.page-faq {
  --faq-line: rgba(200, 138, 61, 0.26);
  --faq-glass: rgba(13, 42, 66, 0.55);
  --faq-card: rgba(13, 42, 66, 0.42);
  background: var(--abyss);
  color: var(--paper);
  overflow-x: hidden;
}

.page-faq h1,
.page-faq h2,
.page-faq h3 {
  margin: 0;
  font-family: var(--font-head);
  letter-spacing: 0.06em;
  line-height: 1.18;
  font-weight: 800;
}

.page-faq p,
.page-faq li,
.page-faq dd {
  margin: 0;
}

.page-faq .breadcrumbs {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  margin-bottom: 22px;
}

.page-faq .breadcrumbs a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-faq .breadcrumbs a:hover,
.page-faq .breadcrumbs a:focus-visible {
  color: var(--accent-lt);
  border-bottom-color: var(--faq-line);
}

.page-faq .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--accent-lt);
  margin-bottom: 14px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding-block: clamp(36px, 6vw, 76px) clamp(32px, 5vw, 60px);
  border-bottom: 1px solid var(--line-soft);
  background:
    radial-gradient(circle at 84% 14%, rgba(200, 138, 61, 0.17), transparent 46%),
    linear-gradient(180deg, #04121f 0%, var(--abyss) 74%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(154, 169, 184, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(154, 169, 184, 0.07) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.85), transparent 78%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.85), transparent 78%);
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(28px, 4vw, 52px);
}

.page-faq .faq-hero__coord {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--accent);
  padding-left: 34px;
  position: relative;
  margin-bottom: 16px;
}

.page-faq .faq-hero__coord::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 24px;
  height: 1px;
  background: var(--accent);
}

.page-faq .faq-hero h1 {
  font-size: clamp(2rem, 7vw, 4rem);
  max-width: 18ch;
}

.page-faq .faq-hero__lead {
  margin-top: 20px;
  max-width: 56ch;
  font-size: clamp(0.95rem, 1.6vw, 1.06rem);
  line-height: 1.85;
  color: rgba(244, 240, 232, 0.82);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .btn {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
}

.page-faq .btn:focus-visible {
  outline: 2px solid var(--accent-lt);
  outline-offset: 3px;
}

.page-faq .faq-hero__stats {
  list-style: none;
  padding: 0;
  margin-top: 34px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-soft);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-stat {
  background: var(--abyss);
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.page-faq .faq-stat__num {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 4vw, 2rem);
  line-height: 1;
  color: var(--accent);
}

.page-faq .faq-stat__label {
  font-size: 12px;
  line-height: 1.5;
  color: var(--mist);
}

.page-faq .faq-hero__panel {
  position: relative;
  border: 1px solid var(--line);
  border-left: 2px solid var(--accent);
  background: var(--faq-glass);
  padding: clamp(20px, 3vw, 30px);
  backdrop-filter: blur(6px);
}

.page-faq .faq-hero__panel-title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--accent-lt);
  margin-bottom: 18px;
}

.page-faq .faq-quick {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-faq .faq-quick__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "no label"
    "no desc";
  column-gap: 14px;
  align-items: start;
  padding-bottom: 16px;
  border-bottom: 1px dashed var(--line-soft);
}

.page-faq .faq-quick__item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-quick__no {
  grid-area: no;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--accent);
  line-height: 1.2;
}

.page-faq .faq-quick__label {
  grid-area: label;
  font-family: var(--font-head);
  font-size: 1.02rem;
  letter-spacing: 0.08em;
  color: var(--paper);
}

.page-faq .faq-quick__desc {
  grid-area: desc;
  margin-top: 4px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-hero__panel-foot {
  margin-top: 20px;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  font-size: 12px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 章节跳转条 ---------- */
.page-faq .faq-jump {
  background: rgba(7, 27, 44, 0.78);
  border-bottom: 1px solid var(--line-soft);
}

