.page-faq {
  --faq-index-w: 264px;
  --faq-body-text: #c3d1de;
  --faq-pad: clamp(1rem, 4vw, 2.5rem);
  color: var(--paper);
  background: var(--ink);
  padding-bottom: clamp(2.5rem, 7vw, 5rem);
}

.page-faq .breadcrumb {
  padding-block: 1rem 0.25rem;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(1.5rem, 4vw, 2.75rem) clamp(2rem, 5vw, 3.25rem);
  background:
    radial-gradient(115% 95% at 84% -20%, rgba(59, 240, 210, 0.16), transparent 62%),
    linear-gradient(180deg, var(--panel), var(--ink) 88%);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  height: 10px;
  background-image: repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 26px);
  opacity: 0.85;
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  align-items: end;
}

.page-faq .faq-hero__copy h1 {
  margin: 0.6rem 0 0.9rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 7vw, 3.5rem);
  line-height: 1.06;
  letter-spacing: -0.015em;
  max-width: 18ch;
}

.page-faq .faq-hero__lede {
  margin: 0;
  max-width: 56ch;
  font-size: clamp(0.95rem, 2.2vw, 1.05rem);
  line-height: 1.75;
  color: var(--faq-body-text);
}

.page-faq .faq-hero__panel {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
  padding: 1.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, rgba(11, 28, 46, 0.9), rgba(17, 24, 32, 0.95));
}

.page-faq .faq-hero__stat {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding-inline-start: 0.7rem;
  border-inline-start: 2px solid var(--teal);
}

.page-faq .faq-hero__num {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 4.4vw, 2rem);
  font-weight: 700;
  color: var(--cyan);
  line-height: 1;
}

.page-faq .faq-hero__label {
  font-size: 0.75rem;
  line-height: 1.4;
  color: var(--muted);
}

.page-faq .faq-hero__note {
  grid-column: 1 / -1;
  margin: 0;
  padding-top: 0.75rem;
  border-top: 1px solid var(--line);
  font-size: 0.8rem;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 分类胶囊 ---------- */
.page-faq .faq-jump {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding-block: 1rem;
  scrollbar-width: thin;
}

.page-faq .faq-chip {
  flex: 0 0 auto;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 0.55rem 1.05rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  font-size: 0.86rem;
  color: var(--paper);
  text-decoration: none;
  background: var(--carbon);
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  border-color: var(--cyan);
  background: rgba(59, 240, 210, 0.1);
  color: var(--cyan);
  outline: none;
}

.page-faq .faq-chip--alert {
  border-color: rgba(255, 194, 71, 0.55);
  color: var(--amber);
}

.page-faq .faq-chip--alert:hover,
.page-faq .faq-chip--alert:focus-visible {
  border-color: var(--amber);
  background: rgba(255, 194, 71, 0.12);
  color: var(--amber);
}

/* ---------- 布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.75rem);
  padding-bottom: 1rem;
}

.page-faq .faq-index {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--carbon);
  padding: 1rem 1.1rem 1.15rem;
}

.page-faq .faq-index__title {
  margin: 0 0 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.15rem;
}

.page-faq .faq-index__list a {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: baseline;
  gap: 0.6rem;
  min-height: 44px;
  padding: 0.55rem 0.4rem;
  border-radius: var(--radius-md);
  color: var(--paper);
  font-size: 0.92rem;
  text-decoration: none;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  background: rgba(59, 240, 210, 0.1);
  color: var(--cyan);
  outline: none;
}

.page-faq .faq-index__no {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted);
}

.page-faq .faq-index__list a:hover .faq-index__no,
.page-faq .faq-index__list a:focus-visible .faq-index__no {
  color: var(--cyan);
}

.page-faq .faq-index__count {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--orange);
}

.page-faq .faq-index__tip {
  margin: 0.9rem 0 0;
  padding-top: 0.8rem;
  border-top: 1px solid var(--line);
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 问答章节 ---------- */
.page-faq .faq-section {
  padding-block: clamp(1.25rem, 4vw, 2rem);
  border-top: 1px solid var(--line);
}

.page-faq .faq-section:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .faq-section__head h2 {
  margin: 0.4rem 0 0.6rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 4.6vw, 2.1rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.page-faq .faq-section__lede {
  margin: 0 0 1.1rem;
  max-width: 62ch;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--faq-body-text);
}

.page-faq .faq-figure {
  margin: 0 0 1rem;
}

.page-faq figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.page-faq .figure__caption {
  margin-top: 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 三步路径 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 0 0 1.2rem;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}

.page-faq .faq-step {
  display: grid;
  gap: 0.4rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: linear-gradient(150deg, rgba(18, 74, 72, 0.35), rgba(17, 24, 32, 0.9));
}

