.page-faq {
  --faq-cut: 18px 18px 18px 4px;
  --faq-orange-ink: #B8420E;
  --faq-teal-ink: #12795F;
  background: var(--void);
  color: var(--mist);
  font-family: var(--sans);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(16px, 3vw, 26px) 0 clamp(40px, 7vw, 78px);
  background:
    radial-gradient(760px 380px at 92% -12%, rgba(255, 106, 43, 0.22), transparent 64%),
    radial-gradient(620px 340px at 4% 6%, rgba(43, 214, 176, 0.12), transparent 70%),
    linear-gradient(168deg, var(--night) 0%, var(--void) 74%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(115deg, rgba(139, 163, 186, 0.07) 0 1px, transparent 1px 46px);
  pointer-events: none;
}

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

.page-faq .breadcrumbs {
  margin-bottom: clamp(20px, 4vw, 34px);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 5vw, 46px);
  align-items: start;
}

.page-faq .faq-hero__title {
  margin: 10px 0 16px;
  font-size: clamp(29px, 5.2vw, 54px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--mist);
}

.page-faq .faq-hero__lead {
  max-width: 48ch;
  margin: 0;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.8;
  color: rgba(234, 242, 250, 0.84);
}

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

/* ---------- 症状面板 ---------- */
.page-faq .symptom-panel {
  position: relative;
  padding: clamp(14px, 2.4vw, 20px);
  background: var(--glass-bg);
  border: 1px solid var(--hair);
  border-radius: var(--faq-cut);
  backdrop-filter: blur(10px);
  box-shadow: 0 24px 60px rgba(4, 14, 28, 0.45);
}

.page-faq .symptom-panel__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--hair);
}

.page-faq .symptom-panel__label {
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--teal);
}

.page-faq .symptom-panel__hint {
  font-size: 13px;
  color: var(--line);
}

.page-faq .symptom-panel__list {
  list-style: none;
  margin: 0;
  padding: 6px 0 0;
}

.page-faq .symptom {
  display: grid;
  grid-template-columns: 14px 1fr auto;
  align-items: center;
  gap: 12px;
  min-height: 56px;
  padding: 12px 10px;
  border-bottom: 1px solid var(--hair-soft);
  border-radius: 10px;
  color: var(--mist);
  text-decoration: none;
  transition: background 180ms var(--ease), transform 180ms var(--ease);
}

.page-faq .symptom-panel__list li:last-child .symptom {
  border-bottom: 0;
}

.page-faq .symptom:hover {
  background: rgba(255, 106, 43, 0.12);
  transform: translateX(2px);
}

.page-faq .symptom:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}

.page-faq .symptom__text {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.page-faq .symptom__text strong {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-faq .symptom__text em {
  font-style: normal;
  font-size: 13px;
  line-height: 1.5;
  color: var(--line);
}

.page-faq .symptom__num {
  font-size: 13px;
  color: var(--orange);
}

.page-faq .symptom__light {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.page-faq .symptom__light--hot {
  background: var(--orange);
  box-shadow: 0 0 0 4px rgba(255, 106, 43, 0.18);
  animation: faq-pulse 2.8s ease-in-out infinite;
}

.page-faq .symptom__light--warm {
  background: var(--orange-soft);
  box-shadow: 0 0 0 4px rgba(255, 160, 107, 0.16);
}

.page-faq .symptom__light--ok {
  background: var(--teal);
  box-shadow: 0 0 0 4px rgba(43, 214, 176, 0.16);
  animation: faq-pulse 3.4s ease-in-out infinite;
}

.page-faq .symptom-panel__foot {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--hair-soft);
  font-size: 13px;
  line-height: 1.6;
  color: var(--line);
}

@keyframes faq-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.55; }
}

/* ---------- 章节带 ---------- */
.page-faq .faq-band {
  position: relative;
  padding: clamp(38px, 7vw, 80px) 0;
}

.page-faq .faq-band--dark {
  background: linear-gradient(180deg, var(--void) 0%, var(--night) 100%);
}

.page-faq .faq-band--night {
  background: var(--night);
}

.page-faq .faq-band--glass {
  background: linear-gradient(180deg, var(--night) 0%, var(--glass) 100%);
}

