.page-faq {
  --faq-pad: clamp(18px, 2.6vw, 26px);
  --faq-green-ink: #0B6B4A;
  display: block;
}

.page-faq [id] {
  scroll-margin-top: 84px;
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumb {
  padding-top: 20px;
}

.page-faq .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--steel);
}

.page-faq .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}

.page-faq .breadcrumb a {
  color: var(--steel);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

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

.page-faq .breadcrumb a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: 26px 0 10px;
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: 30px;
}

.page-faq .faq-hero h1 {
  margin: 10px 0 0;
  font-size: clamp(27px, 4.6vw, 44px);
  line-height: 1.22;
  letter-spacing: -0.02em;
  color: #EFF5FF;
}

.page-faq .faq-hero__lead {
  margin: 14px 0 0;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--body);
}

.page-faq .faq-hero__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__stats .stat {
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--neon);
  border-radius: var(--radius);
  background: var(--hull);
}

.page-faq .faq-hero__stats .stat--orange {
  border-left-color: var(--orange);
}

.page-faq .stat__value {
  display: block;
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--neon);
}

.page-faq .stat--orange .stat__value {
  color: var(--orange);
}

.page-faq .stat__label {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--steel);
}

/* ---------- 搜索块 ---------- */
.page-faq .faq-search {
  padding: var(--faq-pad);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(53, 242, 164, 0.07), transparent 62%), var(--hull);
}

.page-faq .faq-search__title {
  margin: 0;
  font-size: 17px;
  letter-spacing: -0.01em;
  color: #EFF5FF;
}

.page-faq .faq-search__note {
  margin: 8px 0 14px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--steel);
}

.page-faq .faq-search__field {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--space);
}

.page-faq .faq-search__field:focus-within {
  border-color: var(--cyan);
  box-shadow: 0 0 0 2px rgba(79, 216, 255, 0.35);
}

.page-faq .faq-search__icon {
  position: relative;
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
  border: 2px solid var(--steel);
  border-radius: 50%;
}

.page-faq .faq-search__icon::after {
  content: "";
  position: absolute;
  right: -5px;
  bottom: -3px;
  width: 7px;
  height: 2px;
  background: var(--steel);
  transform: rotate(45deg);
}

.page-faq .faq-search__field input {
  flex: 1 1 auto;
  min-width: 0;
  padding: 12px 0;
  border: 0;
  background: transparent;
  color: var(--body);
  font: inherit;
  font-size: 15px;
}

.page-faq .faq-search__field input::placeholder {
  color: var(--steel);
}

.page-faq .faq-search__field input:focus {
  outline: none;
}

.page-faq .faq-search .chip-row {
  margin-top: 14px;
}

.page-faq .faq-search .chip {
  text-decoration: none;
  color: var(--body);
}

/* ---------- 章节标题 ---------- */
.page-faq .faq-head {
  margin-bottom: 24px;
}

.page-faq .faq-head__no {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--neon);
}

.page-faq .faq-head__no--dark {
  color: #0B6B4A;
}

.page-faq .faq-head h2 {
  margin: 8px 0 10px;
  font-size: clamp(21px, 3.2vw, 31px);
  line-height: 1.28;
  letter-spacing: -0.02em;
  color: #EFF5FF;
}

.page-faq .faq-head p {
  margin: 0;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--steel);
}

/* ---------- 01 四栏结构 ---------- */
.page-faq .faq-structure__grid {
  display: grid;
  gap: 24px;
}

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

.page-faq .faq-col {
  display: flex;
  gap: 16px;
  padding: 18px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--line);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: var(--hull);
}

.page-faq .faq-col--key {
  border-color: rgba(53, 242, 164, 0.55);
  border-left-color: var(--neon);
  background: linear-gradient(100deg, rgba(53, 242, 164, 0.12), transparent 68%), var(--hull);
}

