.page-faq {
  --faq-radius: 14px;
  --faq-gap: 14px;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  padding: clamp(28px, 5vw, 58px) 0 clamp(22px, 3.5vw, 40px);
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(30px, 5.2vw, 54px);
  line-height: 1.08;
  letter-spacing: 0.02em;
  margin: 14px 0 0;
  max-width: 20em;
  color: var(--paper);
}

.page-faq .faq-hero .lede {
  margin: 18px 0 0;
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.82;
  color: var(--mute);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin-top: 26px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: var(--mute);
}

.page-faq .faq-hero__meta span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.page-faq .faq-hero__meta span::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--mint-400);
  flex: none;
}

/* ---------- 工作区 ---------- */

.page-faq .faq-workspace {
  padding: clamp(26px, 4vw, 46px) 0 clamp(48px, 7vw, 92px);
}

.page-faq .faq-workspace .grid--3-9 {
  align-items: start;
}

/* ---------- 侧边索引 ---------- */

.page-faq .faq-index {
  padding: 16px 14px;
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  margin-bottom: 22px;
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mint-400);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

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

.page-faq .faq-index__list li {
  flex: none;
}

.page-faq .faq-index__list a {
  display: block;
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 13px;
  line-height: 1.3;
  color: var(--mute);
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease),
    background var(--dur) var(--ease);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--paper);
  border-color: var(--line-strong);
  background: var(--glass-cyan);
  outline: none;
}

/* ---------- 内容块 ---------- */

.page-faq .faq-block {
  scroll-margin-top: calc(var(--bar-h) + 26px);
  padding-bottom: clamp(30px, 5vw, 52px);
  border-bottom: 1px solid var(--line);
  margin-bottom: clamp(30px, 5vw, 52px);
}

.page-faq .faq-block:last-child {
  border-bottom: 0;
  margin-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-block__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
}

.page-faq .faq-block__head h2 {
  font-family: var(--font-display);
  font-size: clamp(22px, 2.7vw, 32px);
  line-height: 1.2;
  letter-spacing: 0.02em;
  margin: 0;
  color: var(--paper);
}

.page-faq .faq-block__lede {
  margin: 16px 0 0;
  padding: 14px 16px;
  border-left: 2px solid var(--mint-400);
  background: var(--glass-cyan);
  border-radius: 0 10px 10px 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--paper);
  max-width: 66ch;
}

.page-faq .faq-note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mute);
  max-width: 62ch;
}

.page-faq .faq-note a {
  color: var(--mint-400);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-note a:hover,
.page-faq .faq-note a:focus-visible {
  color: var(--mint-200);
  border-color: var(--mint-200);
  outline: none;
}

/* ---------- 命令栏位置示意 ---------- */

.page-faq .cmd-map {
  display: block;
  width: 100%;
  height: auto;
  margin-top: 22px;
  padding: 6px;
  box-sizing: border-box;
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
}

/* ---------- 步骤列表 ---------- */

.page-faq .step-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .step-list__item {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 14px;
  align-items: start;
  padding: 15px 16px;
  background: var(--ink-700);
  border: 1px solid var(--line);
  border-radius: 12px;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .step-list__item:hover {
  border-color: var(--line-strong);
  background: var(--ink-800);
}

.page-faq .step-list__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.9;
  text-align: center;
  border-radius: 8px;
  color: var(--ink-950);
  background: var(--mint-400);
  font-variant-numeric: tabular-nums;
}

.page-faq .step-list__title {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--paper);
}

.page-faq .step-list__text {
  margin: 7px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mute);
}

/* ---------- 图片 ---------- */

.page-faq .figure {
  margin: 26px 0 0;
}

.page-faq .figure__caption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--mute);
}

/* ---------- 可展开问答 ---------- */

.page-faq .qa-list {
  margin-top: 22px;
  display: grid;
  gap: 12px;
}

.page-faq .qa-item {
  background: var(--ink-700);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color var(--dur) var(--ease);
}

.page-faq .qa-item[open] {
  border-color: var(--mint-400);
}

.page-faq .qa-item__q {
  position: relative;
  display: block;
  list-style: none;
  cursor: pointer;
  padding: 15px 46px 15px 18px;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--paper);
  transition: color var(--dur) var(--ease);
}

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

.page-faq .qa-item__q::marker {
  content: "";
}

.page-faq .qa-item__q::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--mint-400);
}

.page-faq .qa-item[open] .qa-item__q::after {
  content: "−";
  color: var(--mint-200);
}

.page-faq .qa-item__q:hover {
  color: var(--mint-200);
}

.page-faq .qa-item__q:focus-visible {
  outline: 1px solid var(--mint-200);
  outline-offset: -3px;
}

