.page-faq {
  --faq-side: 236px;
  --faq-text: #C6D6E1;
  background-color: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  padding-bottom: clamp(56px, 9vw, 104px);
  overflow-x: hidden;
}

.page-faq a:focus-visible,
.page-faq summary:focus-visible,
.page-faq input:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 3px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  padding-block: clamp(26px, 5vw, 56px) clamp(28px, 5vw, 60px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(90% 78% at 100% 0%, rgba(41, 240, 190, 0.14), transparent 62%),
    linear-gradient(180deg, var(--panel) 0%, var(--ink) 100%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(to right, rgba(34, 64, 92, 0.55) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(34, 64, 92, 0.55) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.34;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 88%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 88%);
  pointer-events: none;
}

.page-faq .faq-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 22px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mute);
}

.page-faq .faq-crumb a {
  color: var(--mute);
  text-decoration: none;
  transition: color 0.16s var(--ease);
}

.page-faq .faq-crumb a:hover {
  color: var(--mint);
}

.page-faq .faq-crumb span[aria-current] {
  color: var(--mint);
}

.page-faq .faq-hero__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(56px, 17vw, 144px);
  line-height: 0.92;
  letter-spacing: -0.03em;
  color: var(--paper);
}

.page-faq .faq-hero__lede {
  margin-top: 20px;
  max-width: 60ch;
  color: var(--mute);
  font-size: 16px;
  line-height: 1.8;
}

.page-faq .faq-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.page-faq .faq-chips .chip {
  text-decoration: none;
  transition: border-color 0.16s var(--ease), color 0.16s var(--ease);
}

.page-faq .faq-chips .chip:hover {
  border-color: var(--mint);
  color: var(--mint);
}

.page-faq .faq-stats {
  list-style: none;
  margin: clamp(26px, 5vw, 44px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-faq .faq-stats li {
  padding: 16px 18px;
  background: var(--raise);
}

.page-faq .faq-stats .num {
  display: block;
  font-size: clamp(24px, 6vw, 34px);
  line-height: 1;
  color: var(--mint);
  letter-spacing: -0.01em;
}

.page-faq .faq-stats .unit {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mute);
  margin-left: 6px;
}

.page-faq .faq-stats small {
  display: block;
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.06em;
  color: var(--mute);
  font-family: var(--font-body);
}

/* ---------- 区块骨架 ---------- */
.page-faq .faq-section {
  padding-block: clamp(34px, 6vw, 72px);
}

.page-faq .faq-section--band {
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, var(--panel) 0%, var(--ink) 45%);
}

.page-faq .faq-section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 20px;
  margin-bottom: clamp(20px, 3.4vw, 32px);
}

.page-faq .faq-section__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 5.2vw, 40px);
  line-height: 1.06;
  letter-spacing: -0.02em;
}

.page-faq .faq-section__note {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--mute);
}

/* ---------- 分类卡 ---------- */
.page-faq .faq-cats {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--gap);
}

.page-faq .faq-cat {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--raise);
  color: inherit;
  text-decoration: none;
  transition: border-color 0.16s var(--ease), transform 0.16s var(--ease), background 0.16s var(--ease);
}

.page-faq .faq-cat:hover {
  border-color: var(--mint);
  transform: translateY(-2px);
  background: #17293E;
}

.page-faq .faq-cat__count {
  font-size: 40px;
  line-height: 1;
  color: var(--mint);
}

.page-faq .faq-cat__count span {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--mute);
  margin-left: 6px;
}

.page-faq .faq-cat h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -0.01em;
  line-height: 1.15;
}

.page-faq .faq-cat p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mute);
}

.page-faq .faq-cat__go {
  margin-top: auto;
  padding-top: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--mint);
}

/* ---------- 左锚点 + 右手风琴 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 4vw, 40px);
}

.page-faq .faq-nav {
  list-style: none;
  margin: 12px 0 0;
  padding: 0 0 4px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-nav__link {
  display: block;
  white-space: nowrap;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: var(--pill);
  background: var(--panel);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mute);
  text-decoration: none;
  transition: color 0.16s var(--ease), border-color 0.16s var(--ease);
}

.page-faq .faq-nav__link:hover {
  color: var(--mint);
  border-color: var(--mint);
}

.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
}

.page-faq .faq-item {
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--panel);
  overflow: hidden;
  transition: border-color 0.16s var(--ease), background 0.16s var(--ease);
}

.page-faq .faq-item[open] {
  border-color: rgba(41, 240, 190, 0.55);
  background: var(--raise);
}

.page-faq .faq-item__summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 18px 18px;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .faq-item__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(17px, 2.4vw, 22px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-item__sign {
  position: relative;
  width: 26px;
  height: 26px;
  flex: none;
  border: 1px solid var(--line);
  border-radius: var(--pill);
  transition: border-color 0.16s var(--ease);
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--mint);
  transform: translate(-50%, -50%);
  transition: opacity 0.16s var(--ease);
}

