.page-faq {
  --faq-entry: var(--cyan);
  --faq-room: var(--volt);
  --faq-machine: var(--amber);
  --faq-member: var(--neon);
  display: block;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  padding: calc(var(--bar-h) + var(--gap-2)) 0 var(--gap-2);
  overflow: hidden;
}
.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -10% -20% auto -20%;
  height: 560px;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(58% 68% at 16% 32%, rgba(168, 85, 247, 0.30), transparent 70%),
    radial-gradient(46% 58% at 88% 6%, rgba(47, 123, 255, 0.22), transparent 72%),
    radial-gradient(30% 40% at 62% 78%, rgba(55, 242, 214, 0.12), transparent 70%);
}
.page-faq .faq-hero h1 {
  margin: var(--gap-sm) 0 var(--gap-1);
  max-width: 17ch;
  font-size: clamp(2.05rem, 6.4vw, 4.1rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  text-shadow: 0 0 26px rgba(168, 85, 247, 0.42), 0 0 2px rgba(168, 85, 247, 0.7);
}
.page-faq .faq-hero__lede {
  max-width: 680px;
  font-size: 1.0625rem;
  line-height: 1.75;
  color: rgba(244, 241, 255, 0.84);
}
.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gap-xs);
  margin-top: var(--gap-2);
}
.page-faq .faq-jump a {
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--mist);
  font-size: 0.875rem;
  text-decoration: none;
  transition: color 0.24s var(--ease), border-color 0.24s var(--ease), background 0.24s var(--ease);
}
.page-faq .faq-jump a:hover,
.page-faq .faq-jump a:focus-visible {
  color: var(--cyan);
  border-color: rgba(55, 242, 214, 0.5);
  background: rgba(55, 242, 214, 0.07);
}

/* ---------- 筛选条 ---------- */
.page-faq .faq-shell { margin-top: var(--gap-1); }
.page-faq .faq-filter { margin-bottom: var(--gap-2); }
.page-faq .chip[aria-pressed="true"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--void);
  font-weight: 700;
}
.page-faq .chip[aria-pressed="false"]:hover {
  border-color: rgba(55, 242, 214, 0.45);
  color: var(--ink);
}
.page-faq .chip { cursor: pointer; }

/* ---------- 问题分组 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: var(--gap-3);
}
.page-faq .faq-group {
  --gc: var(--neon);
  position: relative;
  min-width: 0;
}
.page-faq .faq-group--entry { --gc: var(--faq-entry); }
.page-faq .faq-group--room { --gc: var(--faq-room); }
.page-faq .faq-group--machine { --gc: var(--faq-machine); }
.page-faq .faq-group--member { --gc: var(--faq-member); }

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2px var(--gap-sm);
  align-items: baseline;
  margin-bottom: var(--gap-1);
  padding-left: 16px;
  border-left: 4px solid var(--gc);
}
.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.16em;
  color: var(--gc);
}
.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(1.32rem, 3.2vw, 1.95rem);
  line-height: 1.2;
}
.page-faq .faq-group__sub {
  grid-column: 2;
  margin: 4px 0 0;
  max-width: 54ch;
  color: var(--mist);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.page-faq .faq-group__body {
  display: grid;
  gap: 10px;
}

.page-faq .qa {
  border-radius: var(--radius);
  border-left: 2px solid transparent;
  background: linear-gradient(180deg, rgba(23, 12, 41, 0.78), rgba(23, 12, 41, 0.42));
  transition: border-color 0.28s var(--ease), background 0.28s var(--ease), box-shadow 0.28s var(--ease);
}
.page-faq .qa[open] {
  border-left-color: var(--gc);
  background: linear-gradient(180deg, rgba(23, 12, 41, 0.95), rgba(23, 12, 41, 0.6));
  box-shadow: 0 12px 34px -22px rgba(168, 85, 247, 0.8);
}
.page-faq .qa:target {
  box-shadow: 0 0 0 1px rgba(55, 242, 214, 0.45);
}
.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: var(--gap-sm);
  padding: 16px 18px;
  list-style: none;
  cursor: pointer;
  color: var(--ink);
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.6;
}
.page-faq .qa__q::-webkit-details-marker { display: none; }
.page-faq .qa__q::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  line-height: 1;
  color: var(--gc);
  transition: transform 0.28s var(--ease);
}
.page-faq .qa[open] .qa__q::after {
  content: "–";
  transform: translateY(-1px);
}
.page-faq .qa__q:hover { color: #ffffff; }
.page-faq .qa__a {
  padding: 0 18px 18px;
  font-size: 0.9375rem;
  line-height: 1.78;
  color: rgba(244, 241, 255, 0.8);
}
.page-faq .qa__a p { margin: 0; }

