.page-faq {
  --faq-line: var(--moss);
  --faq-gap: clamp(20px, 4vw, 40px);
  --faq-num: clamp(42px, 9vw, 84px);
  padding-bottom: clamp(28px, 6vw, 64px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 5.5vw, 60px) 0 clamp(30px, 5vw, 56px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -36%;
  right: -12%;
  width: min(640px, 92vw);
  height: min(640px, 92vw);
  background: radial-gradient(circle at 50% 50%, rgba(63, 227, 200, 0.15), rgba(63, 227, 200, 0) 68%);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: repeating-linear-gradient(90deg, var(--moss) 0 14px, transparent 14px 30px);
}

.page-faq .faq-hero .eyebrow {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero h1 {
  position: relative;
  z-index: 1;
  margin: 14px 0 0;
  max-width: 19ch;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(28px, 5.4vw, 52px);
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--mist);
}

.page-faq .faq-hero .lede {
  position: relative;
  z-index: 1;
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.82;
  color: var(--sage);
}

.page-faq .faq-hero__meta {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: clamp(20px, 3vw, 30px);
}

/* ---------- 准备区 ---------- */
.page-faq .faq-prep {
  padding-top: clamp(30px, 5vw, 58px);
}

.page-faq .faq-prep .note {
  margin-top: 10px;
}

.page-faq .faq-check {
  list-style: none;
  margin: clamp(22px, 3.4vw, 34px) 0 0;
  padding: 1px;
  display: grid;
  gap: 1px;
  background: var(--moss);
  border: 1px solid var(--moss);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-faq .faq-check > li {
  background: var(--block);
  padding: clamp(18px, 2.8vw, 30px);
}

.page-faq .faq-check h3 {
  margin: 0 0 10px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 16.5px;
  line-height: 1.4;
  color: var(--mist);
}

.page-faq .faq-check p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--sage);
}

@media (min-width: 780px) {
  .page-faq .faq-check {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 步骤区块 ---------- */
.page-faq .faq-step {
  padding: clamp(34px, 5.6vw, 70px) 0;
  border-top: 1px dashed var(--moss);
}

.page-faq .faq-step__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3.2vw, 30px);
}

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

.page-faq .faq-step__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: var(--faq-num);
  line-height: 0.8;
  letter-spacing: -0.06em;
  color: var(--lime);
}

.page-faq .faq-step__num::after {
  content: "";
  display: block;
  width: 36px;
  height: 3px;
  margin-top: 14px;
  border-radius: 2px;
  background: var(--lime);
}

.page-faq .faq-step[data-tone="cyan"] .faq-step__num {
  color: var(--cyan);
}
.page-faq .faq-step[data-tone="cyan"] .faq-step__num::after {
  background: var(--cyan);
}
.page-faq .faq-step[data-tone="amber"] .faq-step__num {
  color: var(--amber);
}
.page-faq .faq-step[data-tone="amber"] .faq-step__num::after {
  background: var(--amber);
}
.page-faq .faq-step[data-tone="whistle"] .faq-step__num {
  color: var(--whistle);
}
.page-faq .faq-step[data-tone="whistle"] .faq-step__num::after {
  background: var(--whistle);
}

.page-faq .faq-step__notes {
  list-style: none;
  margin: 20px 0 0;
  padding: 0 0 0 14px;
  border-left: 2px solid var(--faq-line);
}

.page-faq .faq-step__notes li {
  margin-bottom: 12px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--sage);
}

.page-faq .faq-step__notes li:last-child {
  margin-bottom: 0;
}

.page-faq .faq-step__notes strong {
  display: block;
  margin-bottom: 2px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  font-weight: 600;
  color: var(--mist);
}

.page-faq .faq-step__body h2 {
  margin: 0 0 14px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(21px, 3.2vw, 31px);
  line-height: 1.28;
  letter-spacing: -0.015em;
  color: var(--mist);
}

.page-faq .faq-step__body > p {
  margin: 0 0 18px;
  max-width: 60ch;
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--mist);
}