.page-faq .faq-item__sign::before {
  width: 11px;
  height: 1.5px;
}

.page-faq .faq-item__sign::after {
  width: 1.5px;
  height: 11px;
}

.page-faq .faq-item[open] .faq-item__sign {
  border-color: var(--mint);
}

.page-faq .faq-item[open] .faq-item__sign::after {
  opacity: 0;
}

.page-faq .faq-item__body {
  padding: 4px 18px 22px;
  border-top: 1px solid rgba(34, 64, 92, 0.7);
  margin-top: 2px;
  padding-top: 18px;
}

.page-faq .faq-item__body > p {
  margin: 0 0 16px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--faq-text);
}

.page-faq .inline-link {
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid rgba(41, 240, 190, 0.4);
  padding-bottom: 1px;
  transition: border-color 0.16s var(--ease);
}

.page-faq .inline-link:hover {
  border-bottom-color: var(--mint);
}

/* ---------- 编号步骤 ---------- */
.page-faq .steps {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-faq .step {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  grid-template-rows: auto auto;
  gap: 8px 12px;
  padding: 14px 16px;
  border: 1px solid rgba(34, 64, 92, 0.8);
  border-radius: var(--r-md);
  background: rgba(6, 9, 15, 0.42);
}

.page-faq .step__num {
  grid-column: 1;
  grid-row: 1;
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: var(--pill);
  background: var(--mint);
  color: var(--ink);
  font-size: 13px;
}

.page-faq .step__text {
  grid-column: 2;
  grid-row: 1;
  min-width: 0;
}

.page-faq .step__title {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
}

.page-faq .step__text p + p {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--faq-text);
}

.page-faq .step__mark {
  grid-column: 2;
  grid-row: 2;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: max-content;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mute);
  cursor: pointer;
}

.page-faq .step__mark input {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: transparent;
  cursor: pointer;
  transition: background 0.16s var(--ease), border-color 0.16s var(--ease);
}

.page-faq .step__mark input:checked {
  background: var(--mint);
  border-color: var(--mint);
}

.page-faq .step__mark input:checked + span {
  color: var(--mint);
}

/* ---------- 提示框 ---------- */
.page-faq .tip {
  margin: 0;
  padding: 14px 16px 14px 18px;
  border-left: 3px solid var(--amber);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  background: rgba(255, 162, 58, 0.09);
  font-size: 14px;
  line-height: 1.75;
  color: var(--paper);
  max-width: 66ch;
}

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

/* ---------- 图片容器 ---------- */
.page-faq .media-frame {
  margin: 20px 0;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--raise);
  overflow: hidden;
}

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

.page-faq .media-frame__caption {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.03em;
  color: var(--mute);
}

/* ---------- 状态列表 ---------- */
.page-faq .status-list {
  list-style: none;
  margin: 18px 0 20px;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
}

.page-faq .status-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: rgba(6, 9, 15, 0.4);
}

.page-faq .status-list b {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--mint);
  padding-top: 2px;
}

.page-faq .status-list span {
  font-size: 13.5px;
  line-height: 1.68;
  color: var(--faq-text);
}

/* ---------- 反馈收尾 ---------- */
.page-faq .feedback-card {
  position: relative;
  padding: clamp(22px, 4vw, 40px);
  border: 1px solid var(--line);
  border-left: 3px solid var(--amber);
  border-radius: var(--r-lg);
  background: linear-gradient(158deg, var(--raise) 0%, var(--panel) 70%);
}

.page-faq .feedback-card .eyebrow {
  display: block;
  margin-bottom: 12px;
  color: var(--amber);
}

.page-faq .feedback-lede {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--faq-text);
}

.page-faq .materials {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-faq .materials li {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: rgba(6, 9, 15, 0.36);
}

.page-faq .materials .eyebrow {
  display: block;
  margin-bottom: 8px;
  color: var(--amber);
}

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

.page-faq .feedback-timing {
  margin: 24px 0 0;
  padding: 14px 16px;
  border-radius: var(--r-md);
  background: rgba(41, 240, 190, 0.07);
  border: 1px solid rgba(41, 240, 190, 0.28);
  font-size: 14px;
  line-height: 1.75;
  color: var(--paper);
  max-width: 70ch;
}

.page-faq .feedback-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .feedback-contact {
  margin: 24px 0 0;
  padding-top: 18px;
  border-top: 1px dashed var(--line);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.9;
  color: var(--mute);
  word-break: break-word;
}

.page-faq .feedback-contact a {
  color: var(--mint);
  text-decoration: none;
}

.page-faq .feedback-contact a:hover {
  text-decoration: underline;
}

/* ---------- 媒体查询 ---------- */
@media (min-width: 640px) {
  .page-faq .status-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 720px) {
  .page-faq .faq-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-faq .faq-item__summary {
    padding: 20px 24px;
  }

  .page-faq .faq-item__body {
    padding: 18px 24px 26px;
  }
}

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

  .page-faq .faq-side {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    align-self: start;
  }

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

  .page-faq .faq-nav__link {
    border-radius: var(--r-sm) var(--pill) var(--pill) var(--r-sm);
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-cats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-cat,
  .page-faq .faq-item,
  .page-faq .step__mark input,
  .page-faq .faq-item__sign::before,
  .page-faq .faq-item__sign::after {
    transition: none;
  }

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