.page-faq {
  --faq-pad: clamp(20px, 4vw, 56px);
  --faq-max: 1160px;
  --faq-hair: rgba(201, 214, 226, .18);
  --faq-hair-strong: rgba(201, 214, 226, .32);
  --faq-body: rgba(242, 245, 248, .84);
  display: block;
  padding: 0 var(--faq-pad) clamp(72px, 10vw, 128px);
  color: var(--faq-body);
  font-family: var(--font-body);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  max-width: var(--faq-max);
  margin: 0 auto;
  padding: clamp(18px, 3.5vw, 36px) 0 clamp(26px, 4vw, 46px);
  border-bottom: 1px solid var(--faq-hair-strong);
}

.page-faq .faq-hero .crumbs {
  margin-bottom: clamp(24px, 4vw, 46px);
}

.page-faq .faq-hero__kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-faq .faq-hero__title {
  margin: 0 0 clamp(16px, 2.4vw, 26px);
  max-width: 24ch;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 6.4vw, 68px);
  line-height: 1.04;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-faq .faq-hero__lede {
  margin: 0;
  max-width: 64ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.8;
  color: var(--faq-body);
}

/* ---------- 双栏骨架 ---------- */
.page-faq .faq-shell {
  max-width: var(--faq-max);
  margin: 0 auto;
  padding-top: clamp(26px, 4vw, 54px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 40px);
}

/* ---------- 问题索引 ---------- */
.page-faq .faq-toc {
  min-width: 0;
}

.page-faq .faq-toc__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-faq .faq-toc__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-toc__item {
  flex: 0 0 auto;
}

.page-faq .faq-toc__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border: 1px solid var(--faq-hair);
  border-radius: 2px;
  background: var(--navy-700);
  color: var(--line);
  font-size: 13px;
  line-height: 1.35;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color .22s var(--ease), color .22s var(--ease), background-color .22s var(--ease);
}

.page-faq .faq-toc__link:hover,
.page-faq .faq-toc__link:focus-visible {
  border-color: var(--amber);
  color: var(--paper);
  outline: none;
}

.page-faq .faq-toc__num {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  color: var(--amber);
  letter-spacing: .04em;
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-item {
  padding: clamp(26px, 4vw, 44px) 0;
  border-top: 1px solid var(--faq-hair);
  scroll-margin-top: calc(var(--bar-h) + 20px);
}

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

.page-faq .faq-item__head {
  display: flex;
  align-items: baseline;
  gap: clamp(12px, 2vw, 20px);
  margin-bottom: clamp(13px, 2vw, 20px);
}

.page-faq .faq-item__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: clamp(13px, 1.4vw, 15px);
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--amber);
}

.page-faq .faq-item__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(21px, 3.4vw, 31px);
  line-height: 1.16;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-faq .faq-item__lead {
  margin: 0 0 18px;
  max-width: 66ch;
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--faq-body);
}

/* ---------- 步骤列表 ---------- */
.page-faq .faq-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 13px;
}

.page-faq .faq-steps__item {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding-left: 12px;
  border-left: 1px solid var(--faq-hair);
}

.page-faq .faq-steps__no {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.95;
  letter-spacing: .04em;
  color: var(--amber);
}

.page-faq .faq-steps__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--faq-body);
}

/* ---------- 色块说明 ---------- */
.page-faq .faq-tags {
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

.page-faq .faq-tag {
  display: grid;
  grid-template-columns: 16px minmax(0, 1fr);
  grid-template-rows: auto auto;
  gap: 3px 11px;
  padding: 12px 14px;
  border: 1px solid var(--faq-hair);
  border-radius: 2px;
  background: var(--navy-700);
}

.page-faq .faq-tag__swatch {
  grid-row: 1 / 3;
  width: 16px;
  height: 16px;
  margin-top: 3px;
  border-radius: 1px;
}

.page-faq .faq-tag__swatch--yellow { background: var(--yellow); }
.page-faq .faq-tag__swatch--red { background: var(--red); }
.page-faq .faq-tag__swatch--amber { background: var(--amber); }

.page-faq .faq-tag__name {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .05em;
  color: var(--paper);
}

.page-faq .faq-tag__desc {
  font-size: 13px;
  line-height: 1.65;
  color: var(--mist);
}

