.page-faq {
  --faq-hair: rgba(53, 69, 90, 0.6);
  background: var(--phx-ink);
  color: var(--phx-body);
  font-family: var(--font-sans);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 28px 0 42px;
  border-bottom: 1px solid var(--phx-grid);
  background:
    linear-gradient(200deg, rgba(224, 58, 31, 0.30) 0%, rgba(224, 58, 31, 0.30) 16%, rgba(242, 106, 33, 0.14) 16%, rgba(242, 106, 33, 0.14) 28%, transparent 28%),
    linear-gradient(160deg, var(--phx-deep), var(--phx-ink) 72%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(53, 69, 90, 0.4) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(53, 69, 90, 0.4) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.5;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 88%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 88%);
}

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

.page-faq .faq-hero__crumb {
  margin-bottom: 18px;
  font-size: 13px;
}

.page-faq .faq-hero__eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--phx-amber);
}

.page-faq .faq-hero__title {
  margin: 12px 0 0;
  max-width: 22ch;
  font-size: clamp(26px, 5.4vw, 44px);
  line-height: 1.18;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--phx-cream);
}

.page-faq .faq-hero__lede {
  margin: 16px 0 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--phx-body);
}

.page-faq .faq-hero__meta {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-faq .faq-hero__meta li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 12px 14px;
  border-left: 2px solid var(--phx-red);
  background: rgba(28, 36, 48, 0.78);
}

.page-faq .faq-hero__num {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--phx-amber);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-hero__cap {
  font-size: 13px;
  line-height: 1.5;
  color: var(--phx-mute);
}

/* ---------- 主体骨架 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  padding-top: 30px;
  padding-bottom: 56px;
}

/* ---------- 左侧索引 ---------- */
.page-faq .faq-index {
  border-left: 2px solid var(--phx-red);
  padding-left: 12px;
  min-width: 0;
}

.page-faq .faq-index__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--phx-mute);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--faq-hair);
  background: var(--phx-coal);
  color: var(--phx-body);
  font-size: 13px;
  line-height: 1.4;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}

.page-faq .faq-index__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--phx-amber);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  border-color: var(--phx-red);
  background: var(--phx-slate);
  color: var(--phx-cream);
}

/* ---------- 内容区 ---------- */
.page-faq .faq-main {
  display: grid;
  gap: 40px;
  min-width: 0;
}

.page-faq .faq-section {
  scroll-margin-top: calc(var(--phx-bar-h) + 24px);
  min-width: 0;
}

.page-faq .faq-section__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 12px;
  align-items: baseline;
  padding-bottom: 12px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--phx-grid);
}

.page-faq .faq-section__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--phx-red);
}

.page-faq .faq-section__title {
  margin: 0;
  font-size: clamp(20px, 3.2vw, 28px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--phx-cream);
}

.page-faq .faq-section__sub {
  grid-column: 1 / -1;
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--phx-mute);
}

.page-faq .faq-lead {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--phx-body);
}

/* ---------- 三条路径 ---------- */
.page-faq .faq-path-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
}

.page-faq .faq-paths {
  display: grid;
  gap: 14px;
  min-width: 0;
}

.page-faq .faq-path {
  padding: 16px 18px;
  background: var(--phx-coal);
  border: 1px solid var(--faq-hair);
}

.page-faq .faq-path h3 {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.4;
  color: var(--phx-cream);
}

.page-faq .faq-path h3::before {
  content: "";
  flex: 0 0 8px;
  width: 8px;
  height: 8px;
  background: var(--phx-amber);
}

/* ---------- 步骤（圆号 + 竖线串联） ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  counter-reset: faqstep;
}

.page-faq .faq-steps li {
  position: relative;
  padding-left: 34px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--phx-body);
}

.page-faq .faq-steps li::before {
  counter-increment: faqstep;
  content: counter(faqstep);
  position: absolute;
  left: 0;
  top: 1px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--phx-red);
  color: var(--phx-cream);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
}

.page-faq .faq-steps li::after {
  content: "";
  position: absolute;
  left: 11px;
  top: 27px;
  bottom: -12px;
  width: 1px;
  background: var(--phx-grid);
}

.page-faq .faq-steps li:last-child::after {
  display: none;
}

/* ---------- 图片 ---------- */
.page-faq .faq-media {
  margin: 0;
  min-width: 0;
}

.page-faq .faq-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--faq-hair);
  background: var(--phx-coal);
}

.page-faq .faq-media--square {
  margin-top: 20px;
  max-width: 320px;
}

.page-faq .faq-media .phx-figure-cap {
  margin-top: 8px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--phx-mute);
}

/* ---------- 四类标签 ---------- */
.page-faq .faq-tags {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-tags li {
  padding: 6px 11px;
  font-size: 13px;
  line-height: 1.4;
  color: var(--phx-amber);
  background: rgba(255, 180, 61, 0.08);
  border: 1px solid rgba(255, 180, 61, 0.42);
}

/* ---------- 开关演示 ---------- */
.page-faq .faq-demo {
  position: relative;
  margin-bottom: 18px;
  padding: 16px;
  background: var(--phx-deep);
  border: 1px solid var(--faq-hair);
}

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

.page-faq .faq-demo__label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 4px 6px;
  cursor: pointer;
  font-size: 14px;
  color: var(--phx-cream);
}

