.page-faq {
  --faq-panel: rgba(18, 41, 79, .55);
  --faq-bronze-line: rgba(46, 139, 139, .34);
  --faq-gap: 26px;
}

/* ---------- 首屏 ---------- */
.page-faq .tut-hero {
  position: relative;
  padding: 40px 0 34px;
  border-bottom: 1px solid var(--line-slate);
  overflow: hidden;
}

.page-faq .tut-hero::after {
  content: "";
  position: absolute;
  right: -140px;
  top: -120px;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(46, 139, 139, .26), rgba(11, 27, 58, 0) 68%);
  pointer-events: none;
}

.page-faq .tut-hero .eyebrow {
  color: var(--bronze);
}

.page-faq .tut-hero .h-display {
  margin: 10px 0 0;
  max-width: 14em;
}

.page-faq .tut-hero__lede {
  margin-top: 18px;
  max-width: 36em;
  color: var(--text-body);
}

.page-faq .tut-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 32px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .tut-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 13px;
  color: var(--slate);
}

.page-faq .tut-hero__facts b {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 500;
  line-height: 1;
  color: var(--gold-b);
}

/* ---------- 流程 ---------- */
.page-faq .tut-flow__lede {
  margin-top: 12px;
  max-width: 40em;
  color: var(--text-body);
  font-size: 15px;
  line-height: 1.78;
}

.page-faq .tut-flow__viz {
  position: relative;
  margin-top: var(--faq-gap);
  padding: 30px 16px 26px;
  border: 1px solid var(--faq-bronze-line);
  border-radius: 4px;
  background: linear-gradient(180deg, rgba(46, 139, 139, .12), rgba(11, 27, 58, 0) 72%);
  overflow: hidden;
}

.page-faq .tut-flow__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .14;
  pointer-events: none;
}

.page-faq .tut-flow__nodes {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .tut-flow__nodes li {
  position: relative;
  display: flex;
  justify-content: center;
  min-width: 0;
}

.page-faq .tut-flow__nodes a {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 6px 8px;
  border-radius: 4px;
  color: inherit;
  text-decoration: none;
}

.page-faq .tut-flow__no {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: .06em;
  color: var(--gold-b);
  background: radial-gradient(circle at 34% 28%, rgba(46, 139, 139, .55), rgba(11, 27, 58, .92) 72%);
  border: 1px solid var(--line-gold);
  box-shadow: 0 0 0 4px rgba(11, 27, 58, .6);
  transition: border-color var(--ease), box-shadow var(--ease);
}

.page-faq .tut-flow__nodes a:hover .tut-flow__no,
.page-faq .tut-flow__nodes a:focus-visible .tut-flow__no {
  border-color: var(--gold-b);
  box-shadow: 0 0 0 4px rgba(11, 27, 58, .6), 0 0 18px rgba(245, 215, 110, .42);
}

.page-faq .tut-flow__nodes a:focus-visible {
  outline: 2px solid var(--cinnabar);
  outline-offset: 2px;
}

.page-faq .tut-flow__name {
  font-family: var(--font-display);
  font-size: 17px;
  letter-spacing: .04em;
  color: var(--paper);
  text-align: center;
}

@media (min-width: 760px) {
  .page-faq .tut-flow__nodes {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .tut-flow__nodes li:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 33px;
    left: calc(50% + 38px);
    width: calc(100% - 76px);
    height: 1px;
    background: linear-gradient(90deg, var(--gold-a), var(--gold-b));
    opacity: .5;
  }
}

.page-faq .tut-flow__steps {
  margin: var(--faq-gap) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-slate);
}

.page-faq .tut-step {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 14px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line-slate);
  scroll-margin-top: calc(var(--bar-h) + 28px);
}

@media (min-width: 700px) {
  .page-faq .tut-step {
    grid-template-columns: 84px minmax(0, 1fr);
    gap: 28px;
    padding: 28px 0;
  }
}

.page-faq .tut-step__no {
  font-family: var(--font-mono);
  font-size: 28px;
  line-height: 1;
  color: var(--gold-a);
  letter-spacing: .04em;
}

@media (min-width: 700px) {
  .page-faq .tut-step__no {
    font-size: 36px;
  }
}

.page-faq .tut-step__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: .03em;
  color: var(--paper);
}

.page-faq .tut-step__meta {
  display: grid;
  gap: 8px;
  margin: 14px 0 0;
}

.page-faq .tut-step__meta > div {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 14px;
}

@media (min-width: 700px) {
  .page-faq .tut-step__meta > div {
    grid-template-columns: 76px minmax(0, 1fr);
  }
}

.page-faq .tut-step__meta dt {
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--slate);
}

.page-faq .tut-step__meta dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.76;
  color: var(--text-body);
}

/* ---------- 问答 + 速查表双栏 ---------- */
.page-faq .tut-duo__grid {
  display: grid;
  gap: 34px;
}

@media (min-width: 1000px) {
  .page-faq .tut-duo__grid {
    grid-template-columns: minmax(0, 1fr) 400px;
    gap: 46px;
    align-items: start;
  }
}

