.page-faq {
  --faq-rail-w: 264px;
  --faq-gap: 24px;
  --faq-line-cyan: rgba(46, 196, 182, 0.4);
  background: var(--bg);
  color: var(--text);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 28px 0 36px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(230, 57, 70, 0.28) 0%, rgba(11, 14, 19, 0) 62%),
    var(--ink);
  overflow: hidden;
}

.page-faq .faq-hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--grid) 0 1px, transparent 1px 100%),
    linear-gradient(to bottom, var(--grid) 0 1px, transparent 1px 100%);
  background-size: 64px 64px;
  opacity: 0.55;
  pointer-events: none;
}

.page-faq .faq-hero__band {
  position: absolute;
  right: -60px;
  top: -40px;
  width: 220px;
  height: 420px;
  background: linear-gradient(180deg, var(--red) 0%, var(--red-deep) 100%);
  transform: skewX(-14deg);
  opacity: 0.9;
  pointer-events: none;
}

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

.page-faq .breadcrumbs {
  margin-bottom: 20px;
}

.page-faq .faq-hero__title {
  margin: 10px 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 34px;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--paper);
}

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

.page-faq .faq-hero__facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  max-width: 460px;
}

.page-faq .faq-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--cyan);
  background: rgba(20, 26, 34, 0.72);
}

.page-faq .faq-hero__facts .num {
  font-family: var(--font-data);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.page-faq .faq-hero__fact-label {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}

/* ---------- 筛选带 ---------- */
.page-faq .faq-filterwrap {
  position: relative;
  z-index: 2;
  padding-top: 18px;
  padding-bottom: 6px;
}

.page-faq .faq-filter {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: thin;
}

.page-faq .faq-filter .filter-btn {
  flex: 0 0 auto;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text-dim);
  font-family: var(--font-body);
  font-size: 13px;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: color var(--ease), background var(--ease), border-color var(--ease);
}

.page-faq .faq-filter .filter-btn:hover {
  color: var(--paper);
  border-color: var(--red);
}

.page-faq .faq-filter .filter-btn:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .faq-filter .filter-btn[aria-pressed="true"] {
  background: var(--red);
  border-color: var(--red);
  color: var(--paper);
  font-weight: 600;
}

/* ---------- 两栏主体 ---------- */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  padding-top: 20px;
  padding-bottom: 48px;
}

.page-faq .faq-rail {
  position: relative;
  border: 1px solid var(--line);
  background: var(--surface);
  padding: 18px 16px;
}

.page-faq .faq-rail__title {
  margin: 0 0 12px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
  text-transform: uppercase;
}

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

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px;
  color: var(--text);
  text-decoration: none;
  font-size: 14px;
  border-left: 2px solid transparent;
  transition: border-color var(--ease), background var(--ease), color var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  border-left-color: var(--red);
  background: rgba(230, 57, 70, 0.1);
  color: var(--paper);
  outline: none;
}

.page-faq .faq-index__num {
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--cyan);
}

.page-faq .faq-rail__note {
  display: flex;
  gap: 10px;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-rail__note p {
  margin: 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--text-dim);
}

.page-faq .faq-rail__note .status-dot {
  margin-top: 6px;
  flex: 0 0 auto;
}

.page-faq .faq-rail__link {
  display: inline-block;
  margin-top: 14px;
  font-size: 13px;
}

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

.page-faq .faq-group {
  position: relative;
  padding-bottom: 34px;
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.page-faq .faq-group + .faq-group {
  padding-top: 30px;
}

.page-faq .faq-group + .faq-group::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--cyan);
  opacity: 0.45;
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 10px;
}

.page-faq .faq-group__num {
  font-family: var(--font-data);
  font-size: 22px;
  font-weight: 700;
  color: var(--red);
  line-height: 1;
}

.page-faq .faq-group__head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-group:target .faq-group__num {
  color: var(--cyan);
}

.page-faq .faq-group:target .faq-group__head h2 {
  box-shadow: inset 0 -2px 0 var(--red);
}

.page-faq .faq-group__intro {
  margin: 0 0 20px;
  max-width: 56ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}

/* ---------- 三步路径图 ---------- */
.page-faq .step-map {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin: 0 0 20px;
  padding: 0;
}

