.page-faq {
  --faq-no-w: 26px;
  --faq-pad-x: clamp(12px, 2vw, 20px);
  display: block;
  background: var(--bg);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  padding: calc(var(--header-h) + clamp(24px, 5vw, 56px)) 0 clamp(26px, 4vw, 48px);
  background:
    radial-gradient(120% 78% at 10% 0%, var(--season-wash), transparent 62%),
    var(--bg);
}

.page-faq .breadcrumb {
  margin-bottom: clamp(14px, 2vw, 22px);
}

.page-faq .faq-frame {
  position: relative;
  border: 1px solid var(--line);
  padding: clamp(18px, 3.2vw, 38px);
  background: linear-gradient(165deg, rgba(20, 34, 74, 0.6), rgba(10, 17, 32, 0) 66%);
}

.page-faq .faq-frame::before,
.page-faq .faq-frame::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border: 1px solid var(--season-accent);
  pointer-events: none;
}

.page-faq .faq-frame::before {
  top: -1px;
  left: -1px;
  border-right: 0;
  border-bottom: 0;
}

.page-faq .faq-frame::after {
  bottom: -1px;
  right: -1px;
  border-left: 0;
  border-top: 0;
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: clamp(22px, 3.4vw, 40px);
  min-width: 0;
}

.page-faq .faq-kicker {
  margin: 0 0 clamp(12px, 1.6vw, 18px);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--season-accent);
}

.page-faq .faq-hero-copy h1 {
  margin: 0;
  font-size: clamp(2.1rem, 7vw, 4.6rem);
  font-weight: 200;
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-faq .faq-h1-minor {
  display: block;
  margin-bottom: 0.5em;
  font-size: 0.26em;
  font-weight: 500;
  letter-spacing: 0.22em;
  color: var(--season-accent);
}

.page-faq .faq-lede {
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  max-width: 46ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--ink-dim);
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-faq .faq-media {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: 6px 6px 0 rgba(10, 17, 32, 0.65);
}

.page-faq .faq-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.page-faq .faq-media figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ink-dim);
}

/* ---------- 主题索引带 ---------- */

.page-faq .faq-index {
  position: sticky;
  top: var(--header-h);
  z-index: 6;
  background: rgba(10, 17, 32, 0.94);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}

.page-faq .faq-index-inner {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-top: 10px;
  padding-bottom: 10px;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-faq .faq-index-inner::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-index-label {
  flex: none;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-dim);
}

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

.page-faq .faq-index-list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  font-size: 13px;
  white-space: nowrap;
  color: var(--ink-dim);
  text-decoration: none;
  transition: color 200ms var(--ease), border-color 200ms var(--ease), background 200ms var(--ease);
}

.page-faq .faq-index-list a:hover,
.page-faq .faq-index-list a:focus-visible {
  color: var(--ink);
  border-color: var(--season-accent);
  background: var(--season-wash);
}

.page-faq .faq-index-list .num {
  font-size: 11px;
  color: var(--season-accent);
}

/* ---------- 问答分块 ---------- */

.page-faq .faq-block {
  padding: clamp(38px, 6vw, 76px) 0 0;
}

.page-faq .faq-block:last-of-type {
  padding-bottom: clamp(48px, 7vw, 96px);
}

.page-faq .faq-band {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: clamp(16px, 2.4vw, 26px);
  padding: 10px clamp(12px, 2vw, 18px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(90deg, var(--season-wash), transparent 72%);
}

.page-faq .faq-band-no {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--season-accent);
}

.page-faq .faq-band-label {
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-dim);
}

.page-faq .faq-band-line {
  flex: 1;
  height: 1px;
  background: var(--line);
}

.page-faq .faq-block-title {
  margin: 0 0 clamp(18px, 2.6vw, 28px);
  font-size: clamp(1.3rem, 3vw, 2rem);
  font-weight: 500;
  line-height: 1.32;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-faq .faq-list {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-item {
  border-top: 1px solid var(--line);
}

.page-faq .faq-item summary {
  list-style: none;
  cursor: pointer;
}

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

.page-faq .faq-q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: clamp(15px, 2.2vw, 20px) var(--faq-pad-x);
  transition: background 220ms var(--ease);
}

.page-faq .faq-q:hover {
  background: rgba(46, 155, 255, 0.06);
}

.page-faq .faq-q:focus-visible {
  outline: 2px solid var(--season-accent);
  outline-offset: -2px;
}

.page-faq .faq-no {
  flex: none;
  width: var(--faq-no-w);
  padding-top: 4px;
  font-size: 12px;
  font-weight: 700;
  color: var(--line);
  transition: color 220ms var(--ease);
}

.page-faq .faq-item[open] .faq-no {
  color: var(--season-accent);
}

.page-faq .faq-q-text {
  flex: 1;
  min-width: 0;
  font-size: clamp(15px, 1.7vw, 18px);
  font-weight: 500;
  line-height: 1.62;
  color: var(--ink);
}

