.page-faq {
  --faq-rail-w: 236px;
  --faq-gap: clamp(20px, 2.8vw, 44px);
  --faq-radius: var(--r-lg);
  display: block;
  background: var(--ink-900);
  color: var(--paper);
  padding-bottom: clamp(48px, 8vw, 96px);
  font-family: var(--f-display);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 4.4vw, 54px) 0 clamp(24px, 3.6vw, 44px);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(255, 122, 47, 0.14) 0%, rgba(255, 122, 47, 0) 58%),
    radial-gradient(90% 80% at 6% 100%, rgba(43, 196, 216, 0.10) 0%, rgba(43, 196, 216, 0) 62%),
    linear-gradient(180deg, var(--ink-800) 0%, var(--ink-900) 100%);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  align-items: end;
}

.page-faq .faq-hero-copy {
  min-width: 0;
}

.page-faq .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
  margin: 0 0 clamp(14px, 2vw, 22px);
  padding: 0;
  font-size: var(--fs-12);
  color: var(--mist);
  letter-spacing: 0.02em;
}

.page-faq .breadcrumb li + li::before {
  content: "/";
  margin-right: 6px;
  color: var(--line);
}

.page-faq .breadcrumb a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-faq .breadcrumb a:hover {
  color: var(--paper);
  border-bottom-color: var(--orange);
}

.page-faq .breadcrumb li[aria-current="page"] {
  color: var(--paper-soft);
}

.page-faq .faq-h1 {
  margin: 0 0 clamp(14px, 2vw, 20px);
  font-family: var(--f-display);
  font-weight: 900;
  font-size: var(--fs-64);
  line-height: 1.06;
  letter-spacing: -0.02em;
  font-stretch: 96%;
  color: var(--paper);
  text-wrap: balance;
}

.page-faq .faq-lede {
  max-width: 38ch;
  margin: 0 0 clamp(18px, 2.4vw, 28px);
  font-size: var(--fs-16);
  line-height: 1.75;
  color: var(--paper-soft);
}

.page-faq .faq-quick {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-quick .pill {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  transition: transform 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.page-faq .faq-quick .pill:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 0 3px rgba(255, 122, 47, 0.22);
}

.page-faq .faq-hero-panel {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  background: linear-gradient(165deg, var(--ink-750) 0%, var(--ink-800) 70%);
  padding: clamp(18px, 2.4vw, 26px);
}

.page-faq .faq-panel-title {
  margin: 0 0 14px;
  font-family: var(--f-serif);
  font-size: var(--fs-14);
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--amber);
}

.page-faq .faq-panel-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .faq-panel-list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  background: rgba(11, 27, 43, 0.55);
  color: var(--paper-soft);
  text-decoration: none;
  font-size: var(--fs-14);
  line-height: 1.5;
  transition: border-color 0.14s var(--ease), background 0.14s var(--ease), color 0.14s var(--ease);
}

.page-faq .faq-panel-list a:hover,
.page-faq .faq-panel-list a:focus-visible {
  border-color: var(--orange);
  background: var(--orange-dim);
  color: var(--paper);
  outline: none;
}

.page-faq .faq-panel-num {
  flex: none;
  color: var(--amber);
  font-size: var(--fs-12);
  letter-spacing: 0.02em;
}

.page-faq .faq-panel-note {
  margin: 14px 0 0;
  font-size: var(--fs-12);
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 左栏 + 内容区 ---------- */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  padding-top: clamp(22px, 3.4vw, 44px);
}

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

.page-faq .faq-rail-title {
  display: none;
  margin: 0 0 12px;
  font-family: var(--f-serif);
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-faq .faq-rail-list {
  list-style: none;
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-rail-list li {
  flex: none;
}

.page-faq .faq-rail-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--paper-soft);
  text-decoration: none;
  font-size: var(--fs-14);
  white-space: nowrap;
  transition: background 0.14s var(--ease), border-color 0.14s var(--ease), color 0.14s var(--ease);
}

