.page-faq {
  --faq-index-w: 216px;
  --faq-gap: 32px;
  color: var(--mist);
  padding-bottom: 80px;
}

.page-faq .crumbs {
  margin-bottom: 26px;
}

.page-faq .crumbs ul {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--stone);
}

.page-faq .crumbs li + li::before {
  content: "/";
  margin-right: 6px;
  color: rgba(138, 147, 160, 0.55);
}

.page-faq .crumbs a {
  color: var(--moss-lit);
  text-decoration: none;
}

.page-faq .crumbs a:hover {
  color: var(--signal);
}

.page-faq .faq-hero {
  position: relative;
  padding-bottom: 38px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: min(240px, 46%);
  height: 2px;
  background: linear-gradient(90deg, var(--signal), rgba(255, 107, 44, 0));
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 6.6vw, 58px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--bone);
  margin: 14px 0 0;
  max-width: 18ch;
}

.page-faq .faq-hero__lede {
  margin: 22px 0 0;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.85;
}

.page-faq .faq-hero__facts {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 18px;
}

.page-faq .faq-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 9px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--stone);
}

.page-faq .faq-num {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--bone);
  line-height: 1;
}

.page-faq .faq-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  margin-top: 40px;
}

.page-faq .faq-index {
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--moss);
  padding: 20px 20px 18px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-faq .faq-index__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--moss-lit);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4px;
}

.page-faq .faq-index__list a {
  display: flex;
  gap: 9px;
  align-items: baseline;
  padding: 8px 6px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--mist);
  text-decoration: none;
  border-radius: var(--radius);
  transition: background var(--speed) ease, color var(--speed) ease;
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  background: var(--lift);
  color: var(--bone);
}

.page-faq .faq-index__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--moss-lit);
}

.page-faq .faq-index__note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--stone);
}

.page-faq .faq-flow {
  display: grid;
  gap: 34px;
  min-width: 0;
}

.page-faq .faq-block {
  scroll-margin-top: 24px;
  padding: 26px 22px 24px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-top: 3px solid var(--lift);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
  min-width: 0;
}

.page-faq .faq-block h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 4vw, 32px);
  line-height: 1.25;
  letter-spacing: -0.015em;
  color: var(--bone);
}

.page-faq .faq-block__lede {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-block__foot {
  margin: 22px 0 0;
  padding: 14px 16px;
  border-left: 3px solid var(--clay);
  background: rgba(185, 97, 74, 0.08);
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-block__foot a {
  color: var(--moss-lit);
  text-decoration: none;
  border-bottom: 1px solid rgba(79, 179, 155, 0.45);
}

.page-faq .faq-block__foot a:hover {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

.page-faq .faq-sub {
  margin: 30px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  color: var(--bone);
}

/* 四步流程链 */
.page-faq .faq-steps {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
}

.page-faq .faq-step {
  position: relative;
  padding: 0 0 26px 36px;
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 24px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, var(--moss), rgba(46, 125, 107, 0.12));
}

.page-faq .faq-step:last-child {
  padding-bottom: 0;
}

.page-faq .faq-step:last-child::before {
  display: none;
}

.page-faq .faq-step__idx {
  position: absolute;
  left: 0;
  top: 2px;
  width: 23px;
  height: 23px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  color: var(--ink);
  background: var(--moss-lit);
  clip-path: polygon(0 0, 100% 0, 100% 68%, 68% 100%, 0 100%);
}

.page-faq .faq-step--verify .faq-step__idx {
  background: var(--signal);
  color: var(--bone);
}

.page-faq .faq-step--verify::after {
  content: "";
  position: absolute;
  left: -1px;
  top: 1px;
  width: 25px;
  height: 25px;
  border-radius: 50%;
  border: 1px solid var(--signal);
  animation: faq-pulse 2.4s ease-out infinite;
  pointer-events: none;
}

@keyframes faq-pulse {
  0% {
    transform: scale(0.8);
    opacity: 0.85;
  }
  100% {
    transform: scale(1.55);
    opacity: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-step--verify::after {
    animation: none;
  }
}

.page-faq .faq-step__body h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.45;
  color: var(--bone);
}

.page-faq .faq-step__meta {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--moss-lit);
}

.page-faq .faq-step__body p {
  margin: 9px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-step__ok {
  padding-left: 16px;
  position: relative;
  color: var(--bone);
}

.page-faq .faq-step__ok::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 7px;
  background: var(--moss-lit);
  transform: rotate(45deg);
}

/* 图片 */
.page-faq .faq-figure {
  margin: 30px 0 0;
}

.page-faq .faq-figure .media {
  background: var(--ink);
  border: 1px solid var(--line);
  overflow: hidden;
  position: relative;
}

