.page-faq {
  --faq-topgap: clamp(24px, 4vw, 48px);
  display: block;
  background: var(--hbs-charcoal);
  color: var(--hbs-white);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--hbs-line);
  background:
    radial-gradient(118% 88% at 90% -12%, rgba(255, 90, 31, .22), transparent 56%),
    radial-gradient(90% 70% at 4% 108%, rgba(47, 224, 208, .12), transparent 60%),
    linear-gradient(162deg, var(--hbs-ink) 0%, var(--hbs-charcoal) 64%);
}

.page-faq .faq-hero__texture {
  position: absolute;
  top: -20%;
  right: -8%;
  width: min(520px, 62vw);
  height: auto;
  opacity: .14;
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  padding-top: var(--faq-topgap);
  padding-bottom: clamp(28px, 4.5vw, 54px);
}

.page-faq .faq-hero__eyebrow {
  margin-top: clamp(18px, 3vw, 28px);
  color: var(--hbs-orange);
}

.page-faq .faq-hero__title {
  margin: 10px 0 0;
  font-family: var(--hbs-font-head);
  font-weight: 900;
  letter-spacing: -.02em;
  line-height: 1.06;
  font-size: clamp(2rem, 5.8vw, 3.4rem);
  max-width: 22ch;
  text-wrap: balance;
}

.page-faq .faq-hero__lead {
  margin: 16px 0 0;
  max-width: 62ch;
  color: var(--hbs-mist);
}

/* 搜索 */
.page-faq .faq-search {
  margin-top: clamp(20px, 3vw, 30px);
  max-width: 520px;
}

.page-faq .faq-search__field {
  position: relative;
}

.page-faq .faq-search__icon {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--hbs-cyan);
  font-size: 17px;
  line-height: 1;
  pointer-events: none;
}

.page-faq .faq-search__input {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  padding: 14px 18px 14px 44px;
  border-radius: var(--hbs-pill);
  border: 1px solid var(--hbs-line);
  background: rgba(22, 35, 58, .82);
  color: var(--hbs-white);
  font-family: var(--hbs-font-body);
  font-size: 15px;
  appearance: none;
}

.page-faq .faq-search__input::placeholder {
  color: var(--hbs-mist-dim);
}

.page-faq .faq-search__input:focus-visible {
  outline: 2px solid var(--hbs-orange);
  outline-offset: 2px;
}

.page-faq .faq-search__hint {
  margin: 9px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--hbs-mist-dim);
}

/* 三问速答 */
.page-faq .faq-quick {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: clamp(24px, 4vw, 40px);
}

.page-faq .faq-quick__card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px;
  border-radius: var(--hbs-r-lg);
  border: 1px solid var(--hbs-line);
  background: linear-gradient(180deg, rgba(16, 26, 43, .94), rgba(11, 13, 16, .9));
  text-decoration: none;
  color: inherit;
  transition: border-color .18s var(--hbs-ease), box-shadow .18s var(--hbs-ease);
}

.page-faq .faq-quick__card:hover {
  border-color: var(--hbs-orange);
  box-shadow: 0 10px 30px rgba(255, 90, 31, .12);
}

.page-faq .faq-quick__no {
  font-family: var(--hbs-font-num);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--hbs-lime);
}

.page-faq .faq-quick__q {
  margin: 0;
  font-family: var(--hbs-font-head);
  font-weight: 800;
  font-size: 17px;
  line-height: 1.4;
  letter-spacing: -.01em;
  color: var(--hbs-white);
}

.page-faq .faq-quick__a {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--hbs-mist);
}

.page-faq .faq-quick__go {
  margin-top: auto;
  padding-top: 12px;
  font-family: var(--hbs-font-num);
  font-size: 13px;
  color: var(--hbs-cyan);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 36px);
  padding-top: clamp(32px, 5vw, 56px);
  padding-bottom: clamp(48px, 8vw, 96px);
}

/* 目录 */
.page-faq .faq-toc {
  border: 1px solid var(--hbs-line);
  border-radius: var(--hbs-r-lg);
  background: rgba(16, 26, 43, .6);
  padding: 16px 16px 14px;
}

.page-faq .faq-toc__title {
  margin: 0;
  font-family: var(--hbs-font-editorial);
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--hbs-mist);
}

.page-faq .faq-toc__list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0 0 4px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-toc__link {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 8px 14px;
  border-radius: var(--hbs-pill);
  border: 1px solid transparent;
  color: var(--hbs-mist);
  text-decoration: none;
  font-size: 14px;
  white-space: nowrap;
  transition: color .16s var(--hbs-ease), border-color .16s var(--hbs-ease), background-color .16s var(--hbs-ease);
}

.page-faq .faq-toc__link:hover,
.page-faq .faq-toc__link:focus-visible {
  color: var(--hbs-white);
  border-color: var(--hbs-line);
  background: rgba(22, 35, 58, .8);
}

.page-faq .faq-toc__no {
  font-family: var(--hbs-font-num);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--hbs-orange);
}

