.page-faq {
  --faq-pad-y: clamp(52px, 7.5vw, 96px);
  --faq-hair: var(--line);
  position: relative;
  isolation: isolate;
  color: var(--text);
  overflow-x: clip;
}

.page-faq::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 820px;
  background-image:
    linear-gradient(to right, rgba(28, 58, 97, 0.34) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(28, 58, 97, 0.34) 1px, transparent 1px);
  background-size: var(--grid) var(--grid);
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, rgba(0, 0, 0, 0.2) 68%, transparent 100%);
  mask-image: linear-gradient(to bottom, #000 0%, rgba(0, 0, 0, 0.2) 68%, transparent 100%);
  pointer-events: none;
  z-index: 0;
}

.page-faq > * {
  position: relative;
  z-index: 1;
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumbs {
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-faq .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--text-2);
}

.page-faq .breadcrumbs li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}

.page-faq .breadcrumbs a {
  color: var(--text-2);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-faq .breadcrumbs a:hover {
  color: var(--cyan);
  border-color: rgba(47, 227, 240, 0.5);
}

/* ---------- 首屏导语 ---------- */
.page-faq .faq-masthead {
  padding: clamp(44px, 7vw, 84px) 0 clamp(38px, 6vw, 62px);
  border-bottom: 1px solid var(--faq-hair);
  background:
    radial-gradient(120% 150% at 88% -20%, rgba(47, 227, 240, 0.15), transparent 58%),
    radial-gradient(90% 130% at 0% 0%, rgba(14, 124, 147, 0.18), transparent 64%);
}

.page-faq .faq-eyebrow {
  display: inline-block;
  margin: 0 0 20px;
  padding: 6px 12px;
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-faq h1 {
  max-width: 16em;
  margin: 0 0 20px;
  font-size: clamp(28px, 5.2vw, 54px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-faq .faq-lede {
  max-width: 44em;
  margin: 0;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.8;
  color: var(--text-2);
}

.page-faq .faq-meta-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  margin-top: clamp(28px, 4vw, 46px);
  border: 1px solid var(--faq-hair);
  background: var(--faq-hair);
}

.page-faq .faq-meta-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 20px;
  background: var(--ink-900);
}

.page-faq .faq-meta-num {
  font-size: clamp(24px, 3vw, 30px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--cyan);
}

.page-faq .faq-meta-item span:last-child {
  font-size: 13px;
  line-height: 1.5;
  color: var(--text-2);
}

/* ---------- 章节通用 ---------- */
.page-faq .faq-sec {
  padding: var(--faq-pad-y) 0 0;
}

.page-faq .faq-sec:last-of-type {
  padding-bottom: var(--faq-pad-y);
}

.page-faq .faq-sec + .faq-sec {
  border-top: 1px solid var(--faq-hair);
}

.page-faq .faq-sec-head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-bottom: clamp(26px, 4vw, 46px);
}

@media (min-width: 880px) {
  .page-faq .faq-sec-head {
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 34px;
    align-items: start;
  };
}

.page-faq .faq-sec-num {
  display: block;
  font-size: clamp(34px, 5vw, 58px);
  font-weight: 600;
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: var(--cyan-deep);
}

.page-faq .faq-sec-text h2 {
  margin: 0 0 10px;
  font-size: clamp(23px, 3.2vw, 34px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-faq .faq-sec-text p {
  max-width: 46em;
  margin: 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--text-2);
}

/* ---------- 章节索引 ---------- */
.page-faq .faq-index {
  padding-top: var(--faq-pad-y);
}

.page-faq .faq-index-grid {
  display: grid;
  grid-template-columns: 1fr;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--faq-hair);
}

.page-faq .idx-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-rows: auto auto;
  gap: 4px 18px;
  align-items: baseline;
  min-height: 44px;
  padding: 20px clamp(14px, 2.5vw, 26px);
  border-bottom: 1px solid var(--faq-hair);
  color: var(--text);
  text-decoration: none;
  transition: background 0.22s ease, box-shadow 0.22s ease;
}

.page-faq .idx-num {
  grid-column: 1;
  grid-row: 1 / span 2;
  align-self: center;
  font-size: clamp(24px, 3.4vw, 32px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--cyan);
  transition: color 0.22s ease;
}

.page-faq .idx-name {
  grid-column: 2;
  grid-row: 1;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-faq .idx-desc {
  grid-column: 2;
  grid-row: 2;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--text-2);
}

