.page-faq {
  --faq-track-w: 216px;
  --faq-gap: clamp(10px, 2vw, 14px);
  display: block;
  position: relative;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding-top: clamp(22px, 4vw, 48px);
  padding-bottom: clamp(30px, 6vw, 64px);
  background:
    radial-gradient(120% 100% at 92% 0%, rgba(139, 92, 246, 0.30), transparent 62%),
    radial-gradient(90% 80% at 0% 100%, rgba(47, 123, 255, 0.20), transparent 64%),
    linear-gradient(180deg, var(--void) 0%, var(--panel) 100%);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(to bottom, rgba(245, 239, 230, 0.055) 0 1px, transparent 1px 6px);
  opacity: 0.5;
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: -8%;
  bottom: -46px;
  width: 116%;
  height: 90px;
  background: linear-gradient(90deg, rgba(46, 242, 208, 0.16), rgba(139, 92, 246, 0.20), rgba(255, 138, 61, 0.14));
  transform: skewY(-3deg);
  pointer-events: none;
}

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

.page-faq .breadcrumb {
  margin-bottom: clamp(14px, 3vw, 24px);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
}

.page-faq .eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.95rem, 5.2vw, 3.5rem);
  line-height: 1.08;
  letter-spacing: -0.015em;
  color: var(--cream);
  margin: 12px 0 16px;
  max-width: 20ch;
}

.page-faq .faq-hero .lede {
  max-width: 56ch;
  margin: 0;
  font-size: var(--fs-body);
  line-height: 1.78;
  color: rgba(245, 239, 230, 0.82);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-faq .faq-hero__actions .btn {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.page-faq .faq-hero__panel {
  margin: 0;
  padding: 16px 18px;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  background: rgba(31, 26, 51, 0.74);
  box-shadow: var(--shadow-card);
  position: relative;
}

.page-faq .faq-hero__panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 46px;
  height: 3px;
  background: var(--cyan);
}

.page-faq .hero-stat {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--line-soft);
}

.page-faq .hero-stat:last-child {
  border-bottom: 0;
  padding-bottom: 2px;
}

.page-faq .hero-stat__label {
  font-size: 0.85rem;
  color: var(--rock);
  line-height: 1.4;
}

.page-faq .hero-stat__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  letter-spacing: 0.02em;
  color: var(--cyan);
  white-space: nowrap;
}

/* ---------- 主体布局 ---------- */
.page-faq .faq-body {
  padding: clamp(26px, 5vw, 52px) 0 clamp(48px, 8vw, 88px);
}

.page-faq .faq-layout {
  display: grid;
  gap: clamp(24px, 3vw, 40px);
}

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

.page-faq .faq-aside__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--rock);
}

.page-faq .track {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

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

.page-faq .track__link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 44px;
  padding: 10px 15px;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: var(--panel);
  color: rgba(245, 239, 230, 0.88);
  text-decoration: none;
  font-size: 0.9rem;
  transition: border-color 180ms var(--ease), color 180ms var(--ease), background 180ms var(--ease);
}

.page-faq .track__link:hover,
.page-faq .track__link:focus-visible {
  border-color: var(--cyan);
  color: var(--cream);
  background: var(--glass);
}

.page-faq .track__num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--violet);
}

.page-faq .faq-main {
  display: grid;
  gap: clamp(34px, 5vw, 62px);
  min-width: 0;
}

/* ---------- 章节 ---------- */
.page-faq .faq-block {
  scroll-margin-top: 84px;
  min-width: 0;
}

.page-faq .faq-block__head {
  display: grid;
  gap: 10px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 22px;
}

.page-faq .faq-block__num {
  width: max-content;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.2em;
  color: var(--violet);
  padding-bottom: 4px;
  border-bottom: 2px solid rgba(139, 92, 246, 0.55);
}

.page-faq .faq-block h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.35rem, 3.1vw, 2rem);
  line-height: 1.2;
  letter-spacing: 0.01em;
  color: var(--cream);
}

.page-faq .faq-block__head p {
  margin: 0;
  max-width: 62ch;
  font-size: 0.95rem;
  line-height: 1.72;
  color: rgba(245, 239, 230, 0.74);
}

/* ---------- 安装前检查 ---------- */
.page-faq .check-grid {
  display: grid;
  gap: clamp(18px, 3vw, 28px);
}

.page-faq .check-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .check-item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--blue);
  border-radius: 3px;
  background: var(--panel);
}

.page-faq .check-item__idx {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--blue);
  padding-top: 3px;
}

.page-faq .check-item h3 {
  margin: 0 0 4px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--cream);
}

.page-faq .check-item p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.68;
  color: rgba(245, 239, 230, 0.74);
}