/* ---------- 章节 ---------- */
.page-faq .faq-chapter {
  scroll-margin-top: 104px;
  padding: clamp(28px, 4vw, 44px) 0;
  border-top: 1px solid var(--hbs-line-soft);
}

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

.page-faq .faq-chapter__head {
  display: flex;
  align-items: center;
  gap: 14px;
}

.page-faq .faq-chapter__no {
  flex: none;
  font-family: var(--hbs-font-num);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--hbs-orange);
  border: 1px solid currentColor;
  border-radius: var(--hbs-pill);
  padding: 3px 11px;
  line-height: 1.3;
}

.page-faq .faq-chapter--cyan .faq-chapter__no {
  color: var(--hbs-cyan);
}

.page-faq .faq-chapter--lime .faq-chapter__no {
  color: var(--hbs-lime);
}

.page-faq .faq-chapter__title {
  margin: 0;
  font-family: var(--hbs-font-head);
  font-weight: 900;
  letter-spacing: -.02em;
  font-size: clamp(1.3rem, 3.2vw, 1.85rem);
  line-height: 1.2;
}

.page-faq .faq-chapter.is-current .faq-chapter__title {
  color: var(--hbs-white);
}

.page-faq .faq-chapter__cue {
  margin: 12px 0 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--hbs-mist);
}

/* 示意图 */
.page-faq .faq-figure {
  margin: clamp(18px, 3vw, 26px) 0 0;
  border-radius: var(--hbs-r-lg);
  overflow: hidden;
  border: 1px solid var(--hbs-line);
  background: var(--hbs-ink);
}

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

.page-faq .faq-figure .hbs-media__caption {
  padding: 12px 16px 14px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--hbs-mist-dim);
  border-top: 1px solid var(--hbs-line-soft);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  margin-top: clamp(16px, 2.6vw, 24px);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--hbs-line-soft);
  border-radius: 0 var(--hbs-r-md) var(--hbs-r-md) 0;
  transition: background-color .18s var(--hbs-ease), box-shadow .18s var(--hbs-ease);
}

.page-faq .faq-item:first-child {
  border-top: 1px solid var(--hbs-line-soft);
}

.page-faq .faq-item[open] {
  background: var(--hbs-ink);
  box-shadow: inset 3px 0 0 var(--hbs-orange);
}

.page-faq .faq-chapter--cyan .faq-item[open] {
  box-shadow: inset 3px 0 0 var(--hbs-cyan);
}

.page-faq .faq-chapter--lime .faq-item[open] {
  box-shadow: inset 3px 0 0 var(--hbs-lime);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 14px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--hbs-white);
}

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

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--hbs-orange);
  outline-offset: -2px;
}

.page-faq .faq-item__q::after {
  content: "+";
  flex: none;
  margin-left: auto;
  padding-top: 3px;
  font-family: var(--hbs-font-num);
  font-size: 18px;
  line-height: 1;
  color: var(--hbs-orange);
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "−";
}

.page-faq .faq-item__no {
  flex: none;
  padding-top: 4px;
  font-family: var(--hbs-font-num);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--hbs-mist-dim);
}

.page-faq .faq-item__a {
  padding: 0 16px 20px 16px;
}

.page-faq .faq-item__a p {
  margin: 0;
  max-width: 68ch;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--hbs-mist);
}

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

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

.page-faq .faq-item__a a:hover {
  color: var(--hbs-orange);
}

/* ---------- 尾部引导 ---------- */
.page-faq .faq-outro {
  margin-top: clamp(28px, 4vw, 44px);
  padding: clamp(22px, 3.4vw, 32px);
  border-radius: var(--hbs-r-xl);
  border: 1px solid var(--hbs-line);
  background:
    linear-gradient(120deg, rgba(255, 90, 31, .16), transparent 58%),
    var(--hbs-ink-2);
}

.page-faq .faq-outro__title {
  margin: 0;
  font-family: var(--hbs-font-head);
  font-weight: 900;
  font-size: clamp(1.15rem, 2.8vw, 1.5rem);
  letter-spacing: -.015em;
}

.page-faq .faq-outro__text {
  margin: 12px 0 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--hbs-mist);
}

.page-faq .faq-outro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

/* ---------- 断点 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-quick {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-item__q {
    padding: 18px 18px;
  }

  .page-faq .faq-item__a {
    padding: 0 22px 22px 52px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-body {
    grid-template-columns: minmax(0, 1fr) 242px;
    column-gap: clamp(40px, 6vw, 76px);
    align-items: start;
  }

  .page-faq .faq-toc {
    grid-column: 2;
    grid-row: 1;
    position: sticky;
    top: 104px;
    padding: 20px;
  }

  .page-faq .faq-content {
    grid-column: 1;
    grid-row: 1;
  }

  .page-faq .faq-toc__list {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-toc__link {
    white-space: normal;
    padding: 9px 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-quick__card,
  .page-faq .faq-item,
  .page-faq .faq-toc__link {
    transition: none;
  }
}