.page-faq .tut-qa,
.page-faq .tut-lookup {
  min-width: 0;
}

.page-faq .tut-qa__lede {
  margin-top: 12px;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text-body);
}

.page-faq .tut-qa__list {
  margin-top: 22px;
  border-top: 1px solid var(--line-slate);
}

.page-faq .qa {
  position: relative;
  border-bottom: 1px solid var(--line-slate);
}

.page-faq .qa::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--gold-a), var(--gold-b));
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--ease);
}

.page-faq .qa[open]::before,
.page-faq .qa:hover::before {
  transform: scaleY(1);
}

.page-faq .qa__q {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 16px 34px 16px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  line-height: 1.6;
  color: var(--paper);
  transition: color var(--ease);
}

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

.page-faq .qa__q::after {
  content: "+";
  position: absolute;
  right: 10px;
  top: 15px;
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1;
  color: var(--bronze);
  transition: color var(--ease);
}

.page-faq .qa[open] .qa__q::after {
  content: "\2013";
  color: var(--gold-b);
}

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

.page-faq .qa__idx {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--slate);
}

.page-faq .qa__a {
  padding: 0 24px 20px 44px;
}

.page-faq .qa__a p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-body);
}

/* 速查表 */
.page-faq .tut-lookup__inner {
  padding: 22px 16px 24px;
  border: 1px solid var(--line-gold-soft);
  border-radius: 4px;
  background: linear-gradient(180deg, rgba(18, 41, 79, .92), rgba(11, 27, 58, .72));
  box-shadow: var(--shadow-card);
}

@media (min-width: 1000px) {
  .page-faq .tut-lookup {
    position: sticky;
    top: calc(var(--bar-h) + 24px);
  }
}

.page-faq .tut-lookup .eyebrow {
  color: var(--bronze);
}

.page-faq .tut-lookup__lede {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--text-body);
}

.page-faq .tut-lookup__banner {
  margin: 18px 0 4px;
  border-radius: 3px;
  overflow: hidden;
  border: 1px solid var(--line-gold-soft);
}

.page-faq .tut-lookup__banner img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  opacity: .8;
}

.page-faq .tut-lookup__scroll {
  margin-top: 14px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .tut-table {
  width: 100%;
  min-width: 336px;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 11px;
}

.page-faq .tut-table__cap {
  padding-bottom: 8px;
  text-align: left;
  font-size: 10px;
  letter-spacing: .22em;
  color: var(--slate);
}

.page-faq .tut-table th,
.page-faq .tut-table td {
  padding: 9px 7px;
  text-align: left;
  vertical-align: top;
  line-height: 1.5;
  border-bottom: 1px solid var(--line-slate);
  color: var(--text-body);
}

.page-faq .tut-table thead th {
  background: rgba(46, 139, 139, .3);
  border-bottom: 1px solid var(--line-gold);
  color: var(--paper);
  font-weight: 500;
  letter-spacing: .04em;
}

.page-faq .tut-table tbody th {
  font-weight: 500;
  color: var(--gold-b);
  white-space: nowrap;
}

.page-faq .tut-table tbody tr:hover td,
.page-faq .tut-table tbody tr:hover th {
  background: rgba(201, 162, 39, .09);
}

.page-faq .tut-lookup__note {
  margin: 14px 0 18px;
  font-size: 12px;
  line-height: 1.7;
}

/* ---------- 排查 ---------- */
.page-faq .tut-check__list {
  display: grid;
  gap: 14px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .tut-check__list li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 18px 20px;
  border: 1px solid var(--line-slate);
  border-left: 2px solid var(--bronze);
  border-radius: 3px;
  background: var(--faq-panel);
}

.page-faq .tut-check__dot {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--ink-deep);
  background: linear-gradient(140deg, var(--gold-b), var(--gold-a));
}

.page-faq .tut-check__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: .03em;
  color: var(--paper);
}

.page-faq .tut-check__list p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text-body);
}

.page-faq .tut-check__tail {
  margin-top: 18px;
  font-size: 13px;
  line-height: 1.7;
}

.page-faq .tut-check__tail a {
  color: var(--gold-b);
  text-underline-offset: 3px;
}

/* ---------- 渠道 ---------- */
.page-faq .tut-contact__grid {
  display: grid;
  gap: 16px;
  margin-top: 24px;
}

@media (min-width: 760px) {
  .page-faq .tut-contact__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-faq .tut-contact__item {
  padding: 18px;
  border: 1px solid var(--line-slate);
  border-top: 2px solid var(--faq-bronze-line);
  border-radius: 3px;
  background: rgba(18, 41, 79, .42);
}

.page-faq .tut-contact__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--bronze);
}

.page-faq .tut-contact__value {
  margin: 0 0 8px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .tut-contact__item .muted {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.7;
}

.page-faq .tut-contact .btn {
  margin-top: 24px;
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa::before,
  .page-faq .tut-flow__no {
    transition: none;
  }
}
</main>