.page-faq {
  --faq-gap: clamp(1.5rem, 4vw, 2.5rem);
  --faq-serif: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  display: block;
  background: var(--arena-deep);
  color: var(--cream);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  overflow-x: hidden;
}

.page-faq * {
  box-sizing: border-box;
}

.page-faq a {
  color: var(--neon);
  text-decoration: none;
  transition: color .2s var(--ease);
}

.page-faq a:hover {
  color: var(--volt);
}

.page-faq a:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 3px;
  border-radius: var(--radius);
}

.page-faq .faq-tag {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  margin: 0 0 .85rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--neon);
  font-weight: 500;
}

.page-faq .faq-tag::before {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--neon);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding: calc(var(--header-stack) + 2rem) 0 clamp(2.5rem, 7vw, 4.5rem);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(53, 240, 200, .16), transparent 58%),
    radial-gradient(90% 70% at 0% 100%, rgba(255, 77, 46, .14), transparent 62%),
    linear-gradient(180deg, var(--arena) 0%, var(--arena-deep) 100%);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: var(--faq-gap);
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
}

.page-faq .faq-hero h1 {
  margin: 0 0 1.1rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.9rem, 7vw, 4rem);
  line-height: 1.05;
  letter-spacing: -.02em;
  color: var(--cream);
}

.page-faq .faq-hero__intro {
  margin: 0;
  max-width: 40em;
  color: var(--cream-dim);
  font-size: 1rem;
  line-height: 1.8;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: 1.6rem;
}

.page-faq .faq-hero__panel {
  padding: clamp(1.25rem, 3vw, 1.75rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-faq .faq-hero__panel-title {
  margin: 0 0 1.1rem;
  font-family: var(--font-mono);
  font-size: .74rem;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--steel);
}

.page-faq .faq-lamps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .9rem;
}

.page-faq .faq-lamp {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: .15rem .7rem;
  padding-bottom: .9rem;
  border-bottom: 1px dashed var(--line-soft);
}

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

.page-faq .faq-lamp__label {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: .02em;
  color: var(--cream);
}

.page-faq .faq-lamp__desc {
  grid-column: 2;
  font-size: .84rem;
  line-height: 1.6;
  color: var(--steel);
}

.page-faq .faq-hero__tip {
  margin: 1.2rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--line-soft);
  font-size: .84rem;
  line-height: 1.7;
  color: var(--volt);
}

/* ---------- 通用区块 ---------- */

.page-faq .faq-block {
  padding: clamp(3rem, 8vw, 5.5rem) 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-block--log {
  background:
    linear-gradient(180deg, rgba(20, 60, 52, .55) 0%, rgba(7, 28, 23, 0) 100%);
}

.page-faq .block-head {
  max-width: 46rem;
  margin-bottom: clamp(1.75rem, 4vw, 2.75rem);
}

.page-faq .block-head h2 {
  margin: 0 0 .9rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.55rem, 4.6vw, 2.75rem);
  line-height: 1.12;
  letter-spacing: -.01em;
  color: var(--cream);
}

.page-faq .block-head p {
  margin: 0;
  max-width: 38em;
  color: var(--steel);
  line-height: 1.8;
}

/* ---------- 分栏 ---------- */

.page-faq .faq-split {
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .faq-split__main,
.page-faq .faq-split__media {
  min-width: 0;
}

/* ---------- 步骤轴 ---------- */

.page-faq .steps {
  border-top: 1px solid var(--line);
}

.page-faq .step {
  border-bottom: 1px solid var(--line-soft);
  transition: background-color .25s var(--ease);
}

.page-faq .step[open] {
  background: linear-gradient(90deg, rgba(53, 240, 200, .07), rgba(53, 240, 200, 0) 62%);
}

.page-faq .step__bar {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: .9rem;
  padding: 1.1rem .25rem;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .step__bar::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 1.3rem;
  line-height: 1;
  color: var(--steel);
}

.page-faq .step[open] .step__bar::after {
  content: "–";
  color: var(--neon);
}

.page-faq .step__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.5rem, 4.5vw, 2.5rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.04em;
  color: var(--neon);
}

.page-faq .step[open] .step__num {
  color: var(--blaze);
}

.page-faq .step__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.05rem, 2.6vw, 1.3rem);
  letter-spacing: .01em;
  color: var(--cream);
}