.page-faq .faq-step__num {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--orange);
  line-height: 1;
}

.page-faq .faq-step__text {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--faq-body-text);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-item {
  margin-block: 0.6rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--carbon);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-faq .faq-item:hover {
  border-color: rgba(59, 240, 210, 0.45);
}

.page-faq .faq-item[open] {
  border-color: rgba(59, 240, 210, 0.7);
  box-shadow: inset 3px 0 0 var(--cyan);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  min-height: 44px;
  padding: 0.95rem 1rem;
  cursor: pointer;
  list-style: none;
  border-radius: var(--radius-md);
}

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

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

.page-faq .faq-q {
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--paper);
}

.page-faq .faq-item[open] .faq-q {
  color: var(--cyan);
}

.page-faq .faq-mark {
  position: relative;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin-top: 0.2rem;
}

.page-faq .faq-mark::before,
.page-faq .faq-mark::after {
  content: "";
  position: absolute;
  background: var(--muted);
  transition: transform var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-faq .faq-mark::before {
  inset: 8px 0 auto 0;
  height: 2px;
}

.page-faq .faq-mark::after {
  inset: 0 auto 0 8px;
  width: 2px;
}

.page-faq .faq-item[open] .faq-mark::after {
  transform: scaleY(0);
}

.page-faq .faq-item[open] .faq-mark::before {
  background: var(--cyan);
}

.page-faq .faq-item__body {
  padding: 0 1rem 1.05rem;
  border-top: 1px solid var(--line);
  padding-top: 0.85rem;
  margin-top: 0.1rem;
}

.page-faq .faq-item__body p {
  margin: 0 0 0.7rem;
  font-size: 0.9rem;
  line-height: 1.78;
  color: var(--faq-body-text);
}

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

.page-faq .faq-item__body a,
.page-faq .faq-contact__meta a,
.page-faq .faq-contact__list a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(59, 240, 210, 0.4);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .faq-item__body a:hover,
.page-faq .faq-item__body a:focus-visible,
.page-faq .faq-contact__meta a:hover,
.page-faq .faq-contact__meta a:focus-visible,
.page-faq .faq-contact__list a:hover,
.page-faq .faq-contact__list a:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
  outline: none;
}

/* ---------- 联系客服 ---------- */
.page-faq .faq-contact {
  display: grid;
  gap: 1rem;
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
  padding: clamp(1.1rem, 3.5vw, 1.75rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(90% 120% at 100% 0%, rgba(255, 122, 51, 0.16), transparent 58%),
    linear-gradient(170deg, var(--panel), var(--carbon));
}

.page-faq .faq-contact__panel h2 {
  margin: 0.4rem 0 0.7rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.45rem, 4.4vw, 2rem);
  line-height: 1.2;
}

.page-faq .faq-contact__lede {
  margin: 0 0 1.1rem;
  max-width: 52ch;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--faq-body-text);
}

.page-faq .faq-contact__list {
  margin: 0 0 1.15rem;
  display: grid;
  gap: 0.55rem;
}

.page-faq .faq-contact__row {
  display: grid;
  grid-template-columns: 5.5em 1fr;
  gap: 0.6rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px dashed var(--line);
}

.page-faq .faq-contact__row dt {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--muted);
  padding-top: 0.2rem;
}

.page-faq .faq-contact__row dd {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .faq-contact__meta {
  margin: 0.85rem 0 0;
  font-size: 0.8rem;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-contact .btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.page-faq .faq-contact .btn {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 1.3rem;
  border-radius: var(--radius-pill);
  font-size: 0.9rem;
  text-decoration: none;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-contact .btn--primary {
  background: var(--orange);
  color: #14100c;
  border: 1px solid var(--orange);
  font-weight: 600;
}

.page-faq .faq-contact .btn--primary:hover,
.page-faq .faq-contact .btn--primary:focus-visible {
  background: var(--amber);
  border-color: var(--amber);
  outline: none;
}

.page-faq .faq-contact .btn--ghost {
  border: 1px solid var(--line);
  color: var(--paper);
  background: transparent;
}

.page-faq .faq-contact .btn--ghost:hover,
.page-faq .faq-contact .btn--ghost:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
  outline: none;
}

.page-faq .faq-contact__figure {
  margin: 0;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: center;
  }

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

  .page-faq .faq-layout {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 1.5rem;
  }

  .page-faq .faq-contact {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: stretch;
    gap: clamp(1rem, 3vw, 1.75rem);
  }

  .page-faq .faq-contact__figure img {
    height: 100%;
    min-height: 260px;
  }
}