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

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

.page-faq .faq-jump__link {
  display: inline-block;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
  text-decoration: none;
  border: 1px solid var(--line);
  padding: 8px 12px;
  transition: color 160ms linear, border-color 160ms linear;
}

.page-faq .faq-jump__link:hover,
.page-faq .faq-jump__link:focus-visible {
  color: var(--accent-lt);
  border-color: var(--accent-line);
}

/* ---------- 通用区块 ---------- */
.page-faq .faq-section {
  padding-block: clamp(44px, 7vw, 92px);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-head {
  margin-bottom: clamp(26px, 4vw, 44px);
  max-width: 62ch;
}

.page-faq .faq-head__title {
  font-size: clamp(1.4rem, 4vw, 2.2rem);
}

.page-faq .faq-head__desc {
  margin-top: 14px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 三步入门 ---------- */
.page-faq .faq-step-grid {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-faq .faq-step {
  background: var(--abyss);
  padding: clamp(22px, 3.4vw, 36px);
  position: relative;
  transition: background 180ms linear;
}

.page-faq .faq-step:hover {
  background: var(--deep);
}

.page-faq .faq-step__no {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(2.4rem, 7vw, 3.6rem);
  line-height: 1;
  color: rgba(200, 138, 61, 0.45);
  margin-bottom: 16px;
}

.page-faq .faq-step__title {
  font-size: 1.1rem;
  color: var(--paper);
  margin-bottom: 10px;
}

.page-faq .faq-step__text {
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 规则六步 ---------- */
.page-faq .faq-rules__layout {
  display: grid;
  gap: clamp(24px, 3.5vw, 44px);
}

.page-faq .faq-rules__grid {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-rule {
  border: 1px solid var(--line);
  border-left: 2px solid var(--faq-line);
  background: var(--faq-card);
  padding: 18px 20px;
  display: grid;
  gap: 8px;
  transition: border-left-color 180ms linear, background 180ms linear;
}

.page-faq .faq-rule:hover {
  border-left-color: var(--accent);
  background: rgba(13, 42, 66, 0.66);
}

.page-faq .faq-rule__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--accent);
}

.page-faq .faq-rule__title {
  font-size: 1.02rem;
  color: var(--paper);
}

.page-faq .faq-rule__text {
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--mist);
}

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

.page-faq .img-frame {
  position: relative;
  border: 1px solid var(--line);
  background: var(--deep);
  overflow: hidden;
}

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

.page-faq .img-frame__caption {
  display: block;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.04em;
  color: var(--mist);
  border-left: 1px solid var(--accent-line);
  padding-left: 12px;
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-qa {
  display: grid;
  gap: 10px;
  max-width: 78ch;
}

.page-faq .faq-qa__item {
  border: 1px solid var(--line);
  background: var(--faq-card);
  transition: border-color 160ms linear, background 160ms linear;
}

.page-faq .faq-qa__item[open] {
  border-color: var(--accent-line);
  background: rgba(13, 42, 66, 0.7);
}

.page-faq .faq-qa__item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-size: clamp(0.98rem, 2.4vw, 1.1rem);
  letter-spacing: 0.05em;
  color: var(--paper);
}

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

.page-faq .faq-qa__item summary:focus-visible {
  outline: 2px solid var(--accent-lt);
  outline-offset: -2px;
}

.page-faq .faq-qa__sign {
  position: relative;
  flex: none;
  width: 14px;
  height: 14px;
}

.page-faq .faq-qa__sign::before,
.page-faq .faq-qa__sign::after {
  content: "";
  position: absolute;
  background: var(--accent);
  transition: transform 200ms linear, opacity 200ms linear;
}

.page-faq .faq-qa__sign::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 1px;
}

.page-faq .faq-qa__sign::after {
  top: 0;
  left: 6px;
  width: 1px;
  height: 14px;
}

.page-faq .faq-qa__item[open] .faq-qa__sign::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-qa__body {
  padding: 0 18px 18px;
  border-top: 1px solid var(--line-soft);
  margin-top: 0;
  padding-top: 14px;
}