.page-faq .faq-step__body .note {
  margin: 4px 0 0;
}

.page-faq .faq-step[data-tone="cyan"] .faq-step__body > p:first-of-type {
  border-left: 2px solid rgba(63, 227, 200, 0.4);
  padding-left: 16px;
}

/* 步骤清单 */
.page-faq .faq-steps {
  list-style: none;
  counter-reset: fstep;
  margin: 0 0 6px;
  padding: 0;
  max-width: 60ch;
}

.page-faq .faq-steps > li {
  position: relative;
  margin-bottom: 15px;
  padding-left: 40px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .faq-steps > li:last-child {
  margin-bottom: 0;
}

.page-faq .faq-steps > li::before {
  counter-increment: fstep;
  content: counter(fstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: var(--lime);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.page-faq .faq-step[data-tone="cyan"] .faq-steps > li::before {
  background: var(--cyan);
}
.page-faq .faq-step[data-tone="amber"] .faq-steps > li::before {
  background: var(--amber);
}
.page-faq .faq-step[data-tone="whistle"] .faq-steps > li::before {
  background: var(--whistle);
  color: var(--ink);
}

/* 折叠明细 */
.page-faq .faq-fold {
  margin-top: 22px;
  border: 1px solid var(--moss);
  border-radius: var(--radius);
  background: var(--block-2);
  overflow: hidden;
}

.page-faq .faq-fold > summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 16px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.07em;
  color: var(--cyan);
}

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

.page-faq .faq-fold > summary::before {
  content: "+";
  width: 16px;
  font-size: 15px;
  line-height: 1;
  color: var(--lime);
}

.page-faq .faq-fold[open] > summary::before {
  content: "–";
}

.page-faq .faq-fold__body {
  padding: 0 16px 18px;
}

.page-faq .faq-fold__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--sage);
}

/* 图片与图注 */
.page-faq .faq-step__figure {
  margin: 0;
}

.page-faq .faq-step__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: var(--radius-lg);
  border: 1px solid var(--moss);
  background: var(--block);
  object-fit: cover;
}

.page-faq .faq-step__figure figcaption {
  margin-top: 12px;
  padding-left: 12px;
  border-left: 2px solid var(--moss);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--sage);
}

/* 胶囊条件示意 */
.page-faq .faq-caps {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0 14px;
}

.page-faq .faq-cap {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  border: 1px solid var(--moss);
  border-radius: 999px;
  background: transparent;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.03em;
  color: var(--sage);
  white-space: nowrap;
}

.page-faq .faq-cap--on {
  border-color: var(--lime);
  background: rgba(200, 255, 63, 0.09);
  color: var(--lime);
}

.page-faq .faq-cap--on::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 8px;
  border-radius: 50%;
  background: var(--lime);
}

/* 轮次刻度示意 */
.page-faq .faq-step__figure--plain {
  padding: clamp(16px, 2.4vw, 24px);
  border: 1px solid var(--moss);
  border-radius: var(--radius-lg);
  background: var(--block-2);
}

.page-faq .faq-scale-demo {
  position: relative;
  padding-left: 22px;
}

.page-faq .faq-scale-demo__bar {
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--lime), rgba(200, 255, 63, 0.12));
}

.page-faq .faq-scale-demo .scale {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-scale-demo .scale__item {
  position: relative;
  padding: 8px 0 8px 4px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: var(--sage);
}

.page-faq .faq-scale-demo .scale__item::before {
  content: "";
  position: absolute;
  left: -22px;
  top: 14px;
  width: 12px;
  height: 2px;
  background: var(--moss);
}

.page-faq .faq-scale-demo .scale__item[data-active] {
  color: var(--lime);
}

.page-faq .faq-scale-demo .scale__item[data-active]::before {
  width: 18px;
  background: var(--lime);
}

/* 导出区数字组 */
.page-faq .faq-step__extras {
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-faq .faq-stat {
  padding: clamp(16px, 2.4vw, 22px);
  border: 1px solid var(--moss);
  border-radius: var(--radius);
  background: var(--block-2);
}

.page-faq .faq-stat .stat__value {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(30px, 4.6vw, 44px);
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--amber);
}

