.page-faq {
  color: var(--sf-text);
  --faq-line: rgba(38, 48, 67, 0.72);
  --faq-cell: rgba(6, 10, 19, 0.92);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 20px 0 38px;
  border-bottom: 1px solid var(--sf-steel);
  background:
    radial-gradient(90% 130% at 6% -30%, rgba(57, 244, 212, 0.15), transparent 62%),
    radial-gradient(70% 110% at 94% -10%, rgba(255, 122, 47, 0.11), transparent 60%),
    linear-gradient(180deg, rgba(24, 19, 56, 0.9) 0%, rgba(6, 10, 19, 0) 100%);
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  max-width: 22ch;
  font-family: var(--sf-sans);
  font-size: clamp(27px, 4.4vw, 44px);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.02em;
  color: var(--sf-pearl);
}

.page-faq .faq-hero__lead {
  margin: 16px 0 0;
  max-width: 66ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--sf-text-dim);
}

/* 面包屑 */
.page-faq .sf-crumbs ol {
  display: flex;
  flex-wrap: wrap;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--sf-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--sf-text-dim);
}

.page-faq .sf-crumbs li {
  display: flex;
  align-items: center;
}

.page-faq .sf-crumbs li + li::before {
  content: "/";
  margin: 0 8px;
  color: var(--sf-steel);
}

.page-faq .sf-crumbs a {
  color: var(--sf-text-dim);
  text-decoration: none;
  transition: color 0.2s var(--sf-ease);
}

.page-faq .sf-crumbs a:hover,
.page-faq .sf-crumbs a:focus-visible {
  color: var(--sf-cyan);
}

.page-faq .sf-crumbs [aria-current="page"] {
  color: var(--sf-cyan);
}

/* 快捷章节 */
.page-faq .faq-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-chips a {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 7px 14px;
  border: 1px solid var(--sf-steel);
  border-radius: 999px;
  font-size: 13px;
  line-height: 1.4;
  color: var(--sf-text-dim);
  text-decoration: none;
  transition: color 0.2s var(--sf-ease), border-color 0.2s var(--sf-ease), background 0.2s var(--sf-ease);
}

.page-faq .faq-chips a span {
  font-family: var(--sf-mono);
  font-size: 11px;
  color: var(--sf-orange);
  letter-spacing: 0.06em;
}

.page-faq .faq-chips a:hover,
.page-faq .faq-chips a:focus-visible {
  color: var(--sf-pearl);
  border-color: var(--sf-cyan);
  background: rgba(57, 244, 212, 0.08);
}

/* ---------- 主体布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 34px;
  padding: 34px 0 68px;
}

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

/* 章节索引 */
.page-faq .faq-index {
  border: 1px solid var(--sf-steel);
  border-radius: 4px;
  padding: 16px 15px;
  background: linear-gradient(170deg, rgba(10, 43, 45, 0.6), rgba(6, 10, 19, 0.45));
  box-shadow: var(--sf-shadow);
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-family: var(--sf-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--sf-amber);
}

.page-faq .faq-index ol {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index a {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  padding: 9px 8px;
  border-left: 2px solid transparent;
  border-radius: 3px;
  font-size: 14px;
  line-height: 1.45;
  color: var(--sf-text-dim);
  text-decoration: none;
  transition: color 0.2s var(--sf-ease), background 0.2s var(--sf-ease), border-color 0.2s var(--sf-ease);
}

.page-faq .faq-index a span {
  font-family: var(--sf-mono);
  font-size: 11px;
  color: var(--sf-steel);
  letter-spacing: 0.06em;
}

.page-faq .faq-index a:hover,
.page-faq .faq-index a:focus-visible {
  color: var(--sf-cyan);
  border-left-color: var(--sf-cyan);
  background: rgba(57, 244, 212, 0.07);
}

.page-faq .faq-index a:hover span,
.page-faq .faq-index a:focus-visible span {
  color: var(--sf-cyan);
}

.page-faq .faq-index__foot {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--faq-line);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--sf-text-dim);
}

.page-faq .faq-index__foot a,
.page-faq .faq-body a:not(.sf-btn) {
  color: var(--sf-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-faq .faq-index__foot a:hover,
.page-faq .faq-body a:not(.sf-btn):hover {
  color: var(--sf-pearl);
}

/* ---------- 章节 ---------- */
.page-faq .faq-chapter {
  min-width: 0;
}

.page-faq .faq-chapter + .faq-chapter {
  margin-top: 54px;
  padding-top: 42px;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-chapter__head {
  position: relative;
  padding-left: 46px;
  margin-bottom: 22px;
}