.page-faq .faq-figure .media--tall {
  aspect-ratio: 5 / 7;
  max-width: 340px;
}

.page-faq .faq-figure--search .media {
  aspect-ratio: 3 / 2;
}

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

/* 验证分支 */
.page-faq .faq-branch {
  display: grid;
  gap: 10px;
  margin-top: 24px;
}

.page-faq details {
  background: var(--ink);
  border: 1px solid var(--line);
  border-left: 3px solid var(--clay);
  padding: 0 18px;
  min-width: 0;
}

.page-faq details[open] {
  background: var(--lift);
  border-left-color: var(--signal);
}

.page-faq summary {
  list-style: none;
  cursor: pointer;
  padding: 16px 0;
  display: flex;
  align-items: center;
  gap: 11px;
  font-size: 15px;
  line-height: 1.5;
  color: var(--bone);
}

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

.page-faq summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 17px;
  color: var(--moss-lit);
  flex: none;
}

.page-faq details[open] summary::after {
  content: "–";
  color: var(--signal);
}

.page-faq .faq-branch__tag {
  flex: none;
  width: 20px;
  height: 20px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--bone);
  background: var(--moss);
  clip-path: polygon(0 0, 100% 0, 100% 66%, 66% 100%, 0 100%);
}

.page-faq details p {
  margin: 0 0 18px;
  padding-left: 31px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

/* 重试步骤 */
.page-faq .faq-retry {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-retry li {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  align-items: baseline;
  padding: 13px 16px;
  background: var(--ink);
  border-left: 2px solid var(--moss);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-retry__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--moss-lit);
  flex: none;
}

.page-faq .faq-retry a {
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 107, 44, 0.5);
}

/* 检索建议 */
.page-faq .faq-tips {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-tips li {
  position: relative;
  padding-left: 22px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-tips li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.68em;
  width: 8px;
  height: 8px;
  border: 1px solid var(--moss-lit);
  transform: rotate(45deg);
}

.page-faq .faq-tips strong {
  color: var(--bone);
  font-weight: 600;
}

.page-faq .faq-label {
  margin: 26px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--stone);
}

.page-faq .faq-code {
  margin: 10px 0 0;
  padding: 16px 18px;
  background: var(--ink);
  border: 1px solid var(--line);
  border-left: 3px solid var(--signal);
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.07em;
  line-height: 2;
  color: var(--bone);
}

/* 线路卡 */
.page-faq .faq-lines {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-line {
  padding: 18px 18px 16px;
  background: var(--ink);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
}

.page-faq .faq-line__code {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--amber);
}

.page-faq .faq-line h3 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  color: var(--bone);
}

.page-faq .faq-line p {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

/* 版本判断 */
.page-faq .faq-vercheck {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-vercheck li {
  padding: 16px 18px;
  background: var(--ink);
  border-left: 3px solid var(--moss);
}

.page-faq .faq-vercheck__k {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--moss-lit);
}

.page-faq .faq-vercheck p {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

/* 人工准备清单 */
.page-faq .faq-prep {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-faq .faq-prep li {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: baseline;
  padding: 12px 15px;
  background: var(--ink);
  border: 1px dashed var(--line);
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-prep__k {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--amber);
  flex: none;
  min-width: 64px;
}

.page-faq .faq-contact {
  margin: 22px 0 0;
  padding: 18px;
  background: var(--ink);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 12px;
}

.page-faq .faq-contact__row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  align-items: baseline;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-contact__k {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--stone);
  flex: none;
  min-width: 44px;
}

.page-faq .faq-contact a {
  color: var(--bone);
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 239, 233, 0.35);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

.page-faq .faq-contact a:hover {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

/* CTA */
.page-faq .faq-cta {
  margin: 24px 0 0;
  padding: 18px 20px;
  background: linear-gradient(100deg, rgba(255, 107, 44, 0.14), rgba(28, 58, 99, 0.25));
  border-left: 3px solid var(--signal);
  display: flex;
  flex-wrap: wrap;
  gap: 14px 20px;
  align-items: center;
  justify-content: space-between;
}

.page-faq .faq-cta__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--mist);
  max-width: 46ch;
}

.page-faq .faq-cta .btn {
  flex: none;
}

/* 响应式 */
@media (min-width: 640px) {
  .page-faq .faq-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-prep {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-faq .faq-block {
    padding: 32px 30px 28px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-shell {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    gap: 48px;
    margin-top: 56px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 24px;
    align-self: start;
  }

  .page-faq .faq-index__list {
    grid-template-columns: 1fr;
  }

  .page-faq .faq-block {
    padding: 36px 38px 32px;
  }

  .page-faq .faq-figure--search .media {
    max-width: 620px;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-block__lede {
    font-size: 15.5px;
  }
}