.page-faq .faq-demo__track {
  position: relative;
  display: block;
  width: 44px;
  height: 24px;
  background: var(--phx-slate);
  border: 1px solid var(--phx-grid);
  transition: background 0.18s ease, border-color 0.18s ease;
}

.page-faq .faq-demo__knob {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 18px;
  height: 18px;
  background: var(--phx-body);
  transition: transform 0.18s ease, background 0.18s ease;
}

.page-faq .faq-demo__input:checked + .faq-demo__label .faq-demo__track {
  background: var(--phx-red);
  border-color: var(--phx-orange);
}

.page-faq .faq-demo__input:checked + .faq-demo__label .faq-demo__knob {
  transform: translateX(20px);
  background: var(--phx-cream);
}

.page-faq .faq-demo__input:focus-visible + .faq-demo__label {
  outline: 2px solid var(--phx-cream);
  outline-offset: 3px;
}

.page-faq .faq-demo__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--faq-hair);
}

.page-faq .faq-demo__list li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: var(--phx-coal);
  font-size: 13px;
  line-height: 1.5;
  color: var(--phx-body);
}

.page-faq .faq-demo__tag {
  flex: 0 0 auto;
  padding: 2px 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--phx-amber);
  border: 1px solid rgba(255, 180, 61, 0.5);
}

.page-faq .faq-demo__tag--plain {
  color: var(--phx-mute);
  border-color: var(--phx-grid);
}

.page-faq .faq-demo__input:checked ~ .faq-demo__list .faq-demo__item--plain {
  display: none;
}

.page-faq .faq-demo__hint {
  margin: 12px 0 0;
  font-size: 12px;
  line-height: 1.6;
  color: var(--phx-mute);
}

/* ---------- 问答板 ---------- */
.page-faq .faq-item {
  margin: 0 0 10px;
  background: var(--phx-coal);
  border: 1px solid var(--faq-hair);
  border-left: 2px solid var(--faq-hair);
  transition: border-color 0.18s ease;
}

.page-faq .faq-item[open] {
  border-left-color: var(--phx-red);
}

.page-faq .faq-item__head {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item__head::marker {
  content: "";
}

.page-faq .faq-item__head:hover {
  background: var(--phx-slate);
}

.page-faq .faq-item__head:focus-visible {
  outline: 2px solid var(--phx-cream);
  outline-offset: -2px;
}

.page-faq .faq-item__no {
  flex: 0 0 auto;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--phx-red);
}

.page-faq .faq-item__q {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 15px;
  line-height: 1.55;
  color: var(--phx-cream);
}

.page-faq .faq-item__chev {
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  margin-top: 7px;
  border-right: 2px solid var(--phx-mute);
  border-bottom: 2px solid var(--phx-mute);
  transform: rotate(45deg);
  transition: transform 0.18s ease, border-color 0.18s ease;
}

.page-faq .faq-item[open] .faq-item__chev {
  transform: rotate(-135deg);
  border-color: var(--phx-amber);
}

.page-faq .faq-item__body {
  padding: 14px 16px 16px;
  border-top: 1px solid var(--faq-hair);
}

.page-faq .faq-item__scene {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  line-height: 1.6;
  color: var(--phx-jade);
}

.page-faq .faq-item__body p {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--phx-body);
}

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

.page-faq .faq-item__body .faq-steps {
  margin-top: 4px;
}

/* ---------- 显示与兼容卡片 ---------- */
.page-faq .faq-cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-faq .faq-card {
  padding: 16px 18px;
  background: var(--phx-coal);
  border: 1px solid var(--faq-hair);
  border-top: 2px solid var(--phx-slate);
}

.page-faq .faq-card h3 {
  margin: 0 0 8px;
  font-size: 15px;
  line-height: 1.45;
  color: var(--phx-cream);
}

.page-faq .faq-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--phx-body);
}

/* ---------- 客服收束 ---------- */
.page-faq .faq-help {
  padding: 18px;
  border: 1px solid var(--faq-hair);
  border-left: 3px solid var(--phx-red);
  background: linear-gradient(118deg, rgba(224, 58, 31, 0.16), rgba(28, 36, 48, 0.92) 48%);
}

.page-faq .faq-help__line {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--phx-body);
}

.page-faq .faq-help__line strong {
  color: var(--phx-amber);
  font-weight: 700;
}

.page-faq .faq-help__actions {
  margin: 16px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-related {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--phx-mute);
}

.page-faq .faq-related a {
  color: var(--phx-amber);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 180, 61, 0.4);
}

.page-faq .faq-related a:hover,
.page-faq .faq-related a:focus-visible {
  color: var(--phx-cream);
  border-bottom-color: var(--phx-cream);
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__link,
  .page-faq .faq-item__chev,
  .page-faq .faq-demo__track,
  .page-faq .faq-demo__knob {
    transition: none;
  }
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-hero__meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .page-faq .faq-help {
    padding: 22px 24px;
  }
}

@media (min-width: 920px) {
  .page-faq .faq-hero {
    padding: 36px 0 52px;
  }

  .page-faq .faq-path-wrap {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-media--square {
    max-width: 360px;
  }

  .page-faq .faq-item__body {
    padding: 16px 20px 18px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: 44px;
    align-items: start;
    padding-top: 40px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--phx-bar-h) + 20px);
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    overflow: visible;
  }

  .page-faq .faq-index__link {
    width: 100%;
    white-space: normal;
  }
}
<<<END>>>