.page-faq {
  --faq-gap: clamp(62px, 9vw, 124px);
  --faq-rail-w: 226px;
  --faq-num-w: clamp(38px, 8vw, 56px);

  display: block;
  color: var(--text-100);
  background:
    radial-gradient(920px 420px at 10% -80px, rgba(201, 162, 39, 0.075), transparent 70%),
    radial-gradient(720px 400px at 94% 30%, rgba(47, 168, 255, 0.055), transparent 72%),
    var(--ink-900);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: clamp(34px, 6vw, 68px) 0 clamp(38px, 5vw, 62px);
}

.page-faq .breadcrumb {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-400);
}

.page-faq .breadcrumb a {
  color: var(--text-400);
  text-decoration: none;
}

.page-faq .breadcrumb a:hover {
  color: var(--blue-500);
}

.page-faq .breadcrumb__sep {
  margin: 0 8px;
  color: var(--steel-700);
}

.page-faq .breadcrumb__current {
  color: var(--gold-500);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  margin-top: clamp(24px, 4vw, 44px);
}

.page-faq .faq-hero__lead h1 {
  margin: 14px 0 0;
  max-width: 16ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 6.2vw, 64px);
  line-height: 1.06;
  letter-spacing: -0.03em;
  color: var(--text-100);
}

.page-faq .faq-hero__intro {
  margin: 20px 0 0;
  max-width: 60ch;
  font-size: clamp(15.5px, 1.6vw, 17px);
  line-height: 1.72;
  color: var(--text-100);
}

.page-faq .faq-hero__intro::first-letter {
  color: var(--gold-200);
}

.page-faq .faq-hero__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-faq .faq-hero__aside {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  align-content: start;
}

.page-faq .faq-stat {
  position: relative;
  padding: 22px 22px 20px;
  border: 1px solid var(--steel-700);
  border-radius: var(--radius-md);
  background: linear-gradient(158deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0));
  backdrop-filter: blur(6px);
  overflow: hidden;
}

.page-faq .faq-stat::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 2px;
  background: linear-gradient(180deg, transparent, var(--gold-500), transparent);
}

.page-faq .faq-stat--alt::before {
  background: linear-gradient(180deg, transparent, var(--blue-500), transparent);
}

.page-faq .faq-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(40px, 6vw, 54px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--gold-500);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-stat--alt .faq-stat__num {
  color: var(--blue-500);
}

.page-faq .faq-stat__unit {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--text-100);
}

.page-faq .faq-stat__note {
  margin: 12px 0 0;
  font-size: 13.5px;
  line-height: 1.62;
  color: var(--text-400);
}

/* ---------- 版面骨架 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  grid-template-areas:
    "rail"
    "main";
  gap: 30px;
  padding-bottom: clamp(72px, 9vw, 130px);
}

.page-faq .faq-main {
  grid-area: main;
  min-width: 0;
}

.page-faq .faq-rail {
  grid-area: rail;
  min-width: 0;
}

.page-faq .toc__title {
  margin: 0 0 12px;
  padding-left: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--text-400);
}

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

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

.page-faq .toc__list a {
  display: flex;
  flex: 0 0 auto;
  align-items: baseline;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--steel-700);
  border-radius: 999px;
  color: var(--text-400);
  font-size: 13.5px;
  white-space: nowrap;
  text-decoration: none;
  transition: color 0.22s ease, border-color 0.22s ease, background 0.22s ease;
}

.page-faq .toc__list a .mono {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  opacity: 0.75;
}

.page-faq .toc__list a:hover {
  color: var(--gold-200);
  border-color: var(--line-gold-deep);
}

.page-faq .toc__list a.is-current {
  color: var(--gold-500);
  border-color: var(--gold-500);
  background: rgba(201, 162, 39, 0.09);
}

/* ---------- 分组 ---------- */
.page-faq .faq-group + .faq-group {
  margin-top: var(--faq-gap);
}

.page-faq .faq-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 18px;
  padding-bottom: 20px;
  margin-bottom: clamp(26px, 3.4vw, 40px);
  border-bottom: 1px solid var(--steel-700);
}