.page-faq .shot {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
  background: var(--panel);
  position: relative;
}

.page-faq .shot::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(to bottom, rgba(9, 8, 18, 0.16) 0 1px, transparent 1px 4px);
  pointer-events: none;
}

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

.page-faq .shot figcaption {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  line-height: 1.6;
  color: var(--rock);
  padding: 10px 14px;
  border-top: 1px solid var(--line-soft);
}

.page-faq .copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  margin-top: 16px;
  padding: 10px 18px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.07em;
  color: var(--cyan);
  background: transparent;
  border: 1px solid rgba(46, 242, 208, 0.4);
  border-radius: 3px;
  cursor: pointer;
  transition: background 180ms var(--ease), border-color 180ms var(--ease), color 180ms var(--ease);
}

.page-faq .copy-btn:hover,
.page-faq .copy-btn:focus-visible {
  background: rgba(46, 242, 208, 0.12);
  border-color: var(--cyan);
}

/* ---------- 四步安装 ---------- */
.page-faq .step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .step {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 8px 14px;
  padding: 16px 16px 16px 14px;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: var(--panel);
}

.page-faq .step__num {
  font-family: var(--font-mono);
  font-size: 1.28rem;
  line-height: 1.1;
  letter-spacing: 0.02em;
  color: var(--violet);
}

.page-faq .step h3 {
  margin: 0 0 6px;
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--cream);
}

.page-faq .step p {
  margin: 0;
  font-size: 0.91rem;
  line-height: 1.68;
  color: rgba(245, 239, 230, 0.75);
}

.page-faq .step__fallback {
  margin-top: 10px !important;
  padding: 9px 12px;
  border-left: 2px solid var(--amber);
  border-radius: 0 3px 3px 0;
  background: rgba(255, 138, 61, 0.09);
  font-size: 0.85rem !important;
  color: rgba(245, 239, 230, 0.86) !important;
}

.page-faq .step__fallback b {
  color: var(--amber);
  font-weight: 700;
  margin-right: 4px;
}

/* ---------- 房间与人数 ---------- */
.page-faq .room-grid {
  display: grid;
  gap: var(--faq-gap);
  margin-bottom: 20px;
}

.page-faq .room {
  display: grid;
  gap: 7px;
  padding: 16px;
  border: 1px solid var(--line);
  border-top: 3px solid var(--cyan);
  border-radius: 3px;
  background: var(--panel);
}

.page-faq .room:nth-child(2) {
  border-top-color: var(--blue);
}

.page-faq .room:nth-child(3) {
  border-top-color: var(--violet);
}

.page-faq .room__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--rock);
}

.page-faq .room__time {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.32rem;
  line-height: 1.1;
  color: var(--cream);
}

.page-faq .room h3 {
  margin: 0;
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-faq .room:nth-child(2) h3 {
  color: var(--blue);
}

.page-faq .room:nth-child(3) h3 {
  color: var(--violet);
}

.page-faq .meter {
  height: 6px;
  margin: 3px 0;
  border-radius: 99px;
  background: rgba(245, 239, 230, 0.1);
  overflow: hidden;
}

.page-faq .meter__fill {
  display: block;
  height: 100%;
  width: 50%;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
}

.page-faq .room:nth-child(2) .meter__fill {
  width: 75%;
}

.page-faq .room:nth-child(3) .meter__fill {
  width: 100%;
  background: linear-gradient(90deg, var(--violet), var(--coral));
}

.page-faq .room__cap {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: rgba(245, 239, 230, 0.8);
}

.page-faq .room__cap b {
  font-size: 1.12rem;
  color: var(--cyan);
  margin: 0 2px;
}

.page-faq .room .desc {
  margin: 2px 0 0;
  font-size: 0.85rem;
  line-height: 1.62;
  color: rgba(245, 239, 230, 0.7);
}

/* ---------- 筛选与问答 ---------- */
.page-faq .faq-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 12px;
  margin-bottom: 16px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: rgba(31, 26, 51, 0.66);
  backdrop-filter: blur(10px);
}

.page-faq .faq-filter .filter-bar__btn {
  min-height: 44px;
  padding: 8px 14px;
  font-family: var(--font-body);
  font-size: 0.86rem;
  color: rgba(245, 239, 230, 0.78);
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  cursor: pointer;
  transition: background 180ms var(--ease), color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-faq .faq-filter .filter-bar__btn:hover,
.page-faq .faq-filter .filter-bar__btn:focus-visible {
  border-color: var(--cyan);
  color: var(--cream);
}

