.page-faq {
  --faq-pill-fill: rgba(255, 122, 69, .08);
  --faq-cyan-soft: rgba(55, 240, 208, .34);
  --faq-dash: rgba(30, 74, 58, .9);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 4vw, 46px) 0 clamp(26px, 3.6vw, 44px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 150% at 88% -25%, rgba(55, 240, 208, .11) 0%, transparent 58%),
    linear-gradient(180deg, var(--panel) 0%, var(--ink) 100%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(0deg, rgba(232, 242, 238, .035) 0 1px, transparent 1px 4px);
  opacity: .55;
}

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

.page-faq .breadcrumb {
  margin-bottom: 18px;
}

.page-faq .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: .75rem;
  letter-spacing: .08em;
  color: var(--muted);
}

.page-faq .breadcrumb a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .breadcrumb a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan-line);
}

.page-faq .faq-hero .eyebrow {
  display: inline-block;
  margin: 0 0 12px;
}

.page-faq .faq-hero h1 {
  margin: 0 0 16px;
  max-width: 24ch;
  font-family: var(--font-cn);
  font-weight: 800;
  font-size: clamp(2rem, 5.6vw, 3.5rem);
  line-height: 1.08;
  letter-spacing: -.02em;
  color: var(--fog);
  text-shadow: 0 0 24px rgba(55, 240, 208, .18);
}

.page-faq .faq-hero__lede {
  margin: 0 0 24px;
  max-width: 68ch;
  font-size: clamp(.94rem, 1.6vw, 1.05rem);
  line-height: 1.8;
  color: var(--fog-88);
}

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

.page-faq .faq-hero__jump a {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(10, 31, 24, .72);
  color: var(--fog-88);
  font-size: .87rem;
  text-decoration: none;
  transition: border-color .22s var(--ease), color .22s var(--ease), background .22s var(--ease);
}

.page-faq .faq-hero__jump a:hover {
  border-color: var(--cyan-line);
  background: rgba(18, 48, 38, .92);
  color: var(--cyan);
}

.page-faq .faq-hero__jump .num {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .1em;
  color: var(--cyan);
}

/* ---------- 首图 ---------- */
.page-faq .faq-figure {
  margin: clamp(24px, 3.4vw, 40px) 0 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: var(--radius);
  object-fit: cover;
  background: var(--panel-2);
}

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

.page-faq .faq-figure--side img {
  aspect-ratio: 4 / 3;
}

.page-faq .faq-figure .media-frame__cap {
  margin-top: 10px;
  font-size: .76rem;
  letter-spacing: .04em;
  color: var(--muted);
}

/* ---------- 分类筛选 ---------- */
.page-faq .faq-filter {
  position: sticky;
  top: 0;
  z-index: 6;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
  background: rgba(5, 20, 15, .94);
  backdrop-filter: blur(8px);
}

.page-faq .faq-filter .switch {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 2px;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

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

.page-faq .faq-filter .switch button {
  flex: 0 0 auto;
  appearance: none;
  cursor: pointer;
  padding: 8px 15px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font-family: var(--font-cn);
  font-size: .82rem;
  letter-spacing: .02em;
  white-space: nowrap;
  transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}

.page-faq .faq-filter .switch button:hover {
  color: var(--fog);
  border-color: var(--cyan-line);
}

.page-faq .faq-filter .switch button[aria-pressed="true"] {
  color: var(--fog);
  border-color: var(--orange);
  background: var(--faq-pill-fill);
}

/* ---------- 正文骨架 ---------- */
.page-faq .faq-body {
  padding: clamp(30px, 4.5vw, 62px) 0 clamp(42px, 6vw, 84px);
}

.page-faq .faq-block {
  margin-top: clamp(28px, 4vw, 48px);
  padding-top: clamp(28px, 4vw, 48px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-block:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.page-faq .faq-block__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px 18px;
  align-items: start;
  margin-bottom: clamp(18px, 2.6vw, 28px);
}

.page-faq .faq-block__num {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 4vw, 2.3rem);
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--faq-cyan-soft);
}

.page-faq .faq-block__title {
  margin: 0 0 8px;
  font-size: clamp(1.14rem, 2.6vw, 1.58rem);
  letter-spacing: -.01em;
  color: var(--fog);
}

.page-faq .faq-block__sub {
  margin: 0;
  max-width: 62ch;
  font-size: .9rem;
  line-height: 1.72;
  color: var(--muted);
}

