.page-faq {
  --faq-measure: 68ch;
  display: block;
  color: var(--silver);
  background:
    radial-gradient(1100px 520px at 88% -12%, rgba(31, 122, 85, 0.26), transparent 62%),
    radial-gradient(760px 420px at 4% 42%, rgba(63, 224, 212, 0.07), transparent 66%);
  padding-bottom: clamp(56px, 8vw, 104px);
  overflow-x: clip;
}

.page-faq a {
  overflow-wrap: break-word;
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  margin: 22px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
}

.page-faq .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .breadcrumb li {
  display: flex;
  align-items: center;
  gap: 6px;
}

.page-faq .breadcrumb li + li::before {
  content: "/";
  color: var(--signal);
}

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

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--cyber);
}

.page-faq .breadcrumb [aria-current="page"] {
  color: var(--cyber);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  margin-top: 26px;
  padding: clamp(26px, 5vw, 52px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(158deg, rgba(31, 122, 85, 0.34), rgba(18, 54, 42, 0.76) 52%, rgba(11, 31, 23, 0.94));
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(63, 224, 212, 0.09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(63, 224, 212, 0.09) 1px, transparent 1px);
  background-size: 54px 54px;
  -webkit-mask-image: radial-gradient(circle at 84% 8%, #000 0%, transparent 70%);
  mask-image: radial-gradient(circle at 84% 8%, #000 0%, transparent 70%);
  pointer-events: none;
}

.page-faq .faq-hero > * {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero .index-line {
  margin: 0 0 14px;
  color: var(--cyber);
}

.page-faq .faq-hero .h-page {
  margin: 0;
  color: var(--cream);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.16;
  font-size: clamp(28px, 6vw, 46px);
}

.page-faq .faq-hero .lede {
  max-width: var(--faq-measure);
  margin: 18px 0 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--silver);
}

.page-faq .faq-hero__slots {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(22px, 3vw, 30px);
}

.page-faq .faq-hero__note {
  margin: 22px 0 0;
  color: var(--index);
}

/* ---------- 分类跳转条 ---------- */
.page-faq .faq-jumps {
  position: sticky;
  top: 0;
  z-index: 6;
  display: flex;
  gap: 8px;
  margin-top: clamp(24px, 4vw, 38px);
  padding: 12px 2px;
  overflow-x: auto;
  scrollbar-width: none;
  background: linear-gradient(180deg, rgba(11, 31, 23, 0.97), rgba(11, 31, 23, 0.86));
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-block: 1px solid var(--line);
}

.page-faq .faq-jumps::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-jumps a {
  flex: 0 0 auto;
  padding: 7px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--index);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  text-decoration: none;
  transition: color 180ms var(--ease), border-color 180ms var(--ease), background 180ms var(--ease);
}

.page-faq .faq-jumps a:hover,
.page-faq .faq-jumps a:focus-visible {
  color: var(--cyber);
  border-color: var(--cyber);
  background: rgba(63, 224, 212, 0.08);
}

/* ---------- 章节骨架 ---------- */
.page-faq .faq-section {
  margin-top: clamp(46px, 7vw, 86px);
  scroll-margin-top: 96px;
}

.page-faq .faq-section__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 12px;
  margin-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-section__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--cyber);
}

.page-faq .faq-section__head h2 {
  margin: 0;
  font-size: clamp(21px, 3.4vw, 27px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--cream);
}

.page-faq .faq-section > p {
  max-width: var(--faq-measure);
  margin: 0;
  line-height: 1.78;
}

.page-faq .faq-section a {
  color: var(--cyber);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 224, 212, 0.4);
}

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

/* ---------- 横向坐标刻度 ---------- */
.page-faq .faq-tick {
  position: relative;
  height: 24px;
  margin: clamp(38px, 6vw, 72px) 0;
  border-bottom: 1px solid var(--line);
  background-image: repeating-linear-gradient(to right, var(--line-strong) 0 1px, transparent 1px 44px);
  background-repeat: repeat-x;
  background-position: left bottom;
  background-size: 44px 12px;
  pointer-events: none;
}

.page-faq .faq-tick::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 128px;
  height: 1px;
  background: linear-gradient(90deg, var(--cyber), transparent);
}

/* ---------- 图片容器 ---------- */
.page-faq .media-frame {
  margin: clamp(20px, 3vw, 30px) 0 0;
  overflow: hidden;
}

.page-faq .media-frame img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

/* ---------- 分步切换 ---------- */
.page-faq .faq-tabs {
  margin-top: clamp(26px, 4vw, 38px);
}

.page-faq .faq-tabs__bar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 22px;
}

.page-faq .faq-tab {
  appearance: none;
  padding: 9px 16px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: transparent;
  color: var(--index);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: color 180ms var(--ease), border-color 180ms var(--ease), background 180ms var(--ease);
}

.page-faq .faq-tab:hover {
  color: var(--silver);
  border-color: var(--signal);
}

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

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

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

.page-faq .faq-tabpanel:focus-visible {
  outline: 2px solid var(--cyber);
  outline-offset: 6px;
  border-radius: 6px;
}

/* ---------- 编号步骤 ---------- */
.page-faq .step-list {
  list-style: none;
  counter-reset: faqstep;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .step-list li {
  position: relative;
  padding-left: 48px;
  line-height: 1.75;
  color: var(--silver);
}

.page-faq .step-list li::before {
  counter-increment: faqstep;
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyber);
  border: 1px solid rgba(63, 224, 212, 0.42);
  border-radius: 50%;
  background: rgba(63, 224, 212, 0.06);
}

/* ---------- 提示条 ---------- */
.page-faq .faq-note {
  max-width: var(--faq-measure);
  margin: clamp(24px, 3.4vw, 34px) 0 0;
  padding: 15px 20px;
  border-left: 3px solid var(--amber);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: rgba(255, 138, 61, 0.09);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--silver);
}