.page-faq .faq-band--paper {
  background: var(--paper);
  color: var(--ink);
}

.page-faq .chapter {
  margin-bottom: clamp(14px, 3vw, 20px);
}

.page-faq .chapter__title {
  color: var(--mist);
}

.page-faq .faq-band--paper .chapter__title {
  color: var(--ink);
}

.page-faq .faq-band--paper .chapter__num {
  color: var(--faq-teal-ink);
}

.page-faq .faq-band__lead {
  max-width: 64ch;
  margin: 0 0 clamp(22px, 4vw, 34px);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: rgba(234, 242, 250, 0.82);
}

.page-faq .faq-band--paper .faq-band__lead {
  color: rgba(10, 15, 22, 0.78);
}

.page-faq .faq-link {
  color: var(--orange-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-band--paper .faq-link {
  color: var(--faq-orange-ink);
}

.page-faq .faq-link:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
  border-radius: 3px;
}

.page-faq .faq-sub {
  margin: 0 0 12px;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink);
}

/* ---------- A01 登录两步 ---------- */
.page-faq .login-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 4vw, 36px);
  align-items: start;
}

.page-faq .fix-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .fix-step {
  padding: 20px 20px 20px 22px;
  background: #FFFDF8;
  border: 1px solid rgba(10, 15, 22, 0.1);
  border-left: 4px solid var(--orange);
  border-radius: 14px 14px 14px 4px;
  box-shadow: 0 10px 26px rgba(10, 15, 22, 0.07);
  transition: transform 180ms var(--ease), box-shadow 180ms var(--ease);
}

.page-faq .fix-step:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 34px rgba(10, 15, 22, 0.11);
}

.page-faq .fix-step__num {
  display: block;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--faq-orange-ink);
}

.page-faq .fix-step__title {
  margin: 6px 0 8px;
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-faq .fix-step p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(10, 15, 22, 0.76);
}

.page-faq .login-figure {
  margin: 0;
}

.page-faq .login-figure__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: 14px 14px 14px 4px;
  border: 1px solid rgba(10, 15, 22, 0.14);
  max-width: 100%;
}

.page-faq .login-figure__cap {
  margin-top: 10px;
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(10, 15, 22, 0.64);
}

/* ---------- A02 入口排查 ---------- */
.page-faq .entry-flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-faq .entry-step {
  position: relative;
  padding: 22px 20px;
  background: var(--glass-bg);
  border: 1px solid var(--hair);
  border-radius: var(--faq-cut);
  transition: background 200ms var(--ease), transform 200ms var(--ease);
}

.page-faq .entry-step:hover {
  background: var(--glass-bg-hover);
  transform: translateY(-2px);
}

.page-faq .entry-step__num {
  display: inline-block;
  padding: 3px 9px;
  font-size: 12.5px;
  color: var(--void);
  background: var(--orange);
  border-radius: 6px;
}

.page-faq .entry-step__title {
  margin: 12px 0 8px;
  font-size: 18px;
  font-weight: 800;
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--mist);
}

.page-faq .entry-step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(234, 242, 250, 0.78);
}

.page-faq .entry-flow__foot {
  margin: 22px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--line);
}

/* ---------- 问答手风琴 ---------- */
.page-faq .qa-list {
  display: grid;
  gap: 12px;
}

.page-faq .qa {
  background: rgba(22, 62, 102, 0.36);
  border: 1px solid var(--hair);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color 180ms var(--ease), background 180ms var(--ease);
}

.page-faq .qa:hover {
  border-color: rgba(255, 106, 43, 0.42);
}

.page-faq .qa[open] {
  background: rgba(22, 62, 102, 0.58);
  border-color: rgba(43, 214, 176, 0.42);
}

.page-faq .qa__q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 56px;
  padding: 15px 18px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--mist);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa__q::after {
  content: "+";
  flex: none;
  font-family: var(--mono);
  font-size: 18px;
  color: var(--orange);
}

.page-faq .qa[open] .qa__q::after {
  content: "−";
  color: var(--teal);
}

.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: -3px;
}

.page-faq .qa__a {
  margin: 0 18px 18px;
  padding-top: 14px;
  border-top: 1px solid var(--hair-soft);
  font-size: 15px;
  line-height: 1.85;
  color: rgba(234, 242, 250, 0.8);
}

