/* ===== 使用指南页 · 作用域 .page-faq ===== */
.page-faq {
  --faq-line: 2px solid var(--frame);
  --faq-gap: clamp(16px, 3.6vw, 32px);
  display: block;
}

.page-faq > .wrap {
  padding-top: clamp(18px, 4vw, 40px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  display: grid;
  gap: 18px;
  padding: clamp(22px, 5vw, 48px) 0 clamp(28px, 6vw, 60px);
  border-bottom: var(--faq-line);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -2px;
  width: clamp(64px, 20%, 200px);
  height: 4px;
  background: var(--cyan);
}

.page-faq .faq-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-hero__title {
  margin: 0;
  max-width: 15ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 8.6vw, 66px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-faq .faq-hero__title em {
  display: block;
  font-style: normal;
  color: var(--cyan);
}

.page-faq .faq-hero__lede {
  margin: 0;
  max-width: 64ch;
  color: var(--ink-2);
}

.page-faq .faq-hero__jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 4px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__jump a {
  display: inline-block;
  padding: 9px 14px;
  border: 2px solid var(--frame);
  background: var(--panel);
  color: var(--ink);
  font-size: 13px;
  letter-spacing: 0.06em;
  text-decoration: none;
  transition: border-color 220ms var(--ease), color 220ms var(--ease), background-color 220ms var(--ease);
}

.page-faq .faq-hero__jump a:hover,
.page-faq .faq-hero__jump a:focus-visible {
  border-color: var(--cyan);
  background: var(--bg-deep);
  color: var(--cyan);
}

/* ---------- 三步图解 ---------- */
.page-faq .faq-steps {
  display: grid;
  gap: clamp(22px, 5vw, 44px);
}

.page-faq .faq-steps__media {
  margin: 0;
  border: 2px solid var(--frame);
  background: var(--panel);
  box-shadow: var(--shadow-hard);
  transform: rotate(-1.1deg);
  overflow: hidden;
}

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

.page-faq .faq-steps__body {
  display: grid;
  gap: 14px;
}

.page-faq .step-list {
  display: grid;
  gap: 12px;
  margin: 6px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .step {
  position: relative;
  padding: 16px 16px 16px 70px;
  border: 2px solid var(--frame);
  background: var(--panel);
  transition: border-color 220ms var(--ease), transform 220ms var(--ease);
}

.page-faq .step:hover {
  border-color: var(--cyan);
  transform: translateX(4px);
}

.page-faq .step__num {
  position: absolute;
  left: 16px;
  top: 18px;
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--orange);
}

.page-faq .step__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  line-height: 1.35;
  color: var(--ink);
}

.page-faq .step__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink);
}

.page-faq .step__note {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-2);
  border-left: 2px solid var(--mist);
  padding-left: 10px;
}

/* ---------- 问答组 ---------- */
.page-faq .faq-groups {
  display: grid;
  gap: 12px;
  margin-top: clamp(18px, 4vw, 34px);
}

.page-faq .faq-group {
  border: 2px solid var(--frame);
  background: var(--panel);
  transition: border-color 220ms var(--ease), box-shadow 220ms var(--ease);
}

.page-faq .faq-group:hover {
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-group:nth-child(even) {
  transform: rotate(0.4deg);
}

.page-faq .faq-group:nth-child(odd) {
  transform: rotate(-0.4deg);
}

.page-faq .faq-group__trigger {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  margin: 0;
  padding: 16px 16px;
  border: 0;
  border-left: 6px solid var(--frame);
  background: transparent;
  color: var(--ink);
  text-align: left;
  cursor: pointer;
  font-family: inherit;
  transition: border-color 220ms var(--ease), background-color 220ms var(--ease);
}

.page-faq .faq-group__trigger:hover {
  border-left-color: var(--orange);
}

.page-faq .faq-group__trigger[aria-expanded="true"] {
  border-left-color: var(--cyan);
  background: rgba(111, 242, 216, 0.06);
}

.page-faq .faq-group__label {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border: 2px solid var(--frame);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-2);
}

.page-faq .faq-group__trigger[aria-expanded="true"] .faq-group__label {
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-faq .faq-group__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(19px, 4.4vw, 27px);
  line-height: 1.16;
  letter-spacing: -0.01em;
}

.page-faq .faq-group__trigger[aria-expanded="true"] .faq-group__title {
  color: var(--cyan);
}

.page-faq .faq-group__count {
  margin-left: auto;
  flex: none;
  padding: 3px 8px;
  border: 1px solid var(--frame);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--ink-2);
  white-space: nowrap;
}

.page-faq .faq-group__chev {
  flex: none;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--ink-2);
  border-bottom: 2px solid var(--ink-2);
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform 220ms var(--ease), border-color 220ms var(--ease);
}

.page-faq .faq-group__trigger[aria-expanded="true"] .faq-group__chev {
  border-color: var(--cyan);
  transform: rotate(225deg) translate(-2px, -2px);
}

.page-faq .faq-group__panel {
  padding: 4px 16px 20px;
  display: grid;
  gap: 0;
}

