.page-faq {
  --faq-index-w: 236px;
  --faq-panel: rgba(16, 26, 58, 0.58);
  --faq-panel-line: rgba(30, 43, 82, 0.9);
  padding-bottom: 64px;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  margin-top: 18px;
  padding: 34px 0 30px;
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(90% 140% at 92% -20%, rgba(255, 107, 44, 0.2) 0%, rgba(255, 107, 44, 0) 58%),
    radial-gradient(70% 120% at 6% 120%, rgba(78, 216, 208, 0.12) 0%, rgba(78, 216, 208, 0) 62%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -130px;
  right: -70px;
  width: 320px;
  height: 320px;
  background: linear-gradient(140deg, rgba(255, 107, 44, 0.28), rgba(255, 107, 44, 0) 72%);
  clip-path: polygon(100% 0, 100% 100%, 0 0);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
}

.page-faq .faq-hero h1 {
  margin: 10px 0 16px;
  max-width: 22ch;
  font-size: clamp(28px, 8vw, 52px);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-hero .lead {
  max-width: 64ch;
  color: var(--silver);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 12px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__meta li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border: 1px solid var(--faq-panel-line);
  border-radius: 999px;
  background: rgba(16, 26, 58, 0.7);
  font-size: 13px;
  line-height: 1.4;
  color: var(--silver);
}

.page-faq .faq-hero__meta .mono {
  font-size: 15px;
  font-weight: 700;
  color: var(--lime);
}

/* ---------- 主体骨架 ---------- */

.page-faq .faq-shell {
  display: grid;
  gap: 26px;
  padding-top: 30px;
}

.page-faq .faq-index {
  position: relative;
}

.page-faq .faq-index__label {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--silver);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index__item {
  flex: 0 0 auto;
}

.page-faq .faq-index__link {
  display: block;
  padding: 9px 14px;
  border: 1px solid var(--faq-panel-line);
  border-radius: 999px;
  background: rgba(16, 26, 58, 0.55);
  font-size: 14px;
  line-height: 1.3;
  white-space: nowrap;
  color: var(--silver);
  text-decoration: none;
  transition: color 0.24s var(--ease), border-color 0.24s var(--ease), background 0.24s var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--paper);
  border-color: var(--orange);
  background: rgba(255, 107, 44, 0.12);
}

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

/* ---------- 章节 ---------- */

.page-faq .faq-section {
  padding-bottom: 40px;
  scroll-margin-top: 110px;
}

.page-faq .faq-section + .faq-section {
  padding-top: 36px;
  border-top: 1px solid var(--faq-panel-line);
}

.page-faq .faq-section--last {
  padding-bottom: 8px;
}

.page-faq .faq-section__head {
  max-width: 68ch;
}

.page-faq .faq-section__kicker {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.page-faq .faq-section__title {
  margin: 0 0 10px;
  font-size: clamp(22px, 5vw, 32px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-section__note {
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--silver);
}

.page-faq .faq-inline-link {
  color: var(--cyan);
  text-decoration: underline;
  text-decoration-color: rgba(78, 216, 208, 0.45);
  text-underline-offset: 3px;
}

.page-faq .faq-inline-link:hover,
.page-faq .faq-inline-link:focus-visible {
  color: var(--lime);
  text-decoration-color: var(--lime);
}

/* ---------- 卡片组 ---------- */

.page-faq .faq-grid {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.page-faq .faq-card {
  padding: 18px;
  border: 1px solid var(--faq-panel-line);
  border-radius: var(--radius);
  background: var(--faq-panel);
}

.page-faq .faq-card h3 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--paper);
}

.page-faq .faq-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--silver);
}

.page-faq .faq-card--accent {
  border-left: 3px solid var(--orange);
}

/* ---------- 图片 ---------- */

.page-faq .faq-figure {
  margin: 24px 0 0;
  border: 1px solid var(--faq-panel-line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-2);
}

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

.page-faq .faq-figure .figure-caption {
  margin: 0;
  padding: 12px 16px;
  border-top: 1px solid var(--faq-panel-line);
  font-size: 13px;
  line-height: 1.6;
  color: var(--silver);
}

/* ---------- 排查步骤 ---------- */

.page-faq .faq-steps {
  position: relative;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-steps::before {
  content: "";
  position: absolute;
  left: 17px;
  top: 18px;
  bottom: 18px;
  width: 2px;
  background: linear-gradient(180deg, var(--orange), rgba(255, 107, 44, 0.08));
}

.page-faq .faq-step {
  position: relative;
  margin: 0 0 6px;
}

.page-faq .faq-step__label {
  position: relative;
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 12px 14px 12px 0;
  border-radius: 14px;
  cursor: pointer;
  transition: background 0.24s var(--ease);
}

.page-faq .faq-step__label:hover {
  background: rgba(30, 43, 82, 0.42);
}

.page-faq .faq-step__check {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
  pointer-events: none;
}

.page-faq .faq-step__node {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--faq-panel-line);
  border-radius: 50%;
  background: var(--ink-2);
  font-size: 13px;
  font-weight: 700;
  color: var(--silver);
  transition: background 0.24s var(--ease), border-color 0.24s var(--ease), color 0.24s var(--ease), box-shadow 0.24s var(--ease);
}

