.page-faq {
  --faq-num-col: 52px;
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  padding-top: clamp(18px, 3vw, 30px);
}

.page-faq .faq-hero .tb-breadcrumb {
  margin-bottom: clamp(16px, 3vw, 28px);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  align-items: start;
}

.page-faq .faq-hero__lead {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
}

.page-faq .faq-hero__title {
  margin: 0;
  letter-spacing: -0.01em;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 6px;
}

.page-faq .faq-hero__panel {
  position: relative;
  border: 2px solid var(--line);
  background: var(--ink-700);
  box-shadow: var(--shadow-2);
  padding: 22px 20px 8px;
  min-width: 0;
}

.page-faq .faq-hero__panel::before {
  content: "";
  position: absolute;
  top: -2px;
  left: -2px;
  width: 92px;
  height: 4px;
  background: var(--cyan);
}

.page-faq .faq-hero__panel-title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-hero__pulse {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-hero__pulse-item {
  display: grid;
  grid-template-columns: minmax(58px, auto) 1fr;
  align-items: center;
  gap: 10px 16px;
  padding: 14px 0;
  border-top: 2px solid var(--line);
}

.page-faq .faq-hero__pulse-num {
  font-family: var(--font-mono);
  font-size: clamp(24px, 6vw, 34px);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
  letter-spacing: -0.02em;
}

.page-faq .faq-hero__pulse-label {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

/* ---------- 快速自查 ---------- */

.page-faq .faq-check__list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
}

.page-faq .faq-check__item {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "num title"
    ". text";
  gap: 8px 14px;
  border: 2px solid var(--line);
  background: var(--ink-700);
  box-shadow: var(--shadow-1);
  padding: 18px;
  min-width: 0;
  transition: transform 180ms var(--ease), border-color 180ms var(--ease), box-shadow 180ms var(--ease);
}

.page-faq .faq-check__item:hover,
.page-faq .faq-check__item:focus-within {
  transform: translateY(-2px);
  border-color: var(--cyan);
  box-shadow: var(--shadow-2);
}

.page-faq .faq-check__num {
  grid-area: num;
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .faq-check__title {
  grid-area: title;
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text);
}

.page-faq .faq-check__text {
  grid-area: text;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--muted);
}

/* ---------- 四步操作 ---------- */

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

.page-faq .faq-steps__figure .tb-media__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 2px solid var(--line);
  box-shadow: var(--shadow-2);
}

.page-faq .faq-steps__list {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
  align-items: start;
}

.page-faq .faq-steps__step {
  position: relative;
  border: 2px solid var(--line);
  background: var(--ink-700);
  box-shadow: var(--shadow-1);
  padding: 20px 18px;
  min-width: 0;
  transition: transform 180ms var(--ease), border-color 180ms var(--ease), box-shadow 180ms var(--ease);
}

.page-faq .faq-steps__step:hover,
.page-faq .faq-steps__step:focus-within {
  transform: translateY(-2px);
  border-color: var(--cyan);
  box-shadow: var(--shadow-2);
}

.page-faq .faq-steps__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(30px, 7vw, 40px);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
  margin-bottom: 12px;
}

.page-faq .faq-steps__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--text);
}

.page-faq .faq-steps__step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--muted);
}

.page-faq .faq-steps__pitfall {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 2px dashed var(--line);
  color: var(--orange);
  font-size: 13.5px;
  line-height: 1.6;
}

/* ---------- 更新与显示 ---------- */

.page-faq .faq-refresh__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  align-items: start;
}

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

.page-faq .faq-refresh__figure .tb-media__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 2px solid var(--line);
  box-shadow: var(--shadow-2);
}

.page-faq .faq-refresh__body {
  min-width: 0;
}

.page-faq .faq-refresh__list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 2px solid var(--line);
}

.page-faq .faq-refresh__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 16px 0;
  border-bottom: 2px solid var(--line);
}

.page-faq .faq-refresh__row p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--muted);
}

.page-faq .faq-refresh__row a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

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

/* ---------- 折叠排查条目 ---------- */

.page-faq .faq-fold {
  display: grid;
  gap: 14px;
  margin-top: 26px;
}

.page-faq .faq-fold__item {
  border: 2px solid var(--line);
  background: var(--ink-700);
  box-shadow: var(--shadow-1);
  min-width: 0;
  transition: border-color 180ms var(--ease), box-shadow 180ms var(--ease);
}