.page-faq .faq-chapter__num {
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--sf-serif);
  font-size: 32px;
  font-weight: 700;
  line-height: 1;
  color: rgba(57, 244, 212, 0.16);
  -webkit-text-stroke: 1px var(--sf-cyan);
}

.page-faq .faq-chapter__title {
  margin: 0;
  font-family: var(--sf-sans);
  font-size: clamp(21px, 2.6vw, 28px);
  font-weight: 800;
  line-height: 1.32;
  letter-spacing: -0.01em;
  color: var(--sf-pearl);
}

.page-faq .faq-chapter__sub {
  margin: 10px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--sf-text-dim);
}

/* 步骤图 */
.page-faq .faq-steps {
  display: grid;
  gap: 10px;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.page-faq .faq-steps li {
  position: relative;
  padding: 15px 14px 15px 16px;
  border: 1px solid var(--sf-steel);
  border-left: 2px solid var(--sf-orange);
  border-radius: 4px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--sf-text-dim);
  background: linear-gradient(155deg, rgba(24, 19, 56, 0.6), rgba(6, 10, 19, 0.4));
}

.page-faq .faq-steps li span {
  display: block;
  margin-bottom: 6px;
  font-family: var(--sf-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--sf-orange);
}

.page-faq .faq-steps li strong {
  display: block;
  margin-bottom: 4px;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--sf-pearl);
}

/* 规则四段 + 图 */
.page-faq .faq-rules {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  margin-bottom: 22px;
}

.page-faq .rule-parts {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--faq-line);
}

.page-faq .rule-parts li {
  padding: 14px 0 14px 18px;
  border-left: 2px solid rgba(57, 244, 212, 0.3);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .rule-parts h3 {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--sf-pearl);
}

.page-faq .rule-parts h3 b {
  font-family: var(--sf-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--sf-cyan);
}

.page-faq .rule-parts p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--sf-text-dim);
}

/* 图片 */
.page-faq .faq-figure {
  margin: 0;
  border: 1px solid var(--sf-steel);
  border-radius: 4px;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(24, 19, 56, 0.72), rgba(6, 10, 19, 0.5));
  box-shadow: var(--sf-shadow);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.9) contrast(1.06);
}

.page-faq .faq-figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--faq-line);
  font-family: var(--sf-mono);
  font-size: 11px;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--sf-text-dim);
}

.page-faq .faq-figure--wide {
  margin: 0 0 20px;
}

/* 字段表 */
.page-faq .field-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: 0 0 22px;
  border: 1px solid var(--sf-steel);
  border-radius: 4px;
  overflow: hidden;
  background: var(--sf-steel);
}

.page-faq .field-list__row {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 12px 14px;
  background: var(--faq-cell);
}

.page-faq .field-list dt {
  font-family: var(--sf-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--sf-amber);
  overflow-wrap: anywhere;
}

.page-faq .field-list dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--sf-text-dim);
}

/* ---------- 问答 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 10px;
}

.page-faq .faq-q {
  border: 1px solid var(--sf-steel);
  border-radius: 4px;
  background: rgba(18, 23, 34, 0.55);
  transition: border-color 0.22s var(--sf-ease), background 0.22s var(--sf-ease);
}

.page-faq .faq-q:hover {
  border-color: rgba(57, 244, 212, 0.35);
}

.page-faq .faq-q[open] {
  border-color: rgba(57, 244, 212, 0.5);
  background: rgba(10, 43, 45, 0.4);
}

.page-faq .faq-q summary {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr) 16px;
  gap: 10px;
  align-items: start;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.58;
  color: var(--sf-text);
  transition: color 0.2s var(--sf-ease);
}

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

.page-faq .faq-q summary:hover,
.page-faq .faq-q summary:focus-visible {
  color: var(--sf-cyan);
}

.page-faq .faq-q__num {
  margin-top: 3px;
  font-family: var(--sf-mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--sf-cyan);
}

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

.page-faq .faq-q__sign {
  position: relative;
  justify-self: end;
  width: 14px;
  height: 14px;
  margin-top: 6px;
}

.page-faq .faq-q__sign::before,
.page-faq .faq-q__sign::after {
  content: "";
  position: absolute;
  background: var(--sf-cyan);
  border-radius: 1px;
  transition: transform 0.24s var(--sf-ease), opacity 0.24s var(--sf-ease);
}

.page-faq .faq-q__sign::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-faq .faq-q__sign::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
}

.page-faq .faq-q[open] .faq-q__sign::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-q__body {
  padding: 13px 16px 18px;
  border-top: 1px solid var(--faq-line);
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--sf-text-dim);
}

