.page-faq {
  background: var(--sb-cream);
  color: var(--sb-ink);
  font-family: var(--sb-font-body);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: 122px 0 76px;
  background: linear-gradient(158deg, var(--sb-night) 0%, var(--sb-indigo) 58%, #2A1F63 100%);
  color: var(--sb-cream);
}

.page-faq .faq-hero__glow {
  position: absolute;
  z-index: -1;
  top: -34%;
  right: -12%;
  width: min(720px, 92vw);
  height: min(720px, 92vw);
  border-radius: 50%;
  background: radial-gradient(circle at 50% 50%, rgba(255, 138, 31, .46), rgba(255, 194, 75, .14) 48%, transparent 71%);
  pointer-events: none;
  animation: faq-glow 8s var(--sb-ease) infinite alternate;
}

@keyframes faq-glow {
  from { opacity: .55; transform: translate3d(0, 0, 0) scale(1); }
  to   { opacity: .85; transform: translate3d(0, -18px, 0) scale(1.05); }
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--sb-sun), var(--sb-amber) 42%, var(--sb-lake) 100%);
  z-index: 0;
}

.page-faq .faq-hero .sb-breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero .sb-breadcrumb__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.page-faq .faq-hero .sb-breadcrumb__item + .sb-breadcrumb__item::before {
  content: "/";
  color: rgba(247, 242, 232, .38);
}

.page-faq .faq-hero .sb-breadcrumb__link,
.page-faq .faq-hero .sb-breadcrumb__current {
  font-size: .84rem;
  letter-spacing: .04em;
  text-decoration: none;
}

.page-faq .faq-hero .sb-breadcrumb__link { color: rgba(247, 242, 232, .7); }
.page-faq .faq-hero .sb-breadcrumb__link:hover { color: var(--sb-amber); }
.page-faq .faq-hero .sb-breadcrumb__current { color: var(--sb-amber); }

.page-faq .faq-hero__grid {
  display: grid;
  gap: 38px;
  margin-top: 34px;
}

.page-faq .faq-hero .sb-section__index {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-family: var(--sb-font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: .18em;
  color: var(--sb-amber);
}

.page-faq .faq-hero .sb-section__index::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--sb-sun);
}

.page-faq .faq-hero__title {
  margin: .22em 0 0;
  font-family: var(--sb-font-display);
  font-weight: 900;
  font-size: clamp(2.15rem, 6.4vw, 4.3rem);
  line-height: 1.02;
  letter-spacing: -.02em;
}

.page-faq .faq-hero__lede {
  margin: 20px 0 0;
  max-width: 36em;
  font-size: 1.02rem;
  line-height: 1.82;
  color: rgba(247, 242, 232, .82);
}

.page-faq .faq-hero__aside {
  padding: 4px 0 4px 20px;
  border-left: 2px solid rgba(255, 138, 31, .7);
}

.page-faq .faq-hero__aside-k {
  margin: 0 0 16px;
  font-family: var(--sb-font-mono);
  font-size: 11.5px;
  letter-spacing: .18em;
  color: rgba(247, 242, 232, .58);
}

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

.page-faq .faq-hero__facts li {
  font-size: .92rem;
  line-height: 1.6;
  color: rgba(247, 242, 232, .78);
}

.page-faq .faq-hero__facts .sb-data {
  display: inline-block;
  margin-right: .5em;
  font-family: var(--sb-font-mono);
  font-size: 1.12rem;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--sb-amber);
}

/* ---------- 场景标签 ---------- */
.page-faq .faq-tabs {
  background: var(--sb-cream);
  border-bottom: 1px solid rgba(23, 179, 201, .3);
  padding: 16px 0;
}

.page-faq .faq-tabs__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
}

.page-faq .faq-tabs__label {
  font-family: var(--sb-font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: .18em;
  color: var(--sb-lake-deep);
}

.page-faq .faq-tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-tab {
  display: inline-block;
  padding: 7px 15px;
  border-radius: 999px;
  border: 1px solid rgba(14, 124, 140, .42);
  background: var(--sb-white);
  color: var(--sb-lake-deep);
  font-size: .87rem;
  line-height: 1.4;
  text-decoration: none;
  transition: background .2s var(--sb-ease), color .2s var(--sb-ease), border-color .2s var(--sb-ease), transform .2s var(--sb-ease);
}

.page-faq .faq-tab:hover,
.page-faq .faq-tab:focus-visible {
  background: rgba(108, 75, 224, .12);
  border-color: var(--sb-dusk);
  color: var(--sb-dusk);
  transform: translateY(-2px);
}