.page-faq .faq-col__no {
  flex: 0 0 auto;
  font-size: 22px;
  font-weight: 800;
  line-height: 1;
  color: var(--steel);
}

.page-faq .faq-col--key .faq-col__no {
  color: var(--neon);
}

.page-faq .faq-col h3 {
  margin: 0 0 6px;
  font-size: 16px;
  letter-spacing: -0.01em;
  color: #EFF5FF;
}

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

.page-faq .faq-structure__figure {
  margin: 0;
}

/* ---------- 02 上手路径 ---------- */
.page-faq .faq-paths__grid {
  gap: 18px;
}

.page-faq .faq-path {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: var(--faq-pad);
  border-left: 3px solid var(--neon);
}

.page-faq .faq-path .card__title {
  margin: 0;
  font-size: 18px;
  letter-spacing: -0.01em;
}

.page-faq .faq-path .card__meta {
  margin: 0 0 6px;
}

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

.page-faq .faq-steps li {
  position: relative;
  padding-left: 36px;
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--body);
}

.page-faq .faq-steps li::before {
  counter-increment: faqstep;
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  display: grid;
  place-items: center;
  width: 26px;
  height: 22px;
  border: 1px solid var(--line);
  border-radius: 2px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--neon);
}

/* ---------- 03 规则卡片 ---------- */
.page-faq .faq-rules__grid {
  display: grid;
  gap: 24px;
}

.page-faq .faq-cards {
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-faq .faq-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--hull);
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.page-faq .faq-card:hover {
  border-color: rgba(53, 242, 164, 0.4);
  transform: translateY(-2px);
}

.page-faq .faq-card[open] {
  border-color: rgba(53, 242, 164, 0.55);
}

.page-faq .faq-card summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 16px;
  list-style: none;
  cursor: pointer;
}

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

.page-faq .faq-card summary::marker {
  content: "";
}

.page-faq .faq-card summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-faq .faq-card__no {
  flex: 0 0 auto;
  font-size: 13px;
  color: var(--orange);
}

.page-faq .faq-card__q {
  flex: 1 1 auto;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.55;
  color: #EFF5FF;
}

.page-faq .faq-card__sign {
  position: relative;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  border: 1px solid var(--line);
  border-radius: 2px;
}

.page-faq .faq-card__sign::before,
.page-faq .faq-card__sign::after {
  content: "";
  position: absolute;
  background: var(--neon);
}

.page-faq .faq-card__sign::before {
  left: 5px;
  right: 5px;
  top: 10px;
  height: 2px;
}

.page-faq .faq-card__sign::after {
  top: 5px;
  bottom: 5px;
  left: 10px;
  width: 2px;
  transition: transform 0.2s ease;
}

.page-faq .faq-card[open] .faq-card__sign::after {
  transform: scaleY(0);
}

.page-faq .faq-card__body {
  padding: 16px 18px 18px;
  border-radius: 0 0 var(--radius) var(--radius);
  background: var(--paper);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.8;
}

.page-faq .faq-card__body p {
  margin: 0;
}

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

.page-faq .faq-card__body a {
  color: var(--faq-green-ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-card__body a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .faq-card__related {
  padding-top: 10px;
  border-top: 1px dashed rgba(12, 20, 36, 0.22);
  font-size: 13.5px;
  color: #4A5768;
}

.page-faq .faq-rules__figure {
  margin: 0;
}

/* ---------- 04 常见问题分组 ---------- */
.page-faq .faq-groups {
  display: grid;
  gap: 30px;
}

.page-faq .faq-group__head {
  position: sticky;
  top: 56px;
  z-index: 3;
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  background: var(--space);
}

.page-faq .faq-group__no {
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--neon);
}

.page-faq .faq-group__head h3 {
  margin: 0;
  font-size: 17px;
  letter-spacing: -0.01em;
  color: #EFF5FF;
}