.page-faq .faq-fold__item:hover {
  box-shadow: var(--shadow-2);
}

.page-faq .faq-fold__item[open] {
  border-color: var(--cyan);
}

.page-faq .faq-fold__summary {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 10px 14px;
  padding: 18px;
  cursor: pointer;
  list-style: none;
  transition: background-color 180ms var(--ease);
}

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

.page-faq .faq-fold__summary::marker {
  content: "";
}

.page-faq .faq-fold__summary:focus-visible {
  outline: 2px solid var(--violet);
  outline-offset: 4px;
}

.page-faq .faq-fold__num {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  line-height: 1;
  color: var(--muted);
  transition: color 180ms var(--ease);
}

.page-faq .faq-fold__item[open] .faq-fold__num {
  color: var(--cyan);
}

.page-faq .faq-fold__q {
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--text);
  min-width: 0;
}

.page-faq .faq-fold__mark {
  position: relative;
  width: 18px;
  height: 18px;
  flex: none;
}

.page-faq .faq-fold__mark::before,
.page-faq .faq-fold__mark::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform 180ms var(--ease);
}

.page-faq .faq-fold__mark::before {
  left: 0;
  top: 8px;
  width: 18px;
  height: 2px;
}

.page-faq .faq-fold__mark::after {
  left: 8px;
  top: 0;
  width: 2px;
  height: 18px;
}

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

.page-faq .faq-fold__body {
  margin: 0 18px;
  padding: 16px 0 20px;
  border-top: 2px dashed var(--line);
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.7;
}

.page-faq .faq-fold__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: faqstep;
  display: grid;
  gap: 10px;
  max-width: 62ch;
}

.page-faq .faq-fold__steps li {
  counter-increment: faqstep;
  position: relative;
  padding-left: 32px;
}

.page-faq .faq-fold__steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--cyan);
}

.page-faq .faq-fold__steps a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

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

/* ---------- 联系路径 ---------- */

.page-faq .faq-contact__panel {
  border: 2px solid var(--line);
  background: var(--ink-800);
  box-shadow: var(--shadow-2);
  padding: clamp(22px, 4vw, 40px);
}

.page-faq .faq-contact__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  align-items: start;
}

.page-faq .faq-contact__lead {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
}

.page-faq .faq-contact__lead .tb-display--sm {
  margin: 0;
}

.page-faq .faq-contact__lead .tb-prose {
  margin: 0;
}

.page-faq .faq-contact__lead .tb-btn {
  align-self: flex-start;
  margin-top: 6px;
}

.page-faq .faq-contact__side {
  border: 2px solid var(--line);
  background: var(--ink-700);
  padding: 18px;
  min-width: 0;
}

.page-faq .faq-contact__side-title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-contact__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-contact__list li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--text);
}

.page-faq .faq-contact__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 10px;
  height: 2px;
  background: var(--cyan);
}

/* ---------- 响应式 ---------- */

@media (min-width: 760px) {
  .page-faq .faq-check__list {
    grid-template-columns: repeat(6, 1fr);
  }

  .page-faq .faq-check__item {
    grid-column: span 2;
  }

  .page-faq .faq-check__item:nth-child(4),
  .page-faq .faq-check__item:nth-child(5) {
    grid-column: span 3;
  }

  .page-faq .faq-refresh__row {
    grid-template-columns: 168px 1fr;
    align-items: baseline;
    gap: 18px;
  }

  .page-faq .faq-fold__body {
    padding-left: 52px;
    max-width: none;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: 7fr 5fr;
    gap: 36px;
  }

  .page-faq .faq-steps__list {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-faq .faq-steps__step:nth-child(2),
  .page-faq .faq-steps__step:nth-child(4) {
    margin-top: 26px;
  }

  .page-faq .faq-refresh__grid {
    grid-template-columns: 5fr 7fr;
    gap: 36px;
  }

  .page-faq .faq-fold__item:nth-child(even) {
    margin-left: 56px;
  }

  .page-faq .faq-contact__inner {
    grid-template-columns: 7fr 5fr;
    gap: 36px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-check__item,
  .page-faq .faq-steps__step,
  .page-faq .faq-fold__item,
  .page-faq .faq-fold__num,
  .page-faq .faq-fold__mark::before,
  .page-faq .faq-fold__mark::after {
    transition-duration: 0.001ms;
  }

  .page-faq .faq-check__item:hover,
  .page-faq .faq-check__item:focus-within,
  .page-faq .faq-steps__step:hover,
  .page-faq .faq-steps__step:focus-within {
    transform: none;
  }
}