.page-faq {
  --faq-rail-w: 268px;
  --faq-accent-gold: rgba(246, 185, 74, 0.42);
  --faq-accent-cyan: rgba(54, 226, 208, 0.4);
  position: relative;
  background:
    radial-gradient(120% 70% at 82% -8%, rgba(54, 226, 208, 0.1), transparent 62%),
    radial-gradient(90% 60% at 4% 8%, rgba(246, 185, 74, 0.07), transparent 60%),
    var(--ink-900);
  color: var(--paper);
  font-family: var(--font-body);
  padding-block: clamp(16px, 3vw, 28px) clamp(56px, 8vw, 108px);
  overflow-x: clip;
}

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

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-block: clamp(8px, 2vw, 20px) clamp(28px, 5vw, 56px);
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: 18px;
  max-width: 960px;
}

.page-faq .faq-hero__inner .eyebrow {
  color: var(--cyan);
  letter-spacing: 0.16em;
}

.page-faq .faq-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 6.4vw, 4.1rem);
  line-height: 0.98;
  letter-spacing: -0.02em;
  max-width: 20ch;
}

.page-faq .faq-hero .lede {
  margin: 0;
  max-width: 62ch;
  color: var(--sand);
  font-size: clamp(0.96rem, 2.4vw, 1.06rem);
  line-height: 1.8;
}

.page-faq .faq-stats {
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.page-faq .faq-stats li {
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: linear-gradient(160deg, rgba(16, 42, 71, 0.86), rgba(11, 30, 54, 0.7));
}

.page-faq .faq-stats__num {
  font-family: var(--font-mono);
  font-size: clamp(1.15rem, 3.4vw, 1.5rem);
  font-weight: 700;
  color: var(--gold);
  letter-spacing: -0.01em;
}

.page-faq .faq-stats li:last-child .faq-stats__num {
  color: var(--cyan);
  font-size: clamp(1rem, 3vw, 1.25rem);
}

.page-faq .faq-stats__unit {
  font-size: 0.62em;
  margin-left: 2px;
  color: var(--sand);
}

.page-faq .faq-stats__label {
  font-size: 0.78rem;
  color: var(--mist);
  line-height: 1.5;
}

/* ---------- 布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
}

/* ---------- 左侧分类轨道 ---------- */
.page-faq .faq-rail {
  display: grid;
  gap: 14px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(11, 30, 54, 0.9), rgba(6, 17, 31, 0.72));
}

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

.page-faq .faq-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-faq .faq-rail__link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  color: var(--paper);
  font-size: 0.9rem;
  text-decoration: none;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .faq-rail__dot {
  width: 7px;
  height: 7px;
  flex: none;
  border-radius: 50%;
  background: var(--mist);
  transition: background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  background: var(--cyan-soft);
  border-color: var(--faq-accent-cyan);
  color: var(--cyan);
  outline: none;
}

.page-faq .faq-rail__link:hover .faq-rail__dot,
.page-faq .faq-rail__link:focus-visible .faq-rail__dot {
  background: var(--cyan);
  box-shadow: 0 0 0 4px var(--cyan-soft);
}

.page-faq .faq-rail__link--gold:hover,
.page-faq .faq-rail__link--gold:focus-visible {
  background: var(--gold-soft);
  border-color: var(--faq-accent-gold);
  color: var(--gold);
}

.page-faq .faq-rail__link--gold:hover .faq-rail__dot,
.page-faq .faq-rail__link--gold:focus-visible .faq-rail__dot {
  background: var(--gold);
  box-shadow: 0 0 0 4px var(--gold-soft);
}

.page-faq .faq-rail__card {
  display: grid;
  gap: 8px;
  padding: 16px;
  border-radius: var(--radius-md);
  background:
    radial-gradient(120% 100% at 100% 0%, rgba(54, 226, 208, 0.16), transparent 70%),
    var(--ink-700);
  border: 1px solid var(--line);
}

.page-faq .faq-rail__card-title {
  margin: 0;
  font-size: 0.94rem;
  font-weight: 700;
  color: var(--paper);
}

.page-faq .faq-rail__card-text {
  margin: 0;
  font-size: 0.8rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-rail__card .btn {
  justify-self: start;
  margin-top: 4px;
  font-size: 0.82rem;
}

/* ---------- 右侧问答流 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: clamp(34px, 6vw, 72px);
  min-width: 0;
}

.page-faq .faq-section {
  display: grid;
  gap: 16px;
  scroll-margin-top: 96px;
}

.page-faq .faq-section__head {
  display: grid;
  gap: 8px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-section__head .eyebrow {
  color: var(--mist);
  font-family: var(--font-mono);
  letter-spacing: 0.14em;
}

.page-faq .faq-section .section-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 4.4vw, 2.4rem);
  line-height: 1.06;
  letter-spacing: -0.015em;
}

.page-faq .faq-section__note {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 0.84rem;
  line-height: 1.65;
  color: var(--mist);
}

/* ---------- 手风琴 ---------- */
.page-faq .qa {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(165deg, rgba(16, 42, 71, 0.88), rgba(11, 30, 54, 0.82));
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-faq .qa[open] {
  box-shadow: var(--shadow-lift);
}

.page-faq .qa--gold[open] {
  border-color: var(--faq-accent-gold);
}

.page-faq .qa--cyan[open] {
  border-color: var(--faq-accent-cyan);
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: clamp(15px, 2.4vw, 20px) clamp(16px, 2.6vw, 24px);
  cursor: pointer;
  list-style: none;
  font-size: clamp(0.94rem, 2.5vw, 1rem);
  font-weight: 700;
  line-height: 1.55;
  color: var(--paper);
  border-radius: var(--radius-lg);
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}