.page-faq .qa {
  padding: 14px 0;
  border-top: 1px solid var(--frame);
}

.page-faq .qa:first-child {
  border-top: 2px solid var(--mist);
}

.page-faq .qa__q {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.45;
  color: var(--ink);
}

.page-faq .qa__a {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-2);
}

.page-faq .qa__note {
  margin: 8px 0 0;
  max-width: 62ch;
  padding-left: 10px;
  border-left: 2px solid var(--clay);
  font-size: 13px;
  line-height: 1.65;
  color: var(--ink-2);
}

/* ---------- 字段速查表 ---------- */
.page-faq .field-table__scroll {
  margin-top: clamp(16px, 3.5vw, 28px);
  border: 2px solid var(--frame);
  background: var(--panel);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .field-table {
  width: 100%;
  min-width: 540px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-faq .field-table th,
.page-faq .field-table td {
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
  line-height: 1.65;
  border-bottom: 1px solid var(--frame);
}

.page-faq .field-table thead th {
  background: var(--mist);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  white-space: nowrap;
}

.page-faq .field-table tbody tr {
  transition: background-color 200ms var(--ease);
}

.page-faq .field-table tbody tr:hover,
.page-faq .field-table tbody tr:focus-within {
  background: rgba(111, 242, 216, 0.08);
}

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

.page-faq .field-key {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
  background: transparent;
  border-bottom: 2px solid var(--cyan);
  padding-bottom: 1px;
}

.page-faq .field-table td {
  color: var(--ink-2);
}

.page-faq .field-table td:last-child {
  white-space: nowrap;
}

.page-faq .fields-footnote,
.page-faq .note {
  margin-top: 14px;
  max-width: 66ch;
}

/* ---------- 显示异常排查 ---------- */
.page-faq .faq-trouble__media {
  margin: clamp(18px, 4vw, 30px) 0 clamp(18px, 4vw, 28px);
  transform: rotate(1.1deg);
}

.page-faq .check-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: var(--faq-line);
}

.page-faq .check {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--frame);
  transition: padding-left 220ms var(--ease), border-color 220ms var(--ease);
}

.page-faq .check:hover {
  padding-left: 12px;
  border-bottom-color: var(--cyan);
}

.page-faq .check__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  line-height: 1.4;
  color: var(--ink);
}

.page-faq .check__desc {
  margin: 0;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-2);
}

/* ---------- 仍需帮助 ---------- */
.page-faq .faq-help__card {
  display: grid;
  gap: 22px;
  padding: clamp(20px, 4.5vw, 40px);
  border: 2px solid var(--frame);
  background: var(--panel);
  box-shadow: var(--shadow-hard);
  transform: rotate(-0.6deg);
}

.page-faq .faq-help__main {
  display: grid;
  gap: 12px;
}

.page-faq .faq-help__main p {
  margin: 0;
  max-width: 62ch;
  color: var(--ink-2);
}

.page-faq .faq-help__main .note {
  margin: 0;
  padding-left: 10px;
  border-left: 2px solid var(--clay);
  font-size: 13px;
}

.page-faq .faq-help__meta {
  display: grid;
  gap: 0;
  margin: 0;
  border-top: 2px solid var(--mist);
}

.page-faq .faq-help__row {
  display: grid;
  gap: 4px;
  padding: 12px 0;
  border-bottom: 1px solid var(--frame);
}

.page-faq .faq-help__row dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.page-faq .faq-help__row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink);
  overflow-wrap: anywhere;
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-group__trigger {
    padding: 18px 22px;
  }

  .page-faq .faq-group__panel {
    padding: 4px 22px 22px;
  }

  .page-faq .faq-help__row {
    grid-template-columns: 120px minmax(0, 1fr);
    align-items: baseline;
    gap: 14px;
  }
}

@media (min-width: 860px) {
  .page-faq .faq-steps {
    grid-template-columns: minmax(220px, 300px) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .step {
    padding: 20px 22px 20px 82px;
  }

  .page-faq .step__num {
    left: 22px;
    top: 22px;
    font-size: 26px;
  }

  .page-faq .qa {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    padding: 18px 0;
  }

  .page-faq .faq-help__card {
    grid-template-columns: minmax(0, 1fr) minmax(260px, 340px);
    align-items: start;
  }

  .page-faq .faq-help__links {
    grid-column: 1 / -1;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-faq .check-list {
    border-top: 0;
  }

  .page-faq .check {
    grid-template-columns: minmax(180px, 240px) minmax(0, 1fr);
    align-items: baseline;
    border-top: var(--faq-line);
    border-bottom: 0;
  }

  .page-faq .check:last-child {
    border-bottom: var(--faq-line);
  }

  .page-faq .check__title {
    padding-right: 18px;
  }

  .page-faq .check__desc {
    border-left: 1px solid var(--frame);
    padding-left: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-group,
  .page-faq .faq-steps__media,
  .page-faq .faq-trouble__media,
  .page-faq .faq-help__card {
    transform: none;
  }

  .page-faq .step:hover,
  .page-faq .check:hover {
    transform: none;
    padding-left: 0;
  }
}