.page-faq .idx-card:hover,
.page-faq .idx-card.is-active {
  background: linear-gradient(90deg, rgba(47, 227, 240, 0.09), transparent 62%);
  box-shadow: inset 3px 0 0 var(--cyan);
}

.page-faq .idx-card:hover .idx-num,
.page-faq .idx-card.is-active .idx-num {
  color: var(--cyan);
}

@media (min-width: 760px) {
  .page-faq .faq-index-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-index-grid > li:nth-child(odd) {
    border-right: 1px solid var(--faq-hair);
  }
}

/* ---------- 安装前准备 ---------- */
.page-faq .faq-prep-list {
  display: grid;
  grid-template-columns: 1fr;
  margin: 0;
  border-top: 1px solid var(--faq-hair);
}

.page-faq .faq-prep-list > div {
  display: grid;
  gap: 7px;
  padding: 20px 0;
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .faq-prep-list dt {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
}

.page-faq .faq-prep-list dt::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 10px;
  vertical-align: 0.18em;
  background: var(--cyan);
}

.page-faq .faq-prep-list dd {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--text-2);
}

@media (min-width: 780px) {
  .page-faq .faq-prep-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-prep-list > div:nth-child(odd) {
    padding-right: 36px;
    border-right: 1px solid var(--faq-hair);
  }

  .page-faq .faq-prep-list > div:nth-child(even) {
    padding-left: 36px;
  }
}

/* ---------- 分步操作卡 ---------- */
.page-faq .faq-steps-figure {
  margin: 0 0 clamp(26px, 4vw, 44px);
}

.page-faq .faq-steps {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--faq-hair);
  background: var(--faq-hair);
}

.page-faq .step-card {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 16px;
  padding: 22px clamp(16px, 3vw, 30px);
  background: var(--ink-900);
  transition: background 0.25s ease;
}

.page-faq .step-num {
  font-size: clamp(24px, 3.4vw, 36px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--cyan);
}

.page-faq .step-title {
  margin: 0 0 10px;
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-faq .step-body p {
  max-width: 48em;
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--text-2);
}

.page-faq .step-card:hover {
  background: var(--panel-blue);
}

.page-faq .step-card.is-key {
  background:
    linear-gradient(90deg, rgba(255, 106, 43, 0.09), transparent 46%),
    var(--ink-900);
  box-shadow: inset 3px 0 0 var(--orange);
}

.page-faq .step-card.is-key .step-num {
  color: var(--orange);
}

.page-faq .step-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

@media (min-width: 760px) {
  .page-faq .step-card {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 32px;
    padding: 30px 40px;
  }
}

/* ---------- 排名与赛程 ---------- */
.page-faq .faq-query-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  border: 1px solid var(--faq-hair);
  background: var(--faq-hair);
}

.page-faq .faq-query-card {
  padding: clamp(22px, 3vw, 34px);
  background: linear-gradient(180deg, rgba(11, 27, 51, 0.94), rgba(5, 10, 22, 0.94));
}

.page-faq .faq-query-card h3 {
  margin: 0 0 12px;
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-faq .faq-query-card p {
  margin: 0 0 12px;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--text-2);
}

.page-faq .faq-query-card p:last-child {
  margin-bottom: 0;
  padding-top: 12px;
  border-top: 1px solid var(--faq-hair);
  font-size: 14.5px;
  color: var(--cyan);
}

@media (min-width: 780px) {
  .page-faq .faq-query-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 报错速查表 ---------- */
.page-faq .faq-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--faq-hair);
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: 15px;
}

.page-faq .faq-table thead th {
  padding: 14px 18px;
  border-bottom: 1px solid var(--faq-hair);
  background: rgba(11, 27, 51, 0.8);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-align: left;
  white-space: nowrap;
  color: var(--text-2);
}

.page-faq .faq-table tbody th,
.page-faq .faq-table tbody td {
  padding: 16px 18px;
  border-bottom: 1px solid var(--faq-hair);
  text-align: left;
  vertical-align: top;
  line-height: 1.7;
}

.page-faq .faq-table tbody th {
  font-weight: 700;
  color: var(--text);
}

.page-faq .faq-table tbody td {
  color: var(--text-2);
}

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

.page-faq .faq-table tbody tr:hover {
  background: rgba(47, 227, 240, 0.05);
}

.page-faq .faq-table tbody a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 227, 240, 0.42);
  transition: border-color 0.2s ease;
}

.page-faq .faq-table tbody a:hover {
  border-color: var(--cyan);
}

/* ---------- 常见问答 ---------- */
.page-faq .faq-accordion {
  border-top: 1px solid var(--faq-hair);
}