.page-faq .faq-tab[aria-current="true"],
.page-faq .faq-tab[aria-current="page"] {
  background: var(--sb-dusk);
  border-color: var(--sb-dusk);
  color: var(--sb-white);
}

/* ---------- 主体栅格 ---------- */
.page-faq .faq-body {
  padding: 56px 0 84px;
}

.page-faq .faq-body__grid {
  display: grid;
  gap: 44px;
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-list {
  min-width: 0;
}

.page-faq .faq-item {
  border-top: 1px solid rgba(23, 179, 201, .28);
  scroll-margin-top: 100px;
}

.page-faq .faq-item:last-child {
  border-bottom: 1px solid rgba(23, 179, 201, .28);
}

.page-faq .faq-item__q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 24px 2px 22px;
  cursor: pointer;
  list-style: none;
}

.page-faq .faq-item__q::-webkit-details-marker { display: none; }
.page-faq .faq-item__q::marker { content: ""; }

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--sb-lake);
  outline-offset: 4px;
  border-radius: var(--sb-radius-s);
}

.page-faq .faq-item__num {
  font-family: var(--sb-font-mono);
  font-size: .82rem;
  font-weight: 500;
  letter-spacing: .08em;
  color: var(--sb-mist);
  transition: color .22s var(--sb-ease);
}

.page-faq .faq-item[open] .faq-item__num { color: var(--sb-sun); }

.page-faq .faq-item__text {
  margin: 0;
  font-family: var(--sb-font-display);
  font-weight: 800;
  font-size: clamp(1.05rem, 2.1vw, 1.3rem);
  line-height: 1.42;
  letter-spacing: -.005em;
  color: var(--sb-ink);
}

.page-faq .faq-item__sign {
  position: relative;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1px solid rgba(23, 179, 201, .6);
  background: transparent;
  transition: background .22s var(--sb-ease), border-color .22s var(--sb-ease);
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 10px;
  height: 2px;
  border-radius: 1px;
  background: var(--sb-lake-deep);
  transform: translate(-50%, -50%);
  transition: transform .24s var(--sb-ease), background .22s var(--sb-ease);
}

.page-faq .faq-item__sign::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.page-faq .faq-item[open] .faq-item__sign {
  background: var(--sb-sun);
  border-color: var(--sb-sun);
}

.page-faq .faq-item[open] .faq-item__sign::before,
.page-faq .faq-item[open] .faq-item__sign::after {
  background: var(--sb-white);
}

.page-faq .faq-item[open] .faq-item__sign::after {
  transform: translate(-50%, -50%) rotate(0deg);
}

.page-faq .faq-item__a {
  margin: 0 0 30px 40px;
  padding: 2px 0 2px 22px;
  border-left: 2px solid rgba(23, 179, 201, .3);
  transition: border-color .26s var(--sb-ease);
}

.page-faq .faq-item[open] .faq-item__a {
  border-left-color: var(--sb-sun);
}

.page-faq .faq-item__a p {
  margin: 0 0 1em;
  font-size: 1rem;
  line-height: 1.82;
  color: var(--sb-muted);
}

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

.page-faq .faq-item__a a {
  color: var(--sb-lake-deep);
  text-decoration: underline;
  text-decoration-color: rgba(23, 179, 201, .55);
  text-underline-offset: 3px;
}

.page-faq .faq-item__a a:hover {
  color: var(--sb-sun);
  text-decoration-color: var(--sb-sun);
}

.page-faq .faq-key {
  background: linear-gradient(transparent 58%, rgba(255, 194, 75, .55) 58%);
  color: var(--sb-ink);
  font-weight: 700;
  padding: 0 2px;
}

/* 三步示意 */
.page-faq .faq-steps {
  display: grid;
  gap: 10px;
  margin: 4px 0 22px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 12px 16px;
  background: var(--sb-white);
  border: 1px solid rgba(23, 179, 201, .24);
  border-radius: var(--sb-radius-s);
  box-shadow: var(--sb-shadow-card);
}

.page-faq .faq-step__n {
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  margin-top: 3px;
  border-radius: 50%;
  background: var(--sb-lake);
  color: var(--sb-white);
  font-family: var(--sb-font-mono);
  font-size: .78rem;
  font-weight: 700;
}

.page-faq .faq-step__t {
  font-size: .95rem;
  line-height: 1.65;
  color: var(--sb-ink);
}

/* 图 */
.page-faq .faq-figure {
  margin: 22px 0 6px;
  border-radius: var(--sb-radius-m);
  border: 1px solid rgba(23, 179, 201, .3);
  overflow: hidden;
  background: linear-gradient(135deg, var(--sb-night), var(--sb-lake-deep) 68%, var(--sb-sun));
}