.page-faq .faq-qa__body p {
  font-size: 14px;
  line-height: 1.9;
  color: rgba(244, 240, 232, 0.8);
}

/* ---------- 下载 ---------- */
.page-faq .faq-dl__layout {
  display: grid;
  gap: clamp(24px, 3.5vw, 40px);
}

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

.page-faq .faq-dl__step {
  position: relative;
  padding: 18px 20px 18px 62px;
  border: 1px solid var(--line);
  background: var(--faq-card);
}

.page-faq .faq-dl__no {
  position: absolute;
  left: 18px;
  top: 18px;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--accent);
  line-height: 1.2;
}

.page-faq .faq-dl__title {
  font-size: 1.02rem;
  color: var(--paper);
  margin-bottom: 6px;
}

.page-faq .faq-dl__text {
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--mist);
}

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

.page-faq .faq-dl__more {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 20px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 回访 ---------- */
.page-faq .faq-return {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

.page-faq .faq-return__text {
  margin-top: 14px;
  font-size: 14.5px;
  line-height: 1.9;
  color: rgba(244, 240, 232, 0.82);
  max-width: 56ch;
}

.page-faq .faq-return__actions {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-return__card {
  border: 1px solid var(--line);
  border-top: 2px solid var(--mint);
  background: var(--faq-glass);
  padding: clamp(20px, 3vw, 28px);
  align-self: start;
}

.page-faq .faq-return__card-title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--mint);
  margin-bottom: 16px;
}

.page-faq .faq-return__row {
  display: grid;
  gap: 2px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--line-soft);
}

.page-faq .faq-return__row:last-of-type {
  border-bottom: 0;
}

.page-faq .faq-return__key {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-faq .faq-return__val {
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .faq-return__note {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 术语表 ---------- */
.page-faq .faq-terms {
  display: grid;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  margin: 0;
}

.page-faq .faq-term {
  background: var(--abyss);
  padding: 14px 16px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "no name"
    "no desc";
  column-gap: 12px;
  align-items: baseline;
}

.page-faq .faq-term__no {
  grid-area: no;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--accent);
  border: 1px solid var(--faq-line);
  padding: 2px 5px;
  line-height: 1.4;
}

.page-faq .faq-term__name {
  grid-area: name;
  font-family: var(--font-head);
  font-size: 0.98rem;
  letter-spacing: 0.08em;
  color: var(--paper);
}

.page-faq .faq-term__desc {
  grid-area: desc;
  margin-top: 4px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 结尾 ---------- */
.page-faq .faq-outro {
  padding-block: clamp(44px, 6vw, 84px);
  background:
    radial-gradient(circle at 12% 30%, rgba(200, 138, 61, 0.16), transparent 52%),
    var(--deep);
  border-top: 1px solid var(--accent-line);
}

.page-faq .faq-outro__title {
  font-size: clamp(1.3rem, 3.6vw, 2rem);
  max-width: 22ch;
}

.page-faq .faq-outro__text {
  margin-top: 14px;
  max-width: 60ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(244, 240, 232, 0.8);
}

.page-faq .faq-outro__links {
  list-style: none;
  padding: 0;
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-outro__link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--paper);
  text-decoration: none;
  padding: 10px 16px;
  border: 1px solid var(--accent-line);
  transition: background 160ms linear, color 160ms linear;
}

.page-faq .faq-outro__link:hover,
.page-faq .faq-outro__link:focus-visible {
  background: var(--accent);
  color: var(--ink);
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 680px) {
  .page-faq .faq-step-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

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

@media (min-width: 960px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 0.85fr);
    align-items: start;
  }

  .page-faq .faq-rules__layout {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr);
    align-items: start;
  }

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

  .page-faq .faq-return {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
    align-items: start;
  }

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

@media (min-width: 1200px) {
  .page-faq .faq-hero h1 {
    font-size: clamp(3rem, 4.4vw, 4.2rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}