.page-faq .faq-chevron {
  flex: none;
  position: relative;
  width: 16px;
  height: 16px;
  margin-top: 6px;
}

.page-faq .faq-chevron::before,
.page-faq .faq-chevron::after {
  content: "";
  position: absolute;
  top: 7px;
  left: 1px;
  width: 13px;
  height: 1px;
  background: var(--ink-dim);
  transition: transform 220ms var(--ease), background 220ms var(--ease);
}

.page-faq .faq-chevron::after {
  transform: rotate(90deg);
}

.page-faq .faq-item[open] .faq-chevron::after {
  transform: rotate(0deg);
}

.page-faq .faq-item[open] .faq-chevron::before,
.page-faq .faq-item[open] .faq-chevron::after {
  background: var(--season-accent);
}

.page-faq .faq-a {
  padding: 0 var(--faq-pad-x) clamp(18px, 2.4vw, 24px) 38px;
  font-size: clamp(14px, 1.5vw, 16px);
  line-height: 1.88;
  color: var(--ink-dim);
}

.page-faq .faq-a > p {
  margin: 0 0 0.85em;
}

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

.page-faq .faq-item[open] .faq-a {
  animation: faq-rise 300ms var(--ease) both;
}

@keyframes faq-rise {
  from {
    opacity: 0;
    transform: translateY(-5px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- 答案内元素 ---------- */

.page-faq .faq-steps {
  margin: 0.4em 0 0;
  padding: 0;
  list-style: none;
  counter-reset: faq-step;
}

.page-faq .faq-steps li {
  position: relative;
  counter-increment: faq-step;
  padding: 0 0 14px 34px;
}

.page-faq .faq-steps li::before {
  content: counter(faq-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--font-num);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--season-accent);
}

.page-faq .faq-steps li::after {
  content: "";
  position: absolute;
  left: 9px;
  top: 24px;
  bottom: 3px;
  width: 1px;
  background: var(--line);
}

.page-faq .faq-steps li:last-child {
  padding-bottom: 0;
}

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

.page-faq .faq-note {
  margin: 0.9em 0 0;
  padding: 12px 14px;
  border-left: 3px solid var(--season-accent);
  background: rgba(46, 155, 255, 0.08);
  color: var(--ink);
  font-size: 14px;
  line-height: 1.78;
}

.page-faq .faq-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0.9em 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-tags li {
  padding: 5px 10px;
  border: 1px solid var(--line);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-dim);
}

.page-faq .faq-inline-link {
  color: var(--season-accent);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: border-color 200ms var(--ease);
}

.page-faq .faq-inline-link:hover,
.page-faq .faq-inline-link:focus-visible {
  border-bottom-color: var(--season-accent);
}

/* ---------- 桌面端筛选：问答 + 示意图 ---------- */

.page-faq .faq-split {
  display: block;
}

.page-faq .faq-split-media {
  margin-top: clamp(20px, 3vw, 32px);
}

/* ---------- 联系路径 ---------- */

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

.page-faq .faq-path {
  padding: clamp(18px, 2.4vw, 24px);
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: 5px 5px 0 rgba(10, 17, 32, 0.6);
}

.page-faq .faq-path:first-child {
  border-color: var(--season-accent);
}

.page-faq .faq-path-no {
  margin: 0;
  font-family: var(--font-num);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--season-accent);
}

.page-faq .faq-path h3 {
  margin: 10px 0 8px;
  font-size: 17px;
  font-weight: 500;
  color: var(--ink);
}

.page-faq .faq-path p {
  margin: 0;
  font-size: 14px;
  line-height: 1.82;
  color: var(--ink-dim);
}

.page-faq .faq-path strong {
  color: var(--ink);
  font-weight: 500;
  word-break: break-all;
}

.page-faq .faq-followup {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  margin-top: clamp(22px, 3vw, 34px);
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-dim);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-faq .faq-a {
    padding-left: 50px;
  }
}

@media (min-width: 760px) {
  .page-faq .faq-paths {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: end;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-split {
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr);
    gap: clamp(24px, 3.4vw, 48px);
    align-items: start;
  }

  .page-faq .faq-split-media {
    margin-top: 0;
    position: sticky;
    top: calc(var(--header-h) + 78px);
  }

  .page-faq .faq-media img {
    aspect-ratio: 3 / 4;
  }

  .page-faq .faq-split-media img {
    aspect-ratio: 3 / 4;
  }
}

@media (max-width: 420px) {
  .page-faq .faq-q-text {
    font-size: 15px;
  }

  .page-faq .faq-a {
    padding-left: 30px;
  }

  .page-faq .faq-hero-actions .btn {
    flex: 1 1 auto;
    text-align: center;
  }
}
<<<END>>>