.page-faq .qa-item__a {
  padding: 0 18px 18px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mute);
}

.page-faq .qa-item__a p {
  margin: 0;
}

.page-faq .qa-item__a p + p {
  margin-top: 8px;
}

.page-faq .qa-item__concl {
  margin: 0 0 10px;
  padding: 10px 12px;
  background: var(--glass-cyan);
  border-radius: 8px;
  color: var(--mint-200);
  font-size: 14px;
  line-height: 1.7;
}

/* ---------- 常用入口清单 ---------- */

.page-faq .keep-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .keep-item {
  display: grid;
  gap: 7px;
  padding: 16px 18px;
  background: var(--ink-700);
  border: 1px solid var(--line);
  border-left: 2px solid var(--teal-700);
  border-radius: 0 12px 12px 0;
  transition: border-left-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .keep-item:hover {
  border-left-color: var(--mint-400);
  background: var(--ink-800);
}

.page-faq .keep-item__name {
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: 0.03em;
  line-height: 1.3;
  color: var(--paper);
}

.page-faq .keep-item__why {
  font-size: 14px;
  line-height: 1.72;
  color: var(--mute);
}

/* ---------- 联系信息块 ---------- */

.page-faq .contact-slip {
  margin-top: 22px;
  padding: 18px 18px 20px;
  display: grid;
  gap: 12px;
  background: rgba(255, 92, 57, 0.05);
  border: 1px dashed var(--ember-line);
  border-radius: var(--faq-radius);
}

.page-faq .contact-slip__row {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
  align-items: baseline;
}

.page-faq .contact-slip__label {
  flex: none;
  min-width: 68px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ember-300);
}

.page-faq .contact-slip__value {
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .contact-slip__value--mail {
  font-family: var(--font-mono);
  font-size: 14px;
  word-break: break-all;
}

/* ---------- 对照表 ---------- */

.page-faq .cmp-wrap {
  margin-top: 22px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
}

.page-faq .cmp-caption {
  padding: 12px 16px 0;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mute);
}

.page-faq .cmp-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-faq .cmp-table th,
.page-faq .cmp-table td {
  padding: 13px 16px;
  text-align: left;
  vertical-align: top;
  line-height: 1.68;
  border-bottom: 1px solid var(--line);
}

.page-faq .cmp-table thead th {
  background: var(--ink-700);
  font-family: var(--font-display);
  font-size: 15.5px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--paper);
  white-space: nowrap;
}

.page-faq .cmp-table tbody th {
  font-weight: 500;
  color: var(--mute);
  white-space: nowrap;
  background: rgba(53, 240, 200, 0.03);
}

.page-faq .cmp-table td {
  color: var(--paper);
}

.page-faq .cmp-table tbody tr:last-child th,
.page-faq .cmp-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-faq .cmp-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--mint-200);
  white-space: nowrap;
}

/* ---------- 结尾引导 ---------- */

.page-faq .faq-cta {
  padding: clamp(38px, 6vw, 72px) 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-cta__inner {
  display: grid;
  gap: 26px;
}

.page-faq .faq-cta__text h2 {
  font-family: var(--font-display);
  font-size: clamp(24px, 3vw, 36px);
  line-height: 1.2;
  letter-spacing: 0.02em;
  margin: 12px 0 0;
  color: var(--paper);
}

.page-faq .faq-cta__text p {
  margin: 14px 0 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mute);
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 桌面端 ---------- */

@media (min-width: 900px) {
  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--bar-h) + 24px);
    padding: 20px 18px;
    margin-bottom: 0;
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    overflow-x: visible;
  }

  .page-faq .faq-index__list a {
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0 8px 8px 0;
    padding: 8px 12px;
    white-space: normal;
  }

  .page-faq .faq-index__list a:hover,
  .page-faq .faq-index__list a:focus-visible {
    border-left-color: var(--mint-400);
  }

  .page-faq .faq-cta__inner {
    grid-template-columns: 5fr 4fr;
    align-items: center;
    gap: 40px;
  }

  .page-faq .faq-cta__actions {
    justify-content: flex-end;
  }
}

/* ---------- 大屏 ---------- */

@media (min-width: 1200px) {
  .page-faq .faq-hero h1 {
    max-width: 17em;
  }
}

/* ---------- 减少动效 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-faq .step-list__item,
  .page-faq .keep-item,
  .page-faq .qa-item,
  .page-faq .qa-item__q,
  .page-faq .faq-index__list a,
  .page-faq .faq-note a {
    transition: none;
  }
}