.page-faq .acc-item {
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .acc-item h3 {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

.page-faq .acc-trigger {
  position: relative;
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr) 20px;
  align-items: center;
  gap: 14px;
  width: 100%;
  min-height: 44px;
  padding: 20px 4px 20px 18px;
  border: 0;
  background: none;
  font: inherit;
  text-align: left;
  color: var(--text);
  cursor: pointer;
}

.page-faq .acc-trigger::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: var(--cyan);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.24s ease;
}

.page-faq .acc-item[data-open="true"] .acc-trigger::before {
  transform: scaleY(1);
}

.page-faq .acc-num {
  align-self: center;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--text-2);
  transition: color 0.24s ease;
}

.page-faq .acc-item[data-open="true"] .acc-num {
  color: var(--cyan);
}

.page-faq .acc-q {
  font-size: clamp(16px, 1.9vw, 18px);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: -0.01em;
}

.page-faq .acc-sign {
  position: relative;
  justify-self: end;
  width: 16px;
  height: 16px;
}

.page-faq .acc-sign::before,
.page-faq .acc-sign::after {
  content: "";
  position: absolute;
  background: var(--text-2);
  transition: transform 0.24s ease, background 0.24s ease;
}

.page-faq .acc-sign::before {
  left: 0;
  top: 7px;
  width: 16px;
  height: 2px;
}

.page-faq .acc-sign::after {
  left: 7px;
  top: 0;
  width: 2px;
  height: 16px;
}

.page-faq .acc-item[data-open="true"] .acc-sign::before {
  background: var(--cyan);
}

.page-faq .acc-item[data-open="true"] .acc-sign::after {
  transform: scaleY(0);
}

.page-faq .acc-panel {
  padding: 0 4px 26px 72px;
}

.page-faq .acc-panel p {
  max-width: 50em;
  margin: 0 0 12px;
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--text-2);
}

.page-faq .acc-panel p:last-child {
  margin-bottom: 0;
}

.page-faq .acc-panel a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 227, 240, 0.42);
}

.page-faq .acc-panel a:hover {
  border-color: var(--cyan);
}

@media (max-width: 560px) {
  .page-faq .acc-trigger {
    grid-template-columns: 32px minmax(0, 1fr) 18px;
    gap: 10px;
    padding-left: 14px;
  }

  .page-faq .acc-panel {
    padding-left: 14px;
  }
}

/* ---------- 术语与延伸 ---------- */
.page-faq .faq-glossary-figure {
  position: relative;
  overflow: hidden;
  margin: 0 0 clamp(26px, 4vw, 44px);
  border: 1px solid var(--faq-hair);
  aspect-ratio: 2 / 1;
  background: var(--panel-blue);
}

.page-faq .faq-glossary-figure img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  opacity: 0.52;
}

.page-faq .faq-glossary {
  margin: 0;
  border-top: 1px solid var(--faq-hair);
}

.page-faq .faq-glossary > div {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 20px 0;
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .faq-glossary dt {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--cyan);
}

.page-faq .faq-glossary dd {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--text-2);
}

@media (min-width: 780px) {
  .page-faq .faq-glossary > div {
    grid-template-columns: 170px minmax(0, 1fr);
    gap: 32px;
    align-items: baseline;
  }
}

.page-faq .faq-next {
  margin-top: clamp(34px, 5vw, 56px);
}

.page-faq .faq-next h3 {
  margin: 0;
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-faq .faq-next ul {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: clamp(18px, 3vw, 28px) 0 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--faq-hair);
  background: var(--faq-hair);
}

.page-faq .faq-next li {
  background: var(--ink-900);
}

.page-faq .faq-next a {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 44px;
  padding: 22px clamp(18px, 3vw, 26px);
  color: var(--text);
  text-decoration: none;
  transition: background 0.24s ease;
}

.page-faq .faq-next a:hover {
  background: rgba(47, 227, 240, 0.08);
}

.page-faq .faq-next a span:first-child {
  font-size: 17px;
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: -0.01em;
}

.page-faq .faq-next a span:last-child {
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--text-2);
}

@media (min-width: 780px) {
  .page-faq .faq-next ul {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 降级动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .idx-card,
  .page-faq .step-card,
  .page-faq .acc-trigger::before,
  .page-faq .acc-sign::before,
  .page-faq .acc-sign::after,
  .page-faq .faq-next a {
    transition: none;
  }
}
<<<END>>>