.page-faq .faq-figure.sb-media,
.page-faq .faq-figure.sb-media--square,
.page-faq .faq-figure.sb-media--wide {
  aspect-ratio: auto;
  height: auto;
  display: block;
}

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

.page-faq .faq-figure .sb-media__caption {
  margin: 0;
  padding: 11px 16px 13px;
  background: var(--sb-white);
  border-top: 1px solid rgba(23, 179, 201, .24);
  font-size: .85rem;
  line-height: 1.62;
  color: var(--sb-muted);
}

.page-faq .faq-mail {
  font-family: var(--sb-font-mono);
  font-size: .86rem;
  letter-spacing: .02em;
  color: var(--sb-lake-deep);
  word-break: break-all;
}

/* ---------- 侧栏 ---------- */
.page-faq .faq-side {
  display: grid;
  gap: 20px;
  align-content: start;
  min-width: 0;
}

.page-faq .faq-side__card {
  padding: 26px 24px 28px;
  background: var(--sb-white);
  border: 1px solid rgba(23, 179, 201, .45);
  border-radius: var(--sb-radius-l);
  box-shadow: var(--sb-shadow-card);
}

.page-faq .faq-side__k {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-family: var(--sb-font-mono);
  font-size: 11.5px;
  letter-spacing: .18em;
  color: var(--sb-sun);
}

.page-faq .faq-side__k::before {
  content: "";
  width: 26px;
  height: 5px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--sb-sun), var(--sb-amber));
}

.page-faq .faq-side__title {
  margin: 0 0 12px;
  font-family: var(--sb-font-display);
  font-weight: 800;
  font-size: 1.18rem;
  line-height: 1.4;
  color: var(--sb-ink);
}

.page-faq .faq-side__text {
  margin: 0 0 16px;
  font-size: .93rem;
  line-height: 1.75;
  color: var(--sb-muted);
}

.page-faq .faq-mail--block {
  display: block;
  margin: 0 0 20px;
  padding: 11px 14px;
  border-radius: var(--sb-radius-s);
  background: rgba(23, 179, 201, .09);
  border: 1px dashed rgba(14, 124, 140, .45);
}

.page-faq .faq-side__btn {
  display: inline-block;
  text-decoration: none;
}

.page-faq .faq-side__links {
  padding: 20px 22px 22px;
  border-radius: var(--sb-radius-m);
  border: 1px solid rgba(108, 75, 224, .35);
  background: rgba(255, 255, 255, .68);
}

.page-faq .faq-side__links-k {
  margin: 0 0 14px;
  font-family: var(--sb-font-mono);
  font-size: 11.5px;
  letter-spacing: .18em;
  color: var(--sb-dusk);
}

.page-faq .faq-side__links ul {
  display: grid;
  gap: 11px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-side__links a {
  display: block;
  padding-left: 14px;
  position: relative;
  font-size: .92rem;
  line-height: 1.6;
  color: var(--sb-lake-deep);
  text-decoration: none;
  transition: color .2s var(--sb-ease), padding-left .2s var(--sb-ease);
}

.page-faq .faq-side__links a::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--sb-lake);
  transition: background .2s var(--sb-ease);
}

.page-faq .faq-side__links a:hover {
  color: var(--sb-sun);
  padding-left: 20px;
}

.page-faq .faq-side__links a:hover::before { background: var(--sb-sun); }

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-hero { padding: 132px 0 84px; }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: end;
    gap: 56px;
    margin-top: 46px;
  }

  .page-faq .faq-body { padding: 68px 0 96px; }
}

@media (min-width: 1000px) {
  .page-faq .faq-body__grid {
    grid-template-columns: minmax(0, 7.4fr) minmax(0, 3.4fr);
    gap: 56px;
    align-items: start;
  }

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

@media (max-width: 640px) {
  .page-faq .faq-hero { padding: 104px 0 60px; }
  .page-faq .faq-hero__title { font-size: clamp(1.9rem, 9vw, 2.4rem); }
  .page-faq .faq-item__a {
    margin-left: 0;
    padding-left: 16px;
  }
  .page-faq .faq-item__q {
    gap: 10px;
    padding: 20px 2px 18px;
  }
  .page-faq .faq-step { padding: 11px 13px; }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-hero__glow { animation: none; }
  .page-faq .faq-tab,
  .page-faq .faq-item__num,
  .page-faq .faq-item__sign,
  .page-faq .faq-item__sign::before,
  .page-faq .faq-item__sign::after,
  .page-faq .faq-item__a,
  .page-faq .faq-side__links a {
    transition: none;
  }
  .page-faq .faq-tab:hover { transform: none; }
}