.page-faq .faq-rail-link .num {
  font-size: var(--fs-12);
  color: var(--mist);
}

.page-faq .faq-rail-link:hover,
.page-faq .faq-rail-link:focus-visible {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--ink-900);
  outline: none;
}

.page-faq .faq-rail-link:hover .num,
.page-faq .faq-rail-link:focus-visible .num {
  color: var(--ink-900);
}

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

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  scroll-margin-top: clamp(80px, 13vh, 132px);
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(36px, 5.4vw, 68px);
  padding-top: clamp(26px, 3.6vw, 44px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-group-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  margin-bottom: clamp(16px, 2.4vw, 26px);
}

.page-faq .faq-group-index {
  display: inline-block;
  padding: 4px 10px;
  border-radius: var(--r-sm);
  border: 1px solid rgba(245, 185, 66, 0.42);
  background: rgba(245, 185, 66, 0.10);
  color: var(--amber);
  font-size: var(--fs-14);
  line-height: 1.4;
  letter-spacing: 0.04em;
}

.page-faq .faq-group-head h2 {
  margin: 0 0 8px;
  font-family: var(--f-serif);
  font-weight: 600;
  font-size: var(--fs-34);
  line-height: 1.25;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-faq .faq-group-head p {
  margin: 0;
  max-width: 40ch;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 图 ---------- */
.page-faq .faq-figure {
  margin: 0 0 clamp(16px, 2.4vw, 26px);
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  overflow: hidden;
  background: var(--ink-800);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  background: var(--ink-750);
}

.page-faq .faq-figure figcaption {
  padding: 10px 16px;
  border-top: 1px solid var(--line);
  font-family: var(--f-serif);
  font-size: var(--fs-12);
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 步骤卡 ---------- */
.page-faq .faq-steps {
  display: grid;
  gap: 10px;
}

.page-faq .faq-step {
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  background: linear-gradient(160deg, var(--ink-750) 0%, var(--ink-800) 62%);
  transition: border-color 0.16s var(--ease), background 0.16s var(--ease);
}

.page-faq .faq-step[open] {
  border-color: rgba(255, 122, 47, 0.48);
  background: linear-gradient(160deg, #17304a 0%, var(--ink-800) 70%);
}

.page-faq .faq-step summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto auto;
  gap: clamp(8px, 1.6vw, 16px);
  align-items: center;
  padding: 14px clamp(14px, 2.2vw, 22px);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-step summary:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: -2px;
  border-radius: var(--faq-radius);
}

.page-faq .faq-step summary::after {
  content: "";
  width: 8px;
  height: 8px;
  border-right: 1.5px solid var(--mist);
  border-bottom: 1.5px solid var(--mist);
  transform: rotate(45deg);
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-step[open] summary::after {
  transform: rotate(-135deg);
  border-color: var(--orange);
}

.page-faq .faq-step-num {
  font-size: var(--fs-20);
  line-height: 1;
  color: var(--amber);
  letter-spacing: -0.02em;
}

.page-faq .faq-step[open] .faq-step-num {
  color: var(--orange);
}

.page-faq .faq-step-title {
  min-width: 0;
  font-size: var(--fs-16);
  line-height: 1.55;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-faq .faq-step-meta {
  font-size: var(--fs-12);
  color: var(--mist);
  white-space: nowrap;
}

.page-faq .faq-step-body {
  padding: 0 clamp(14px, 2.2vw, 22px) clamp(14px, 2.2vw, 20px) clamp(38px, 4.4vw, 54px);
}

.page-faq .faq-step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: faqstep;
}

.page-faq .faq-step-list li {
  counter-increment: faqstep;
  position: relative;
  margin-left: 7px;
  padding: 0 0 16px 26px;
  border-left: 1px solid var(--line);
  font-size: var(--fs-16);
  line-height: 1.75;
  color: var(--paper-soft);
  overflow-wrap: anywhere;
}