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

.page-faq .qa__q::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 1.25rem;
  line-height: 1;
  color: var(--mist);
  transition: transform var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .qa[open] .qa__q::after {
  transform: rotate(45deg);
}

.page-faq .qa--gold[open] .qa__q::after {
  color: var(--gold);
}

.page-faq .qa--cyan[open] .qa__q::after {
  color: var(--cyan);
}

.page-faq .qa__q:hover {
  color: var(--cyan);
}

.page-faq .qa--gold .qa__q:hover {
  color: var(--gold);
}

.page-faq .qa__q:focus-visible {
  outline: none;
  box-shadow: inset 0 0 0 2px var(--cyan);
}

.page-faq .qa__idx {
  flex: none;
  font-size: 0.74rem;
  line-height: 1.9;
  color: var(--mist);
  letter-spacing: 0.06em;
}

.page-faq .qa--gold .qa__idx {
  color: var(--gold);
}

.page-faq .qa--cyan .qa__idx {
  color: var(--cyan);
}

.page-faq .qa__a {
  padding: 0 clamp(16px, 2.6vw, 24px) clamp(16px, 2.6vw, 22px) calc(clamp(16px, 2.6vw, 24px) + 30px);
}

.page-faq .qa__a p {
  margin: 0;
  max-width: 66ch;
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--sand);
}

.page-faq .qa__a p + p {
  margin-top: 10px;
}

.page-faq .qa__a a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .qa__a a:hover {
  color: var(--gold);
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 6px 0 0;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--ink-800);
  overflow: hidden;
}

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

.page-faq .faq-figure .media-frame__label {
  display: block;
  padding: 10px 16px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--mist);
  border-top: 1px solid var(--line);
}

/* ---------- 使用记录 + 月历 ---------- */
.page-faq .records-grid {
  display: grid;
  gap: 16px;
}

.page-faq .records-copy {
  display: grid;
  gap: 10px;
  min-width: 0;
}

.page-faq .calendar {
  display: grid;
  gap: 10px;
  padding: 16px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(54, 226, 208, 0.22);
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(54, 226, 208, 0.12), transparent 65%),
    var(--ink-800);
}

.page-faq .calendar__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-faq .calendar__week,
.page-faq .calendar__grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 5px;
}

.page-faq .calendar__week span {
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--mist);
}

.page-faq .calendar__day {
  display: grid;
  place-items: center;
  aspect-ratio: 1 / 1;
  border-radius: 9px;
  background: rgba(6, 17, 31, 0.6);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--mist);
}

.page-faq .calendar__day--on {
  color: var(--gold);
  background: var(--gold-soft);
  border: 1px solid var(--faq-accent-gold);
  font-weight: 700;
}

.page-faq .calendar__legend {
  display: flex;
  align-items: center;
  gap: 7px;
  margin: 0;
  font-size: 0.74rem;
  color: var(--mist);
}

.page-faq .calendar__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gold);
}

/* ---------- 联系客服 ---------- */
.page-faq .faq-section--support {
  padding-top: clamp(6px, 2vw, 14px);
}

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

.page-faq .support-card {
  display: grid;
  gap: 12px;
  padding: clamp(18px, 3vw, 26px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: linear-gradient(165deg, rgba(16, 42, 71, 0.9), rgba(11, 30, 54, 0.8));
}

.page-faq .support-card--muted {
  background: linear-gradient(165deg, rgba(11, 30, 54, 0.9), rgba(6, 17, 31, 0.8));
}

.page-faq .support-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.14rem;
  letter-spacing: -0.01em;
}

.page-faq .support-card .contact-list {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 8px 16px;
  margin: 0;
  align-items: baseline;
}

.page-faq .support-card .contact-list__key {
  font-size: 0.78rem;
  color: var(--mist);
  letter-spacing: 0.04em;
}

.page-faq .support-card .contact-list__val {
  margin: 0;
  font-size: 0.92rem;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .support-card .contact-list__val a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(54, 226, 208, 0.4);
}

.page-faq .support-card .contact-list__val a:hover {
  color: var(--gold);
  border-color: rgba(246, 185, 74, 0.5);
}

.page-faq .support-card .contact-note {
  margin: 0;
  padding: 12px 14px;
  border-left: 2px solid var(--gold);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: var(--gold-soft);
  font-size: 0.8rem;
  line-height: 1.7;
  color: var(--sand);
}

.page-faq .support-card .btn {
  justify-self: start;
}

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

.page-faq .support-list li {
  position: relative;
  padding-left: 18px;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--sand);
}

.page-faq .support-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
}

.page-faq .support-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
}

.page-faq .support-links a {
  font-size: 0.82rem;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .support-links a:hover,
.page-faq .support-links a:focus-visible {
  color: var(--cyan);
  border-color: rgba(54, 226, 208, 0.5);
  outline: none;
}

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

  .page-faq .records-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
  }

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

/* ---------- 桌面：左侧轨道 + 右侧问答 ---------- */
@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: clamp(28px, 3.6vw, 52px);
  }

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

  .page-faq .faq-hero__inner {
    gap: 22px;
  }

  .page-faq .faq-figure {
    margin-top: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .qa__q,
  .page-faq .qa__q::after,
  .page-faq .faq-rail__link,
  .page-faq .faq-rail__dot,
  .page-faq .support-links a {
    transition: none;
  }
}