.page-faq .faq-group__head .sec-num {
  flex: 0 0 auto;
  padding-top: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--gold-500);
}

.page-faq .faq-group__title {
  flex: 1 1 auto;
  min-width: 0;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 4.4vw, 42px);
  line-height: 1.12;
  letter-spacing: -0.025em;
  color: var(--text-100);
}

.page-faq .faq-group__desc {
  flex: 1 1 100%;
  margin: 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.68;
  color: var(--text-400);
}

/* ---------- 步骤 + 图 ---------- */
.page-faq .faq-path {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  margin-bottom: clamp(30px, 4vw, 46px);
}

.page-faq .faq-steps {
  counter-reset: faqstep;
  display: grid;
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-steps > li {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  counter-increment: faqstep;
}

.page-faq .faq-steps > li::before {
  content: counter(faqstep, decimal-leading-zero);
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  margin-top: 2px;
  border-radius: 999px;
  background: var(--gold-500);
  color: var(--ink-900);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.page-faq .faq-steps > li p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.68;
  color: var(--text-100);
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 0;
  border: 1px solid var(--steel-700);
  border-radius: var(--radius-md);
  background: var(--ink-800);
  overflow: hidden;
}

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

.page-faq .faq-figure__cap {
  padding: 10px 16px;
  border-top: 1px solid var(--steel-700);
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--text-400);
}

/* ---------- 会员中心区块 ---------- */
.page-faq .faq-member {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  margin-bottom: clamp(30px, 4vw, 46px);
}

.page-faq .faq-member__side {
  display: grid;
  gap: 20px;
  align-content: start;
}

.page-faq .faq-diagram {
  display: block;
  width: 100%;
  max-width: 430px;
  height: auto;
  padding: 14px;
  border: 1px solid var(--steel-700);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.02);
}

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

.page-faq .faq-order > li {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  background: var(--ink-800);
}

.page-faq .faq-order__tag {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--gold-500);
}

.page-faq .faq-order > li p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.62;
  color: var(--text-100);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  border-top: 1px solid var(--steel-700);
}

.page-faq .faq-list--flush {
  border-top: 1px solid var(--steel-700);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--steel-700);
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 22px 4px 22px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item > summary:focus-visible {
  outline: 2px solid var(--blue-500);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

.page-faq .faq-item__num {
  flex: 0 0 auto;
  width: var(--faq-num-w);
  padding-top: 5px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--text-400);
  transition: color 0.22s ease;
}

.page-faq .faq-item__q {
  flex: 1 1 auto;
  min-width: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(17px, 2.1vw, 21px);
  line-height: 1.46;
  letter-spacing: -0.012em;
  color: var(--text-100);
  transition: color 0.22s ease;
}

.page-faq .faq-item > summary:hover .faq-item__q {
  color: var(--gold-200);
}

.page-faq .faq-item__mark {
  flex: 0 0 22px;
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  margin-top: 4px;
}

.page-faq .faq-item__mark::after {
  content: "";
  display: block;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--blue-500);
  border-bottom: 2px solid var(--blue-500);
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform 0.3s ease, border-color 0.22s ease;
}

.page-faq .faq-item[open] .faq-item__num {
  color: var(--gold-500);
}

.page-faq .faq-item[open] .faq-item__q {
  color: var(--gold-500);
}

.page-faq .faq-item[open] .faq-item__mark::after {
  transform: rotate(-135deg) translate(-2px, -2px);
  border-color: var(--gold-500);
}

.page-faq .faq-item__body {
  margin-left: calc(var(--faq-num-w) + 14px);
  padding: 2px 10px 26px 20px;
  border-left: 1px solid transparent;
  max-width: 68ch;
  font-size: 16px;
  line-height: 1.74;
  color: var(--text-100);
  transition: border-color 0.3s ease;
}

.page-faq .faq-item[open] .faq-item__body {
  border-left-color: var(--gold-500);
  animation: faq-open 0.34s ease both;
}