/* ---------- 配图 ---------- */
.page-faq .faq-media {
  margin: 0 0 var(--gap-1);
}
.page-faq .faq-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  object-fit: cover;
}

/* ---------- 三步自查 ---------- */
.page-faq .steps {
  display: grid;
  gap: var(--gap-sm);
  margin-top: var(--gap-2);
}
.page-faq .step {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(23, 12, 41, 0.62);
  cursor: pointer;
  transition: border-color 0.28s var(--ease), background 0.28s var(--ease), transform 0.28s var(--ease);
}
.page-faq .step:hover { border-color: rgba(168, 85, 247, 0.5); }
.page-faq .step__check {
  -webkit-appearance: none;
  appearance: none;
  flex: 0 0 22px;
  width: 22px;
  height: 22px;
  margin: 2px 0 0;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: rgba(11, 6, 24, 0.7);
  cursor: pointer;
  position: relative;
}
.page-faq .step__check:checked {
  border-color: var(--cyan);
  background: rgba(55, 242, 214, 0.16);
}
.page-faq .step__check:checked::after {
  content: "";
  position: absolute;
  left: 7px;
  top: 3px;
  width: 6px;
  height: 11px;
  border: solid var(--cyan);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}
.page-faq .step__check:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}
.page-faq .step__index {
  font-family: var(--font-mono);
  font-size: 1.7rem;
  line-height: 1;
  color: var(--ink);
  opacity: 0.32;
  transition: color 0.28s var(--ease), opacity 0.28s var(--ease);
}
.page-faq .step__check:checked ~ .step__index {
  color: var(--cyan);
  opacity: 1;
}
.page-faq .step__body {
  display: grid;
  gap: 6px;
  min-width: 0;
}
.page-faq .step__body strong {
  font-size: 1.0625rem;
  color: var(--ink);
}
.page-faq .step__body span {
  font-size: 0.9375rem;
  line-height: 1.72;
  color: rgba(244, 241, 255, 0.78);
}
.page-faq .step:has(.step__check:checked) {
  border-color: rgba(55, 242, 214, 0.5);
  background: rgba(55, 242, 214, 0.06);
}
.page-faq .steps-note {
  margin: var(--gap-2) 0 var(--gap-sm);
  max-width: 640px;
  color: var(--mist);
  font-size: 0.9375rem;
  line-height: 1.75;
}
.page-faq .steps-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gap-xs);
  margin: 0;
}

/* ---------- 联系收尾 ---------- */
.page-faq .help-grid {
  display: grid;
  gap: var(--gap-1);
  align-items: start;
}
.page-faq .help-copy .prose {
  max-width: 620px;
  color: rgba(244, 241, 255, 0.82);
}
.page-faq .help-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gap-xs);
  margin-top: var(--gap-1);
}
.page-faq .help-card {
  position: relative;
  overflow: hidden;
  padding: 24px;
  border-radius: var(--radius-lg);
  background: linear-gradient(150deg, rgba(47, 123, 255, 0.14), rgba(168, 85, 247, 0.16));
}
.page-faq .help-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: linear-gradient(180deg, var(--amber), var(--neon));
}
.page-faq .help-card__label {
  margin: 0 0 6px;
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--mist);
}
.page-faq .help-card__value {
  margin: 0 0 8px;
  font-size: 1.125rem;
  color: var(--ink);
  word-break: break-all;
}
.page-faq .help-card__note {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: rgba(244, 241, 255, 0.72);
}
.page-faq .help-card .divider {
  margin: var(--gap-1) 0;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero {
    padding-top: calc(var(--bar-h) + var(--gap-3));
  }
  .page-faq .faq-list {
    max-width: 940px;
  }
  .page-faq .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: stretch;
  }
  .page-faq .step {
    flex-direction: column;
    gap: 10px;
  }
  .page-faq .help-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: var(--gap-2);
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-list {
    gap: var(--gap-3);
  }
  .page-faq .faq-group {
    padding-right: var(--gap-1);
  }
  .page-faq .help-card {
    padding: 32px;
  }
}