.page-faq .faq-filter .filter-bar__btn[aria-pressed="true"] {
  color: #ffffff;
  border-color: transparent;
  background: linear-gradient(120deg, rgba(139, 92, 246, 0.95), rgba(47, 123, 255, 0.9));
  box-shadow: 0 6px 18px rgba(139, 92, 246, 0.32);
}

.page-faq .faq-filter .filter-bar__status {
  margin: 0 0 0 auto;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--rock);
}

.page-faq .faq-questions {
  display: block;
  min-width: 0;
}

.page-faq .qa {
  border: 1px solid var(--line);
  border-radius: 3px;
  background: var(--panel);
  margin-bottom: 9px;
  overflow: hidden;
  transition: border-color 180ms var(--ease), background 180ms var(--ease);
}

.page-faq .qa[open] {
  border-color: rgba(46, 242, 208, 0.36);
  background: var(--glass);
}

.page-faq .qa summary {
  display: grid;
  grid-template-columns: 1.6rem minmax(0, 1fr) 16px;
  align-items: center;
  gap: 12px;
  min-height: 44px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -3px;
}

.page-faq .qa__num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--violet);
}

.page-faq .qa__q {
  font-size: 0.94rem;
  font-weight: 600;
  line-height: 1.55;
  color: var(--cream);
}

.page-faq .qa__sign {
  position: relative;
  width: 16px;
  height: 16px;
}

.page-faq .qa__sign::before,
.page-faq .qa__sign::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 12px;
  height: 2px;
  border-radius: 1px;
  background: var(--cyan);
  transform: translate(-50%, -50%);
  transition: transform 200ms var(--ease), opacity 200ms var(--ease);
}

.page-faq .qa__sign::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.page-faq .qa[open] .qa__sign::after {
  transform: translate(-50%, -50%) rotate(0deg);
  opacity: 0;
}

.page-faq .qa__a {
  padding: 0 16px 18px calc(16px + 1.6rem + 12px);
}

.page-faq .qa__a p {
  margin: 0 0 10px;
  font-size: 0.9rem;
  line-height: 1.74;
  color: rgba(245, 239, 230, 0.78);
}

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

.page-faq [data-filter-item][hidden] {
  display: none !important;
}

/* ---------- 联系客服 ---------- */
.page-faq .support-grid {
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .support-card {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--panel);
}

.page-faq .support-card--hot {
  border-color: rgba(139, 92, 246, 0.42);
  background: linear-gradient(145deg, rgba(139, 92, 246, 0.18), rgba(20, 17, 36, 0.96) 62%);
}

.page-faq .support-card h3 {
  margin: 0 0 14px;
  font-size: 1.04rem;
  font-weight: 700;
  color: var(--cream);
}

.page-faq .support-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .support-list li {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 10px;
}

.page-faq .support-list span {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--amber);
  padding-top: 3px;
}

.page-faq .support-list p {
  margin: 0;
  font-size: 0.89rem;
  line-height: 1.68;
  color: rgba(245, 239, 230, 0.78);
}

.page-faq .support-list strong {
  color: var(--cream);
  font-weight: 700;
}

.page-faq .contact-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 10px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--line-soft);
}

.page-faq .contact-row:last-of-type {
  border-bottom: 0;
}

.page-faq .contact-row__key {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--rock);
  min-width: 40px;
}

.page-faq .contact-row__val {
  font-family: var(--font-mono);
  font-size: 0.87rem;
  letter-spacing: 0.02em;
  color: var(--cyan);
  word-break: break-all;
}

.page-faq .support-note {
  margin: 12px 0 0;
  font-size: 0.86rem;
  line-height: 1.7;
  color: rgba(245, 239, 230, 0.7);
}

.page-faq .support-note a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .support-note a:hover {
  color: var(--cyan);
}

.page-faq .support-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.page-faq .support-links .btn {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

/* ---------- 断点 ---------- */
@media (min-width: 680px) {
  .page-faq .room-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.42fr) minmax(0, 1fr);
    align-items: end;
  }

  .page-faq .check-grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: start;
  }

  .page-faq .support-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }
}

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

  .page-faq .faq-aside {
    position: sticky;
    top: 24px;
  }

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

  .page-faq .track__link {
    justify-content: flex-start;
    border-left: 2px solid transparent;
  }

  .page-faq .track__link:hover,
  .page-faq .track__link:focus-visible {
    border-left-color: var(--cyan);
  }

  .page-faq .step {
    grid-template-columns: 56px minmax(0, 1fr);
    padding: 18px 20px 18px 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .qa__sign::before,
  .page-faq .qa__sign::after,
  .page-faq .track__link,
  .page-faq .copy-btn,
  .page-faq .faq-filter .filter-bar__btn {
    transition: none;
  }
}
<<<END>>>