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

@keyframes faq-open {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 订阅：正文 + 侧板 ---------- */
.page-faq .faq-cols {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
}

.page-faq .faq-side {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 22px 20px;
  border: 1px solid var(--steel-700);
  border-radius: var(--radius-md);
  background: linear-gradient(160deg, rgba(47, 168, 255, 0.07), rgba(255, 255, 255, 0));
}

.page-faq .faq-side__title {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--blue-200);
}

.page-faq .faq-side__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--steel-700);
  color: var(--blue-500);
  font-size: 15px;
  text-decoration: none;
  transition: color 0.22s ease;
}

.page-faq .faq-side__link:hover {
  color: var(--gold-200);
}

.page-faq .faq-side__note {
  margin: 6px 0 0;
  font-size: 13.5px;
  line-height: 1.62;
  color: var(--text-400);
}

/* ---------- 判断提示条 ---------- */
.page-faq .faq-flag {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 16px;
  padding: 16px 18px;
  margin-bottom: clamp(24px, 3vw, 34px);
  border: 1px solid rgba(255, 122, 51, 0.42);
  border-radius: var(--radius-md);
  background: rgba(255, 122, 51, 0.07);
}

.page-faq .faq-flag__tag {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--orange-500);
}

.page-faq .faq-flag p {
  flex: 1 1 260px;
  margin: 0;
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--text-100);
}

/* ---------- 联系 ---------- */
.page-faq .faq-contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-faq .faq-contact__card {
  padding: 22px 20px;
  border: 1px solid var(--steel-700);
  border-radius: var(--radius-md);
  background: linear-gradient(158deg, rgba(201, 162, 39, 0.08), rgba(255, 255, 255, 0));
}

.page-faq .faq-contact__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--gold-500);
}

.page-faq .faq-contact__tip {
  margin: 20px 0 0;
  max-width: 68ch;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text-400);
}

.page-faq .faq-contact__tip a {
  color: var(--blue-500);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 168, 255, 0.4);
}

.page-faq .faq-contact__tip a:hover {
  color: var(--gold-200);
  border-bottom-color: var(--gold-200);
}

/* ---------- 窄屏细节 ---------- */
@media (max-width: 520px) {
  .page-faq .faq-item > summary {
    gap: 10px;
    padding: 18px 2px 18px 0;
  }

  .page-faq .faq-item__body {
    margin-left: 0;
    padding: 2px 0 24px 16px;
  }

  .page-faq .faq-order > li {
    grid-template-columns: 44px minmax(0, 1fr);
    padding: 12px 12px;
  }

  .page-faq .faq-hero__acts .btn {
    flex: 1 1 auto;
    justify-content: center;
    text-align: center;
  }
}

/* ---------- 中屏 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-path {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    gap: 32px;
    align-items: start;
  }

  .page-faq .faq-contact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

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

/* ---------- 大屏 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.7fr);
    gap: 48px;
    align-items: start;
  }

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

  .page-faq .faq-member {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    gap: 34px;
    align-items: start;
  }

  .page-faq .faq-cols {
    grid-template-columns: minmax(0, 1.55fr) minmax(240px, 0.75fr);
    gap: 38px;
    align-items: start;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 1fr) var(--faq-rail-w);
    grid-template-areas: "main rail";
    gap: 54px;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--head-h) + 30px);
    align-self: start;
  }

  .page-faq .toc__list {
    display: grid;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .toc__list a {
    flex: 1 1 auto;
    padding: 10px 4px 10px 14px;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-size: 14.5px;
    white-space: normal;
  }

  .page-faq .toc__list a:hover {
    background: rgba(255, 255, 255, 0.035);
    border-left-color: var(--line-gold-deep);
  }

  .page-faq .toc__list a.is-current {
    background: rgba(201, 162, 39, 0.07);
    border-left-color: var(--gold-500);
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item[open] .faq-item__body {
    animation: none;
  }

  .page-faq .faq-item__mark::after,
  .page-faq .toc__list a,
  .page-faq .faq-item__q {
    transition: none;
  }
}