.page-faq .step-map__node {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: baseline;
  gap: 4px 12px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(46, 196, 182, 0.1) 0%, rgba(20, 26, 34, 0) 90%), var(--surface);
}

.page-faq .step-map__num {
  grid-row: span 2;
  font-family: var(--font-data);
  font-size: 24px;
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .step-map__label {
  font-size: 15px;
  font-weight: 600;
  color: var(--paper);
}

.page-faq .step-map__hint {
  font-size: 12px;
  color: var(--text-dim);
  letter-spacing: 0.02em;
}

/* ---------- 图片 ---------- */
.page-faq .faq-media {
  margin: 0 0 20px;
  border: 1px solid var(--line);
  background: var(--surface);
}

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

.page-faq .faq-media__cap {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-family: var(--font-data);
  font-size: 12px;
  line-height: 1.6;
  color: var(--text-dim);
}

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

.page-faq .qa {
  border: 1px solid var(--line);
  border-left: 2px solid var(--grid);
  background: var(--surface);
  transition: border-left-color var(--ease);
}

.page-faq .qa:hover {
  border-left-color: var(--red);
}

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

.page-faq .qa__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 13px 14px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa__head:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-faq .qa__no {
  flex: 0 0 auto;
  font-family: var(--font-data);
  font-size: 12px;
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: 0.04em;
}

.page-faq .qa__q {
  flex: 1 1 auto;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--paper);
}

.page-faq .qa__toggle {
  flex: 0 0 auto;
  position: relative;
  width: 12px;
  height: 12px;
  margin-top: 2px;
}

.page-faq .qa__toggle::before,
.page-faq .qa__toggle::after {
  content: "";
  position: absolute;
  background: var(--text-dim);
  transition: transform var(--ease), background var(--ease);
}

.page-faq .qa__toggle::before {
  top: 5px;
  left: 0;
  width: 12px;
  height: 2px;
}

.page-faq .qa__toggle::after {
  top: 0;
  left: 5px;
  width: 2px;
  height: 12px;
}

.page-faq .qa[open] .qa__toggle::after {
  transform: scaleY(0);
}

.page-faq .qa[open] .qa__toggle::before {
  background: var(--red);
}

.page-faq .qa__body {
  padding: 0 16px 16px 46px;
  border-top: 1px solid var(--line);
}

.page-faq .qa__body p {
  margin: 12px 0 0;
  text-indent: 1em;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-dim);
}

/* ---------- 底部 CTA ---------- */
.page-faq .faq-cta {
  border-top: 1px solid var(--line);
  background:
    linear-gradient(115deg, rgba(230, 57, 70, 0.22) 0%, rgba(11, 14, 19, 0) 55%),
    var(--ink);
  padding: 34px 0 40px;
}

.page-faq .faq-cta__inner {
  display: grid;
  gap: 22px;
}

.page-faq .faq-cta__text h2 {
  margin: 8px 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 24px;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-cta__text p {
  margin: 0;
  max-width: 52ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

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

/* ---------- 平板起 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-hero {
    padding: 40px 0 48px;
  }

  .page-faq .faq-hero__title {
    font-size: 46px;
  }

  .page-faq .faq-hero__lede {
    font-size: 16px;
  }

  .page-faq .faq-hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    max-width: none;
  }

  .page-faq .faq-hero__facts li {
    flex-direction: column;
    gap: 4px;
  }

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

  .page-faq .faq-group__head h2 {
    font-size: 26px;
  }
}

/* ---------- 桌面两栏 ---------- */
@media (min-width: 960px) {
  .page-faq .faq-hero__title {
    font-size: 58px;
  }

  .page-faq .faq-shell {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: 36px;
    padding-top: 28px;
    padding-bottom: 64px;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-h) + 18px);
  }

  .page-faq .faq-filterwrap {
    padding-top: 24px;
  }

  .page-faq .faq-media {
    margin-left: 0;
    margin-right: 0;
  }

  .page-faq .faq-media--field {
    max-width: 620px;
  }

  .page-faq .faq-cta {
    padding: 48px 0 56px;
  }

  .page-faq .faq-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 32px;
  }

  .page-faq .faq-cta__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-hero__title {
    font-size: 66px;
  }

  .page-faq .faq-group__head h2 {
    font-size: 30px;
  }
}
<<<END>>>