.page-faq .step__panel {
  padding: 0 .25rem 1.4rem;
  color: var(--cream-dim);
}

.page-faq .step__panel p {
  margin: 0;
  max-width: 40em;
  font-size: .95rem;
  line-height: 1.8;
}

/* ---------- 全宽提示条 ---------- */

.page-faq .faq-banner {
  display: flex;
  align-items: flex-start;
  gap: .9rem;
  margin-top: 1.75rem;
  padding: 1.1rem 1.25rem;
  border-radius: var(--radius);
  background: linear-gradient(100deg, var(--blaze) 0%, #d13a1e 100%);
  color: var(--white);
}

.page-faq .faq-banner__mark {
  flex: none;
  display: grid;
  place-items: center;
  width: 1.6rem;
  height: 1.6rem;
  margin-top: .15rem;
  border-radius: 50%;
  background: var(--white);
  color: var(--blaze);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: .95rem;
  line-height: 1;
}

.page-faq .faq-banner p {
  margin: 0;
  font-size: .95rem;
  font-weight: 600;
  line-height: 1.7;
}

/* ---------- 图片 ---------- */

.page-faq .faq-figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel);
}

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

.page-faq .faq-figure figcaption {
  padding: .85rem 1rem;
  border-top: 1px solid var(--line-soft);
  font-size: .82rem;
  line-height: 1.7;
  color: var(--steel);
}

/* ---------- 卡顿排查列表 ---------- */

.page-faq .trouble-list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: tl;
  border-top: 1px solid var(--line);
}

.page-faq .trouble-list > li {
  display: grid;
  grid-template-columns: 2.6rem minmax(0, 1fr);
  gap: .2rem .9rem;
  padding: 1.15rem 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .trouble-list > li::before {
  counter-increment: tl;
  content: counter(tl, decimal-leading-zero);
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--blaze);
}

.page-faq .trouble-list strong {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.02rem;
  color: var(--cream);
}

.page-faq .trouble-list p {
  grid-column: 2;
  margin: .35rem 0 0;
  font-size: .92rem;
  line-height: 1.8;
  color: var(--steel);
}

/* ---------- 使用记录对照表 ---------- */

.page-faq .log-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--arena-mid);
  -webkit-overflow-scrolling: touch;
}

.page-faq .log-table {
  width: 100%;
  min-width: 700px;
  border-collapse: collapse;
  font-size: .9rem;
}

.page-faq .log-table caption {
  caption-side: top;
  padding: .85rem 1rem;
  text-align: left;
  font-size: .78rem;
  letter-spacing: .08em;
  color: var(--steel);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .log-table th {
  padding: .8rem 1rem;
  text-align: left;
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: .7rem;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--neon);
  border-bottom: 1px solid var(--line);
}

.page-faq .log-table td {
  padding: .95rem 1rem;
  border-bottom: 1px solid var(--line-soft);
  color: var(--cream-dim);
  vertical-align: middle;
}

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

.page-faq .log-table tbody tr {
  transition: background-color .2s var(--ease), box-shadow .2s var(--ease);
}

.page-faq .log-table tbody tr:hover,
.page-faq .log-table tbody tr:focus-within {
  background: rgba(53, 240, 200, .08);
  box-shadow: inset 3px 0 0 var(--neon);
}

.page-faq .mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--cream);
  letter-spacing: -.01em;
}

.page-faq .bar {
  display: block;
  width: 88px;
  height: 6px;
  margin-top: .4rem;
  border-radius: 99px;
  overflow: hidden;
  background: rgba(155, 183, 176, .22);
}

.page-faq .bar__fill {
  display: block;
  height: 100%;
  width: var(--fill, 50%);
  border-radius: 99px;
  background: linear-gradient(90deg, var(--volt), var(--blaze));
}

.page-faq .log-result {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
}

.page-faq .log-notes {
  list-style: none;
  margin: var(--faq-gap) 0 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.page-faq .log-notes li {
  padding-left: 1rem;
  border-left: 2px solid var(--line);
  font-size: .88rem;
  line-height: 1.8;
  color: var(--steel);
}

.page-faq .log-notes strong {
  color: var(--volt);
  font-weight: 700;
}

/* ---------- 阵容与数据 ---------- */

.page-faq .lineup-grid {
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .lineup-card {
  padding: clamp(1.25rem, 3vw, 1.75rem);
  border-radius: var(--radius);
}