/* ---------- 偏心分栏 ---------- */
.page-faq .faq-split {
  display: grid;
  gap: clamp(24px, 4vw, 38px);
}

.page-faq .faq-split__main > p {
  max-width: var(--faq-measure);
  margin: 0;
  line-height: 1.78;
}

/* ---------- 三条路径 ---------- */
.page-faq .path-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 20px;
}

.page-faq .path-list li {
  padding-left: 18px;
  border-left: 2px solid var(--signal);
}

.page-faq .path-list strong {
  display: block;
  margin-bottom: 6px;
  color: var(--cream);
  font-size: 16px;
  font-weight: 700;
}

.page-faq .path-list p {
  margin: 0;
  max-width: var(--faq-measure);
  line-height: 1.75;
  color: var(--silver);
}

/* ---------- 折叠问答 ---------- */
.page-faq .qa {
  border-bottom: 1px solid var(--line);
}

.page-faq .qa summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--cream);
  transition: color 180ms var(--ease);
}

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

.page-faq .qa summary::after {
  content: "+";
  margin-left: auto;
  padding-left: 12px;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--cyber);
  line-height: 1.2;
}

.page-faq .qa[open] summary::after {
  content: "\2013";
}

.page-faq .qa summary:hover,
.page-faq .qa summary:focus-visible {
  color: var(--cyber);
}

.page-faq .qa summary:focus-visible {
  outline: 2px solid var(--cyber);
  outline-offset: 3px;
  border-radius: 4px;
}

.page-faq .qa__num {
  flex: 0 0 auto;
  min-width: 30px;
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyber);
}

.page-faq .qa__body {
  padding: 0 0 20px 44px;
}

.page-faq .qa__body p {
  max-width: var(--faq-measure);
  margin: 0;
  line-height: 1.78;
  color: var(--silver);
}

/* ---------- 联系前准备 ---------- */
.page-faq .prep-list {
  list-style: none;
  margin: clamp(22px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-faq .prep-list li {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(18, 54, 42, 0.55);
}

.page-faq .prep-list__icon {
  font-size: 14px;
  line-height: 1.9;
  color: var(--cyber);
}

.page-faq .prep-list strong {
  display: block;
  margin-bottom: 5px;
  color: var(--cream);
  font-size: 15.5px;
}

.page-faq .prep-list p {
  margin: 0;
  line-height: 1.72;
  color: var(--silver);
  font-size: 15px;
}

/* ---------- 支持渠道（奶油面板） ---------- */
.page-faq .contact-panel {
  margin-top: 8px;
  padding: clamp(26px, 4.6vw, 52px);
  border: 1px solid rgba(36, 26, 21, 0.16);
  border-radius: var(--radius);
  background: var(--cream);
  color: var(--ink);
  box-shadow: var(--shadow-1);
}

.page-faq .contact-panel .index-line {
  margin: 0 0 12px;
  color: var(--cinnabar);
}

.page-faq .contact-panel h2 {
  margin: 0;
  font-size: clamp(22px, 3.4vw, 30px);
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-faq .contact-panel > p {
  max-width: var(--faq-measure);
  margin: 14px 0 0;
  line-height: 1.78;
  color: rgba(36, 26, 21, 0.84);
}

.page-faq .contact-list {
  list-style: none;
  margin: clamp(22px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-faq .contact-list li {
  display: grid;
  gap: 5px;
}

.page-faq .contact-key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(36, 26, 21, 0.52);
}

.page-faq .contact-list a,
.page-faq .contact-val {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink);
  text-decoration: none;
  overflow-wrap: break-word;
}

.page-faq .contact-list a {
  border-bottom: 1px solid rgba(36, 26, 21, 0.32);
  justify-self: start;
}

.page-faq .contact-list a:hover,
.page-faq .contact-list a:focus-visible {
  color: var(--cinnabar);
  border-bottom-color: var(--cinnabar);
}

.page-faq .contact-panel__note {
  max-width: var(--faq-measure);
  margin: clamp(22px, 3vw, 30px) 0 0;
  padding-top: 18px;
  border-top: 1px solid rgba(36, 26, 21, 0.16);
  font-size: 14px;
  line-height: 1.75;
  color: rgba(36, 26, 21, 0.72);
}

.page-faq .contact-panel__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(22px, 3vw, 28px);
}

.page-faq .contact-panel__actions .btn {
  text-decoration: none;
  border-bottom: 0;
}

/* ---------- 响应式 ---------- */
@media (max-width: 600px) {
  .page-faq .faq-hero {
    padding: 24px 20px;
  }

  .page-faq .faq-section__head {
    gap: 10px;
  }

  .page-faq .step-list li {
    padding-left: 42px;
  }

  .page-faq .step-list li::before {
    width: 28px;
    height: 28px;
    font-size: 11px;
  }

  .page-faq .qa summary {
    font-size: 15.5px;
    gap: 10px;
  }

  .page-faq .qa__num {
    min-width: 24px;
  }

  .page-faq .qa__body {
    padding-left: 34px;
  }

  .page-faq .prep-list li {
    grid-template-columns: 20px minmax(0, 1fr);
    gap: 10px;
    padding: 14px;
  }

  .page-faq .contact-panel__actions .btn {
    width: 100%;
    text-align: center;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-split--flip {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.55fr);
  }

  .page-faq .faq-split__aside {
    position: sticky;
    top: 88px;
  }

  .page-faq .faq-split__aside .media-frame {
    margin-top: 0;
  }

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

  .page-faq .contact-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-jumps a,
  .page-faq .faq-tab,
  .page-faq .qa summary {
    transition: none;
  }
}