.page-faq .faq-step-list li::before {
  content: counter(faqstep);
  position: absolute;
  left: -9px;
  top: 3px;
  width: 18px;
  height: 18px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--ink-900);
  font-family: var(--f-mono);
  font-size: 10px;
  line-height: 17px;
  text-align: center;
  color: var(--mist);
}

.page-faq .faq-step-list li:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-faq .faq-step-list .num {
  color: var(--amber);
  font-size: var(--fs-14);
  overflow-wrap: anywhere;
}

/* ---------- 手势示意 ---------- */
.page-faq .faq-gestures {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin-bottom: clamp(16px, 2.4vw, 24px);
}

.page-faq .faq-gesture {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: center;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--ink-800);
  color: var(--cyan);
}

.page-faq .faq-gesture svg {
  display: block;
  width: 56px;
  height: 56px;
  flex: none;
}

.page-faq .faq-gesture p {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.65;
  color: var(--mist);
}

.page-faq .faq-gesture-label {
  display: block;
  margin-bottom: 2px;
  font-family: var(--f-serif);
  font-size: var(--fs-16);
  color: var(--paper);
}

/* ---------- 排查清单 ---------- */
.page-faq .faq-checks {
  list-style: none;
  margin: 0 0 clamp(16px, 2.4vw, 24px);
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .faq-checks li {
  position: relative;
}

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

.page-faq .faq-checks label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 11px 14px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--ink-800);
  font-size: var(--fs-14);
  line-height: 1.6;
  color: var(--paper-soft);
  cursor: pointer;
  transition: border-color 0.16s var(--ease), color 0.16s var(--ease);
}

.page-faq .faq-checks label::before {
  content: "";
  flex: none;
  width: 16px;
  height: 16px;
  margin-top: 2px;
  border: 1px solid var(--mist-dim);
  border-radius: 5px;
  background: transparent;
  transition: background 0.16s var(--ease), border-color 0.16s var(--ease), box-shadow 0.16s var(--ease);
}

.page-faq .faq-checks label:hover {
  border-color: var(--mist-dim);
}

.page-faq .faq-checks input:checked + label {
  border-color: rgba(63, 191, 111, 0.55);
  color: var(--paper);
}

.page-faq .faq-checks input:checked + label::before {
  background: var(--green);
  border-color: var(--green);
  box-shadow: inset 0 0 0 2px var(--ink-800);
}

.page-faq .faq-checks input:focus-visible + label {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

/* ---------- 组尾提示 ---------- */
.page-faq .faq-help {
  margin: clamp(14px, 2vw, 20px) 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--orange);
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-help a {
  color: var(--paper-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 122, 47, 0.55);
}

.page-faq .faq-help a:hover {
  color: var(--orange);
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-gestures {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-gesture {
    grid-template-columns: minmax(0, 1fr);
    justify-items: start;
    align-content: start;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 0.78fr);
    gap: clamp(28px, 4vw, 64px);
  }
}

@media (min-width: 960px) {
  .page-faq .faq-shell {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: clamp(84px, 13vh, 124px);
  }

  .page-faq .faq-rail-title {
    display: block;
  }

  .page-faq .faq-rail-list {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-rail-list li {
    flex: initial;
  }

  .page-faq .faq-rail-link {
    justify-content: space-between;
    border-radius: 999px;
    padding: 10px 16px;
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-steps {
    gap: 12px;
  }

  .page-faq .faq-step:nth-child(3n + 2) {
    margin-left: clamp(0px, 2vw, 26px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-quick .pill,
  .page-faq .faq-step,
  .page-faq .faq-step summary::after,
  .page-faq .faq-checks label,
  .page-faq .faq-checks label::before {
    transition: none;
  }

  .page-faq .faq-quick .pill:hover {
    transform: none;
  }
}
<<<END>>>