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

.page-faq .faq-qlist li {
  position: relative;
  padding: 11px 0 11px 22px;
  border-bottom: 1px dashed var(--line);
  font-size: 15px;
  line-height: 1.68;
  color: var(--body);
}

.page-faq .faq-qlist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 19px;
  width: 8px;
  height: 8px;
  border: 1px solid var(--neon);
  border-radius: 1px;
}

.page-faq .faq-qlist li:last-child {
  border-bottom: 0;
}

/* ---------- 05 排查 ---------- */
.page-faq .faq-trouble__grid {
  display: grid;
  gap: 18px;
}

.page-faq .faq-track {
  padding: var(--faq-pad);
  border: 1px solid var(--line);
  border-top: 3px solid var(--neon);
  border-radius: var(--radius);
  background: var(--hull);
}

.page-faq .faq-track--orange {
  border-top-color: var(--orange);
}

.page-faq .faq-track__title {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 14px;
  font-size: 17px;
  letter-spacing: -0.01em;
  color: #EFF5FF;
}

.page-faq .faq-track__title .num {
  font-size: 13px;
  color: var(--orange);
}

.page-faq .faq-track__steps {
  margin: 0;
  padding-left: 20px;
  display: grid;
  gap: 10px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--body);
}

.page-faq .faq-track__steps li::marker {
  color: var(--neon);
}

.page-faq .faq-trouble__cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 20px;
  margin: 22px 0 0;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--hull);
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--body);
}

.page-faq .faq-trouble__cta .btn {
  text-decoration: none;
}

/* ---------- 06 联系 ---------- */
.page-faq .faq-panel {
  display: grid;
  gap: 26px;
  padding: clamp(22px, 3.2vw, 40px);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink);
}

.page-faq .faq-panel h2 {
  margin: 8px 0 12px;
  font-size: clamp(21px, 3vw, 30px);
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-faq .faq-panel__copy p {
  margin: 0 0 12px;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.8;
  color: #2A3547;
}

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

.page-faq .faq-panel__info {
  display: grid;
  gap: 16px;
  align-content: start;
  margin: 0;
  padding: 20px;
  border: 1px solid rgba(12, 20, 36, 0.16);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.55);
}

.page-faq .faq-panel__info dt {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: #5A6678;
}

.page-faq .faq-panel__info dd {
  margin: 5px 0 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--ink);
  word-break: break-word;
}

.page-faq .faq-foot-links {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--steel);
}

.page-faq .faq-foot-links a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(79, 216, 255, 0.4);
}

.page-faq .faq-foot-links a:hover {
  border-bottom-color: var(--cyan);
}

.page-faq .faq-foot-links a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-trouble__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 768px) {
  .page-faq .faq-hero {
    padding-top: 36px;
  }

  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.5fr) minmax(280px, 0.9fr);
    align-items: start;
    gap: 44px;
  }

  .page-faq .faq-structure__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
    gap: 32px;
  }

  .page-faq .faq-rules__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: start;
    gap: 36px;
  }

  .page-faq .faq-groups {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 34px 36px;
  }

  .page-faq .faq-panel {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
    gap: 36px;
  }

  .page-faq .faq-panel__info {
    margin-top: 8px;
  }
}

@media (min-width: 992px) {
  .page-faq .faq-groups {
    gap: 40px 56px;
  }

  .page-faq .faq-qlist li {
    font-size: 15.5px;
  }
}

@media (max-width: 767px) {
  .page-faq .faq-group__head {
    top: 48px;
  }

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

  .page-faq .faq-panel__info dd {
    font-size: 15px;
  }
}

@media (max-width: 479px) {
  .page-faq .faq-hero__stats {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-faq .faq-col {
    flex-direction: column;
    gap: 8px;
  }

  .page-faq .faq-trouble__cta {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-card,
  .page-faq .faq-card__sign::after {
    transition: none;
  }

  .page-faq .faq-card:hover {
    transform: none;
  }
}