.page-faq .faq-step__check:checked ~ .faq-step__node {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--ink);
  box-shadow: 0 0 0 4px rgba(163, 245, 60, 0.16);
}

.page-faq .faq-step__check:focus-visible ~ .faq-step__node {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-faq .faq-step__content {
  display: block;
  padding-top: 5px;
}

.page-faq .faq-step__title {
  display: block;
  margin-bottom: 6px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
  transition: color 0.24s var(--ease);
}

.page-faq .faq-step__check:checked ~ .faq-step__content .faq-step__title {
  color: var(--silver);
}

.page-faq .faq-step__text {
  display: block;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--silver);
}

/* ---------- 折叠问答 ---------- */

.page-faq .faq-item {
  margin-top: 12px;
  border: 1px solid var(--faq-panel-line);
  border-radius: 14px;
  background: rgba(16, 26, 58, 0.45);
  overflow: hidden;
  transition: border-color 0.24s var(--ease);
}

.page-faq .faq-item[open] {
  border-color: rgba(255, 107, 44, 0.55);
}

.page-faq .faq-item__q {
  position: relative;
  padding: 15px 18px 15px 46px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--paper);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item__q::before {
  content: "+";
  position: absolute;
  left: 18px;
  top: 14px;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1.4;
  color: var(--orange);
}

.page-faq .faq-item[open] .faq-item__q::before {
  content: "–";
}

.page-faq .faq-item__q:hover,
.page-faq .faq-item__q:focus-visible {
  color: var(--lime);
}

.page-faq .faq-item__a {
  padding: 0 18px 18px 46px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--silver);
}

.page-faq .faq-item__a p {
  margin: 0 0 10px;
  max-width: 68ch;
}

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

/* ---------- 事实块 ---------- */

.page-faq .faq-facts {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.page-faq .faq-fact {
  padding: 16px 18px;
  border: 1px solid var(--faq-panel-line);
  border-radius: 14px;
  background: var(--faq-panel);
}

.page-faq .faq-fact__label {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-faq .faq-fact__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--silver);
}

/* ---------- 提示带 ---------- */

.page-faq .faq-alert {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  margin: 4px 0 34px;
  padding: 15px 18px;
  border: 1px solid rgba(255, 194, 75, 0.55);
  border-radius: var(--radius);
  background: linear-gradient(100deg, rgba(255, 194, 75, 0.22), rgba(255, 194, 75, 0.05));
  text-decoration: none;
  transition: transform 0.24s var(--ease), border-color 0.24s var(--ease);
}

.page-faq .faq-alert:hover,
.page-faq .faq-alert:focus-visible {
  transform: translateY(-2px);
  border-color: var(--amber);
}

.page-faq .faq-alert__tag {
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--amber);
  font-size: 13px;
  font-weight: 700;
  color: var(--paper-ink);
}

.page-faq .faq-alert__text {
  flex: 1 1 220px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper);
}

.page-faq .faq-alert__arrow {
  font-size: 18px;
  line-height: 1;
  color: var(--amber);
}

/* ---------- 联系方式 ---------- */

.page-faq .faq-contact {
  display: grid;
  gap: 1px;
  margin-top: 22px;
  border: 1px solid var(--faq-panel-line);
  border-radius: var(--radius);
  background: var(--faq-panel-line);
  overflow: hidden;
}

.page-faq .faq-contact__row {
  display: grid;
  gap: 4px;
  padding: 14px 18px;
  background: var(--ink-2);
}

.page-faq .faq-contact__label {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--silver);
}

.page-faq .faq-contact__value {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .faq-contact__note {
  margin: 22px 0 0;
  max-width: 70ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--silver);
}

.page-faq .faq-report {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-faq .faq-report li {
  position: relative;
  padding: 12px 16px 12px 40px;
  border: 1px dashed var(--faq-panel-line);
  border-radius: 12px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--silver);
}

.page-faq .faq-report li::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 20px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--orange);
}

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {
  .page-faq .faq-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }

  .page-faq .faq-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }

  .page-faq .faq-contact__row {
    grid-template-columns: 120px minmax(0, 1fr);
    align-items: baseline;
    gap: 16px;
  }

  .page-faq .faq-contact__label {
    font-size: 13px;
  }
}

@media (min-width: 940px) {
  .page-faq .faq-hero {
    padding: 56px 0 48px;
  }

  .page-faq .faq-shell {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    gap: 52px;
    padding-top: 48px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 104px;
    align-self: start;
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-index__item {
    flex: none;
  }

  .page-faq .faq-index__link {
    padding: 11px 12px;
    border: 0;
    border-left: 3px solid transparent;
    border-radius: 0 8px 8px 0;
    background: transparent;
    font-size: 15px;
    white-space: normal;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    border-left-color: var(--orange);
    background: rgba(255, 107, 44, 0.1);
  }

  .page-faq .faq-section {
    padding-bottom: 52px;
  }

  .page-faq .faq-section + .faq-section {
    padding-top: 48px;
  }

  .page-faq .faq-steps {
    margin-top: 30px;
  }

  .page-faq .faq-step__label {
    padding: 14px 18px 14px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-alert:hover,
  .page-faq .faq-alert:focus-visible {
    transform: none;
  }

  .page-faq .faq-step__label,
  .page-faq .faq-step__node,
  .page-faq .faq-index__link,
  .page-faq .faq-item {
    transition: none;
  }
}
<<<END>>>