.page-faq .faq-q__body p {
  margin: 0 0 10px;
}

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

.page-faq .faq-q__body strong {
  color: var(--sf-pearl);
  font-weight: 700;
}

/* ---------- 客服准备 ---------- */
.page-faq .checklist {
  display: grid;
  gap: 11px;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
}

.page-faq .checklist li {
  display: grid;
  grid-template-columns: 17px minmax(0, 1fr);
  gap: 12px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--sf-text-dim);
}

.page-faq .checklist li::before {
  content: "";
  width: 17px;
  height: 17px;
  margin-top: 3px;
  border: 1px solid var(--sf-orange);
  border-radius: 3px;
  box-shadow: inset 0 0 0 3px rgba(255, 122, 47, 0.14);
}

.page-faq .contact-card {
  margin-top: 24px;
  padding: 20px 18px;
  border: 1px solid rgba(255, 122, 47, 0.42);
  border-radius: 4px;
  background:
    radial-gradient(120% 140% at 100% 0%, rgba(255, 122, 47, 0.14), transparent 58%),
    linear-gradient(150deg, rgba(43, 13, 24, 0.85), rgba(6, 10, 19, 0.7));
  box-shadow: var(--sf-shadow);
}

.page-faq .contact-card__title {
  margin: 0 0 16px;
  font-family: var(--sf-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--sf-amber);
}

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

.page-faq .contact-card__list li {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .contact-card__list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-faq .contact-card__label {
  font-family: var(--sf-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--sf-text-dim);
}

.page-faq .contact-card__value {
  min-width: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--sf-pearl);
  overflow-wrap: anywhere;
}

.page-faq .sf-copy {
  display: inline-block;
  max-width: 100%;
  padding: 6px 10px;
  border: 1px solid var(--sf-steel);
  border-radius: 3px;
  background: rgba(6, 10, 19, 0.5);
  font-family: var(--sf-mono);
  font-size: 13px;
  line-height: 1.5;
  color: var(--sf-cyan);
  text-align: left;
  overflow-wrap: anywhere;
  cursor: pointer;
  appearance: none;
  transition: border-color 0.2s var(--sf-ease), background 0.2s var(--sf-ease), color 0.2s var(--sf-ease);
}

.page-faq .sf-copy:hover,
.page-faq .sf-copy:focus-visible {
  border-color: var(--sf-cyan);
  background: rgba(57, 244, 212, 0.1);
}

.page-faq .sf-copy[data-copied] {
  border-color: var(--sf-cyan);
  background: rgba(57, 244, 212, 0.18);
  color: var(--sf-pearl);
}

.page-faq .contact-card__note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--sf-text-dim);
}

.page-faq .faq-next {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-next a {
  display: inline-block;
  padding: 9px 16px;
  border: 1px solid var(--sf-steel);
  border-radius: 3px;
  font-family: var(--sf-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--sf-text-dim);
  text-decoration: none;
  transition: color 0.2s var(--sf-ease), border-color 0.2s var(--sf-ease), background 0.2s var(--sf-ease);
}

.page-faq .faq-next a:hover,
.page-faq .faq-next a:focus-visible {
  color: var(--sf-pearl);
  border-color: var(--sf-orange);
  background: rgba(255, 122, 47, 0.1);
}

.page-faq .faq-next a:not(:hover) {
  text-decoration: none;
}

/* ---------- 断点 ---------- */
@media (min-width: 620px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .field-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-rules {
    grid-template-columns: minmax(0, 1fr) 330px;
    gap: 28px;
    align-items: start;
  }

  .page-faq .faq-figure--wide img {
    max-height: 320px;
    object-fit: cover;
  }

  .page-faq .faq-hero {
    padding: 26px 0 52px;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-layout {
    grid-template-columns: 214px minmax(0, 1fr);
    gap: 52px;
    padding: 44px 0 92px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 24px;
    align-self: start;
  }

  .page-faq .faq-chapter + .faq-chapter {
    margin-top: 74px;
    padding-top: 54px;
  }

  .page-faq .faq-chapter__head {
    padding-left: 56px;
  }

  .page-faq .faq-chapter__num {
    font-size: 36px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-q,
  .page-faq .faq-q summary,
  .page-faq .sf-copy,
  .page-faq .faq-chips a,
  .page-faq .faq-index a,
  .page-faq .faq-next a,
  .page-faq .faq-q__sign::before,
  .page-faq .faq-q__sign::after {
    transition: none;
  }
}
<<<END>>>