.page-faq .faq-block__note {
  margin: 0 0 clamp(18px, 2.6vw, 26px);
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--cyan);
  border-radius: var(--radius);
  background: var(--panel-2);
  font-size: .88rem;
  line-height: 1.75;
  color: var(--fog-88);
}

.page-faq .faq-block__foot {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: clamp(20px, 2.8vw, 30px) 0 0;
}

.page-faq .faq-block--media .faq-block__grid {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
}

/* ---------- 手风琴 ---------- */
.page-faq .accordion {
  display: grid;
  gap: 10px;
}

.page-faq .accordion__item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  overflow: hidden;
  transition: border-color .25s var(--ease);
}

.page-faq .accordion__item:hover {
  border-color: rgba(55, 240, 208, .32);
}

.page-faq .accordion__btn {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  width: 100%;
  padding: 15px 16px;
  border: 0;
  background: transparent;
  cursor: pointer;
  text-align: left;
  color: var(--fog-88);
  font-family: var(--font-cn);
  font-size: .95rem;
  line-height: 1.6;
}

.page-faq .accordion__idx {
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .14em;
  color: var(--cyan);
}

.page-faq .faq-q {
  font-weight: 600;
  letter-spacing: .01em;
}

.page-faq .accordion__sign {
  position: relative;
  width: 12px;
  height: 12px;
}

.page-faq .accordion__sign::before,
.page-faq .accordion__sign::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform .25s var(--ease), opacity .25s var(--ease);
}

.page-faq .accordion__sign::before {
  top: 5px;
  left: 0;
  width: 12px;
  height: 1.5px;
}

.page-faq .accordion__sign::after {
  top: 0;
  left: 5px;
  width: 1.5px;
  height: 12px;
}

.page-faq .accordion__btn[aria-expanded="true"] .accordion__sign::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .accordion__panel[data-open="false"] {
  display: none;
}

.page-faq .accordion__inner {
  position: relative;
  padding: 2px 16px 18px 30px;
}

.page-faq .accordion__inner::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 2px;
  bottom: 18px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan) 0%, rgba(55, 240, 208, .05) 100%);
}

.page-faq .faq-sym {
  margin: 0 0 14px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--orange);
  border-radius: var(--radius);
  background: var(--panel-2);
  font-size: .85rem;
  line-height: 1.7;
  color: var(--fog-88);
}

.page-faq .steps {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  align-items: start;
}

.page-faq .step__k {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .14em;
  color: var(--cyan);
}

.page-faq .step__t {
  font-size: .88rem;
  line-height: 1.76;
  color: var(--fog-88);
}

.page-faq .faq-alt {
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--faq-dash);
  font-size: .79rem;
  line-height: 1.72;
  letter-spacing: .01em;
  color: var(--muted);
}

/* ---------- 联系区块 ---------- */
.page-faq .faq-contact {
  display: grid;
  gap: clamp(18px, 3vw, 34px);
}

.page-faq .faq-contact__lead p {
  margin: 0 0 14px;
  max-width: 60ch;
  font-size: .93rem;
  line-height: 1.82;
  color: var(--fog-88);
}

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

.page-faq .faq-contact__lead .faq-alt {
  margin-top: 18px;
}

.page-faq .faq-contact__list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  align-content: start;
}

.page-faq .contact-item {
  display: grid;
  gap: 4px;
  padding: 13px 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  transition: border-color .22s var(--ease);
}

.page-faq .contact-item:hover {
  border-color: var(--yellow-line);
}

.page-faq .contact-item__k {
  font-size: .68rem;
  letter-spacing: .18em;
  color: var(--muted);
}

.page-faq .contact-item__v {
  font-family: var(--font-mono);
  font-size: .92rem;
  color: var(--fog);
  word-break: break-all;
}

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

  .page-faq .faq-filter .switch button {
    font-size: .85rem;
  }
}

@media (min-width: 860px) {
  .page-faq .faq-contact {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-block--media .faq-block__grid {
    grid-template-columns: minmax(0, 1fr) 280px;
    align-items: start;
  }

  .page-faq .faq-block__head {
    gap: 12px 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-hero__jump a,
  .page-faq .accordion__item,
  .page-faq .contact-item,
  .page-faq .faq-filter .switch button,
  .page-faq .accordion__sign::before,
  .page-faq .accordion__sign::after {
    transition: none;
  }
}