solid rgba(59, 240, 192, 0.55);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--haze);
}

.page-faq .qa__next a {
  color: var(--ice);
}

.page-faq .steps {
  counter-reset: step;
  display: grid;
  gap: 10px;
  margin: 12px 0;
  padding: 0;
  list-style: none;
}

.page-faq .steps li {
  counter-increment: step;
  position: relative;
  padding-left: 34px;
  font-size: 14.5px;
  line-height: 1.72;
}

.page-faq .steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 2px;
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fluor);
  border: 1px solid rgba(59, 240, 192, 0.7);
  background: rgba(59, 240, 192, 0.08);
}

/* 验证流程速览 */
.page-faq .verify-brief {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 16px;
  padding: 16px;
  background:
    linear-gradient(120deg, rgba(140, 216, 255, 0.09), rgba(10, 16, 32, 0) 62%),
    rgba(17, 28, 51, 0.75);
  border: 1px solid var(--faq-line);
  border-left: 3px solid var(--ice);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

.page-faq .brief-steps {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  align-content: start;
}

.page-faq .brief-steps li {
  font-size: 14px;
  line-height: 1.65;
  color: var(--paper);
}

.page-faq .brief-steps .mono {
  display: inline-block;
  min-width: 62px;
  margin-right: 6px;
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--fluor);
}

.page-faq .verify-media {
  margin: 0;
  max-width: 260px;
}

.page-faq .media-caption {
  margin-top: 8px;
  font-size: 12px;
  line-height: 1.55;
  color: var(--haze);
}

/* 联系前准备 */
.page-faq .prepare-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  padding: 18px;
  background: rgba(17, 28, 51, 0.75);
  border: 1px solid var(--faq-line);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

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

.page-faq .prepare-list li {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding-bottom: 10px;
  font-size: 14.5px;
  line-height: 1.6;
  border-bottom: 1px dashed rgba(143, 163, 191, 0.22);
}

.page-faq .prepare-list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-faq .prep-num {
  font-size: 12px;
  color: var(--clay);
}

.page-faq .prepare-note p {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--haze);
}

.page-faq .prepare-channels {
  font-size: 14px;
  line-height: 1.9;
  color: var(--paper);
}

.page-faq .prepare-channels .mono {
  display: inline-block;
  min-width: 42px;
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--ice);
}

/* 下一步 */
.page-faq .faq-next {
  padding: 20px;
  background: linear-gradient(115deg, rgba(255, 138, 61, 0.13), rgba(10, 16, 32, 0) 70%);
  border: 1px solid rgba(255, 138, 61, 0.32);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

.page-faq .faq-next h2 {
  margin: 0 0 14px;
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 800;
  color: var(--paper);
}

.page-faq .next-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .next-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 10px 14px;
  font-size: 14px;
  color: var(--paper);
  text-decoration: none;
  background: rgba(10, 16, 32, 0.5);
  border: 1px solid rgba(143, 163, 191, 0.32);
  transition: border-color var(--dur) ease, color var(--dur) ease, transform var(--dur) ease;
}

.page-faq .next-link:hover,
.page-faq .next-link:focus-visible {
  transform: translateY(-2px);
  border-color: var(--ember);
  color: var(--ember);
}

.page-faq .next-idx {
  font-size: 11.5px;
  color: var(--ember);
}

/* 仍需帮助 */
.page-faq .faq-help {
  align-self: start;
  padding: 18px;
  background: var(--faq-panel);
  border: 1px solid var(--faq-line);
}

.page-faq .help-kicker {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--fluor);
}

.page-faq .faq-help h2 {
  margin: 0 0 14px;
  font-size: clamp(18px, 2vw, 22px);
  font-weight: 800;
  color: var(--paper);
}

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

.page-faq .help-text {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--haze);
}

.page-faq .copy-value {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  min-height: 44px;
  padding: 10px 12px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  text-align: left;
  color: var(--ice);
  background: rgba(140, 216, 255, 0.08);
  border: 1px solid rgba(140, 216, 255, 0.35);
  cursor: pointer;
  transition: background var(--dur) ease, border-color var(--dur) ease;
}

.page-faq .copy-value:hover,
.page-faq .copy-value:focus-visible {
  background: rgba(140, 216, 255, 0.16);
  border-color: var(--ice);
}

.page-faq .copy-hint {
  margin-left: auto;
  font-family: var(--font-sans);
  font-size: 11.5px;
  color: var(--haze);
}

.page-faq .help-phone {
  margin: 12px 0 0;
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--paper);
}

.page-faq .help-note {
  margin: 8px 0 16px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--haze);
}

.page-faq .help-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 44px;
  text-decoration: none;
}

/* 断点 */
@media (min-width: 560px) {
  .page-faq .path-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .prepare-card {
    grid-template-columns: 1fr 1fr;
    gap: 22px;
  }
}

@media (min-width: 760px) {
  .page-faq .verify-brief {
    grid-template-columns: minmax(0, 1fr) 220px;
    align-items: start;
    gap: 20px;
    padding: 20px;
  }

  .page-faq .verify-media {
    max-width: none;
  }

  .page-faq .qa__body {
    padding-left: 66px;
  }
}

@media (min-width: 900px) {
  .page-faq .path-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-layout {
    grid-template-columns: 208px minmax(0, 1fr) 272px;
    align-items: start;
  }

  .page-faq .faq-index,
  .page-faq .faq-help {
    position: sticky;
    top: 24px;
  }

  .page-faq .index-list {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .index-list li {
    flex: 1 1 auto;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-faq .path-card,
  .page-faq .qa,
  .page-faq .qa__sign::before,
  .page-faq .qa__sign::after,
  .page-faq .next-link {
    transition: none;
  }

  .page-faq .path-card:hover,
  .page-faq .next-link:hover {
    transform: none;
  }
}