/* ---------- 节奏数字 ---------- */
.page-faq .faq-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 10px;
  margin: 0 0 20px;
}

.page-faq .faq-metric {
  padding: 15px 16px 17px;
  border: 1px solid var(--faq-hair);
  border-radius: 2px;
  background: linear-gradient(158deg, rgba(26, 46, 66, .92), rgba(18, 34, 50, .92));
}

.page-faq .faq-metric__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -.02em;
  font-variant-numeric: tabular-nums;
  color: var(--amber);
}

.page-faq .faq-metric__unit {
  margin-left: 4px;
  font-size: 12px;
  font-weight: 400;
  letter-spacing: .08em;
  color: var(--mist);
}

.page-faq .faq-metric__label {
  margin: 9px 0 0;
  font-size: 13px;
  line-height: 1.62;
  color: var(--line);
}

/* ---------- 联系信息块 ---------- */
.page-faq .faq-contact {
  margin: 0 0 18px;
  border: 1px solid var(--faq-hair);
  border-radius: 2px;
  background: var(--navy-700);
  overflow: hidden;
}

.page-faq .faq-contact__row {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 12px;
  margin: 0;
  padding: 13px 16px;
  border-top: 1px solid var(--faq-hair);
  font-size: 14.5px;
  line-height: 1.7;
}

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

.page-faq .faq-contact__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--mist);
  padding-top: 3px;
}

.page-faq .faq-contact__val {
  color: var(--paper);
  word-break: break-word;
}

/* ---------- 旁注与链接 ---------- */
.page-faq .faq-note {
  margin: 18px 0 0;
  padding-left: 14px;
  border-left: 2px solid rgba(223, 166, 58, .5);
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .faq-note a,
.page-faq .faq-item__lead a,
.page-faq .faq-steps__text a {
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid rgba(223, 166, 58, .45);
  transition: border-color .2s var(--ease), color .2s var(--ease);
}

.page-faq .faq-note a:hover,
.page-faq .faq-item__lead a:hover,
.page-faq .faq-steps__text a:hover,
.page-faq .faq-note a:focus-visible,
.page-faq .faq-item__lead a:focus-visible,
.page-faq .faq-steps__text a:focus-visible {
  color: #F0BE62;
  border-bottom-color: var(--amber);
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: clamp(20px, 3vw, 30px) 0 0;
  border: 1px solid var(--faq-hair);
  border-radius: 2px;
  background: var(--navy-700);
  overflow: hidden;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(.55) contrast(1.05) brightness(.94);
}

.page-faq .faq-figure figcaption {
  padding: 11px 14px;
  border-top: 1px solid var(--faq-hair);
  background: rgba(10, 22, 34, .6);
  font-size: 12.5px;
  line-height: 1.66;
  color: var(--mist);
}

/* ---------- 桌面端 ---------- */
@media (min-width: 1024px) {
  .page-faq .faq-shell {
    grid-template-columns: minmax(178px, 226px) minmax(0, 1fr);
    gap: clamp(36px, 5vw, 74px);
    align-items: start;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: calc(var(--bar-h) + 28px);
  }

  .page-faq .faq-toc__list {
    display: block;
    overflow: visible;
    padding: 0;
    border-left: 1px solid var(--faq-hair);
  }

  .page-faq .faq-toc__item {
    display: block;
  }

  .page-faq .faq-toc__link {
    display: flex;
    align-items: baseline;
    gap: 10px;
    margin-left: -1px;
    padding: 10px 0 10px 14px;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    background: transparent;
    white-space: normal;
    font-size: 14px;
    line-height: 1.6;
    color: var(--mist);
  }

  .page-faq .faq-toc__link:hover,
  .page-faq .faq-toc__link:focus-visible {
    border-left-color: var(--amber);
    background: transparent;
    color: var(--paper);
  }

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

  .page-faq .faq-steps {
    gap: 15px;
  }

  .page-faq .faq-figure--path {
    max-width: 760px;
  }
}

@media (min-width: 640px) and (max-width: 1023px) {
  .page-faq .faq-tags {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-toc__link,
  .page-faq .faq-note a,
  .page-faq .faq-item__lead a,
  .page-faq .faq-steps__text a {
    transition: none;
  }
}