.page-faq .lineup-card h3 {
  margin: 0 0 .7rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.2rem;
  line-height: 1.3;
  letter-spacing: .01em;
}

.page-faq .lineup-card p {
  margin: 0;
  max-width: 34em;
  font-size: .92rem;
  line-height: 1.8;
}

.page-faq .lineup-card__figure {
  display: flex !important;
  align-items: baseline;
  gap: .5rem;
  margin: 0 0 .5rem !important;
}

.page-faq .lineup-card__figure .figure {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(2.6rem, 9vw, 3.8rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.05em;
}

.page-faq .lineup-card__unit {
  font-family: var(--font-mono);
  font-size: .85rem;
  letter-spacing: .14em;
  color: var(--ink);
  opacity: .7;
}

.page-faq .lineup-card--dark {
  background: var(--panel);
  color: var(--cream);
  border: 1px solid var(--line);
}

.page-faq .lineup-metrics {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
  margin: 1.1rem 0 0;
  padding: 0;
}

.page-faq .lineup-metrics li {
  padding: .3rem .7rem;
  border: 1px solid var(--line);
  border-radius: 99px;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .08em;
  color: var(--neon);
}

.page-faq .lineup-fixes {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .85rem;
}

.page-faq .lineup-fixes li {
  position: relative;
  padding-left: 1rem;
  font-size: .9rem;
  line-height: 1.75;
  color: var(--cream-dim);
}

.page-faq .lineup-fixes li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--volt);
}

.page-faq .lineup-fixes strong {
  color: var(--cream);
  font-weight: 700;
}

/* ---------- 工单与联系 ---------- */

.page-faq .ticket-grid {
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .ticket-card {
  padding: clamp(1.25rem, 3vw, 1.9rem);
  border-radius: var(--radius);
}

.page-faq .ticket-card h3 {
  margin: 0 0 .9rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: .01em;
}

.page-faq .ticket-steps {
  margin: 0 0 1.4rem;
  padding-left: 1.2rem;
  display: grid;
  gap: .6rem;
  font-size: .92rem;
  line-height: 1.75;
}

.page-faq .ticket-steps li::marker {
  font-family: var(--font-mono);
  color: var(--blaze);
}

.page-faq .ticket-contact {
  margin: 0;
  font-size: .92rem;
  line-height: 1.7;
}

.page-faq .ticket-contact dt {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--steel);
}

.page-faq .ticket-contact dd {
  margin: .2rem 0 1rem;
  color: var(--cream);
  word-break: break-word;
}

.page-faq .ticket-contact dd:last-of-type {
  margin-bottom: 0;
}

.page-faq .ticket-note {
  margin: 1.2rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--line-soft);
  font-size: .84rem;
  line-height: 1.75;
  color: var(--steel);
}

.page-faq .ticket-more {
  margin: var(--faq-gap) 0 0;
  max-width: 46em;
  font-size: .88rem;
  line-height: 1.9;
  color: var(--steel);
}

/* ---------- 桌面端 ---------- */

@media (min-width: 760px) {
  .page-faq .faq-block-head {
    margin-bottom: 3rem;
  }

  .page-faq .step__bar {
    grid-template-columns: 5.5rem minmax(0, 1fr) auto;
    padding: 1.35rem .25rem;
  }

  .page-faq .step__panel {
    padding-left: 6.65rem;
    padding-bottom: 1.7rem;
  }

  .page-faq .lineup-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }

  .page-faq .lineup-card:first-child {
    grid-column: 1 / -1;
  }

  .page-faq .ticket-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .95fr);
    align-items: start;
  }

  .page-faq .log-notes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 940px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(300px, 1fr);
    align-items: start;
    gap: 3.5rem;
  }

  .page-faq .faq-hero__panel {
    margin-top: 1.4rem;
  }

  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    align-items: start;
    gap: 3.25rem;
  }

  .page-faq .faq-split--flip {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.28fr);
  }

  .page-faq .faq-split--flip .faq-split__media {
    order: -1;
  }

  .page-faq .faq-split__media {
    position: sticky;
    top: calc(var(--header-stack) + 1.5rem);
  }

  .page-faq .lineup-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  }

  .page-faq .lineup-card:first-child {
    grid-column: auto;
  }
}
<<<END>>>

.page-faq {
  --fill: currentColor;
}