/* ---------- A04 手机端兼容 ---------- */
.page-faq .mobile-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 4vw, 40px);
  align-items: start;
}

.page-faq .mobile-figure {
  margin: 0;
}

.page-faq .mobile-figure__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  border-radius: 16px 16px 16px 4px;
  border: 1px solid var(--hair);
}

.page-faq .mobile-figure__cap {
  margin-top: 10px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--line);
}

/* ---------- A05 人工支持 ---------- */
.page-faq .support-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 3vw, 26px);
  align-items: start;
}

.page-faq .support-card {
  padding: clamp(18px, 3vw, 26px);
  background: #FFFDF8;
  border: 1px solid rgba(10, 15, 22, 0.12);
  border-radius: 16px 16px 16px 4px;
  box-shadow: 0 14px 34px rgba(10, 15, 22, 0.08);
}

.page-faq .support-card--plain {
  background: transparent;
  border-style: dashed;
  box-shadow: none;
}

.page-faq .support-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  padding: 13px 0;
  border-bottom: 1px solid rgba(10, 15, 22, 0.1);
}

.page-faq .support-row:last-child {
  border-bottom: 0;
}

.page-faq .support-row__label {
  flex: 0 0 76px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: rgba(10, 15, 22, 0.55);
}

.page-faq .support-row__value {
  flex: 1 1 180px;
  min-width: 0;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--ink);
  word-break: break-word;
}

.page-faq .support-row__value.mono {
  font-family: var(--mono);
}

.page-faq .faq-copy {
  min-height: 44px;
  padding: 6px 16px;
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 700;
  color: var(--faq-orange-ink);
  background: transparent;
  border: 1px solid rgba(184, 66, 14, 0.4);
  border-radius: 999px;
  cursor: pointer;
  transition: background 160ms var(--ease), color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-faq .faq-copy:hover {
  color: #FFFFFF;
  background: var(--orange);
  border-color: var(--orange);
}

.page-faq .faq-copy:focus-visible {
  outline: 2px solid var(--faq-teal-ink);
  outline-offset: 2px;
}

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

.page-faq .check-list li {
  position: relative;
  padding-left: 26px;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(10, 15, 22, 0.78);
}

.page-faq .check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  background: var(--teal);
  box-shadow: 0 0 0 3px rgba(43, 214, 176, 0.22);
}

.page-faq .support-note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed rgba(10, 15, 22, 0.16);
  font-size: 14px;
  line-height: 1.75;
  color: rgba(10, 15, 22, 0.68);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-faq .symptom {
    grid-template-columns: 14px 1fr auto;
    padding: 13px 12px;
  }
}

@media (min-width: 860px) {
  .page-faq .entry-flow {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .page-faq .entry-step {
    display: flex;
    flex-direction: column;
    min-height: 100%;
  }

  .page-faq .entry-step::after {
    content: "";
    position: absolute;
    top: 34px;
    right: -20px;
    width: 20px;
    height: 1px;
    background: linear-gradient(90deg, var(--orange), rgba(255, 106, 43, 0));
  }

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

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: clamp(32px, 5vw, 56px);
  }

  .page-faq .login-grid {
    grid-template-columns: 1fr 0.82fr;
    gap: clamp(26px, 4vw, 44px);
  }

  .page-faq .mobile-grid {
    grid-template-columns: 0.6fr 1fr;
    gap: clamp(28px, 4vw, 48px);
  }

  .page-faq .support-grid {
    grid-template-columns: 1.05fr 0.95fr;
  }

  .page-faq .mobile-figure {
    position: sticky;
    top: 96px;
  }
}

@media (min-width: 1120px) {
  .page-faq .qa-list {
    gap: 14px;
  }

  .page-faq .qa__q {
    font-size: 16.5px;
    padding: 16px 22px;
  }

  .page-faq .qa__a {
    margin: 0 22px 20px;
    font-size: 15.5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq [data-reveal],
  .page-faq .symptom,
  .page-faq .fix-step,
  .page-faq .entry-step,
  .page-faq .qa {
    transition: none;
    transform: none;
  }

  .page-faq .symptom__light--hot,
  .page-faq .symptom__light--ok {
    animation: none;
  }
}