.page-faq .faq-stat .stat__label {
  display: block;
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--sage);
}

.page-faq .faq-inline-link {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-inline-link:hover,
.page-faq .faq-inline-link:focus-visible {
  color: var(--lime);
}

/* ---------- 排查区 ---------- */
.page-faq .faq-trouble {
  padding-top: clamp(34px, 5.6vw, 68px);
  padding-bottom: clamp(34px, 5.6vw, 68px);
}

.page-faq .faq-trouble .filter-bar {
  margin: clamp(20px, 3vw, 30px) 0 0;
}

.page-faq .faq-trace {
  list-style: none;
  margin: clamp(24px, 3.6vw, 38px) 0 0;
  padding: 0;
}

.page-faq .faq-trace__row {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 0 16px;
  position: relative;
  padding-bottom: clamp(22px, 3vw, 32px);
}

.page-faq .faq-trace__row::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 40px;
  bottom: 0;
  width: 1px;
  background: repeating-linear-gradient(180deg, var(--moss) 0 6px, transparent 6px 12px);
}

.page-faq .faq-trace__row:last-child::before {
  content: none;
}

.page-faq .faq-trace__dot {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 37px;
  height: 37px;
  border-radius: 50%;
  border: 1px solid var(--whistle);
  background: var(--block);
  color: var(--whistle);
  font-size: 12px;
  font-weight: 700;
}

.page-faq .faq-trace__body {
  padding-top: 4px;
}

.page-faq .faq-trace__body h3 {
  margin: 0 0 10px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(17px, 2.2vw, 20px);
  line-height: 1.42;
  color: var(--mist);
}

.page-faq .faq-trace__fix {
  margin: 0;
  padding-left: 18px;
  list-style: decimal;
}

.page-faq .faq-trace__fix li {
  margin-bottom: 8px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--sage);
}

.page-faq .faq-trace__fix li:last-child {
  margin-bottom: 0;
}

.page-faq .faq-next {
  display: grid;
  gap: clamp(18px, 2.6vw, 26px);
  margin-top: clamp(16px, 2.6vw, 26px);
  padding: clamp(22px, 3.4vw, 36px);
  border: 1px solid var(--moss);
  border-radius: var(--radius-lg);
  background: linear-gradient(120deg, rgba(255, 122, 51, 0.1), rgba(6, 26, 21, 0) 62%), var(--block-2);
}

.page-faq .faq-next__text h2 {
  margin: 0 0 10px;
}

.page-faq .faq-next__text p {
  margin: 0;
  max-width: 52ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--sage);
}

.page-faq .faq-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 延伸阅读 ---------- */
.page-faq .faq-more {
  padding-top: clamp(30px, 5vw, 58px);
}

.page-faq .faq-more__card {
  display: block;
  text-decoration: none;
  transition: transform 180ms ease, border-color 180ms ease;
}

.page-faq .faq-more__card h3 {
  margin: 10px 0 10px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(17px, 2.2vw, 21px);
  line-height: 1.4;
  color: var(--mist);
}

.page-faq .faq-more__card p {
  margin: 0 0 16px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--sage);
}

.page-faq .faq-more__cue {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.07em;
  color: var(--lime);
}

.page-faq .faq-more__card:hover,
.page-faq .faq-more__card:focus-visible {
  transform: translateY(-3px);
  border-color: var(--lime);
}

@media (hover: none) {
  .page-faq .faq-more__card:hover {
    transform: none;
  }
}

/* ---------- 桌面布局 ---------- */
@media (min-width: 940px) {
  .page-faq .faq-step__grid {
    grid-template-columns: 152px minmax(0, 1fr) minmax(0, 1.04fr);
    gap: clamp(24px, 3.2vw, 46px);
    align-items: start;
  }

  .page-faq .faq-step__aside {
    padding-top: 6px;
  }

  .page-faq .faq-step__notes {
    margin-top: 24px;
  }

  .page-faq .faq-step[data-tone="cyan"] .faq-step__body {
    padding-left: 22px;
    border-left: 1px dashed var(--moss);
  }

  .page-faq .faq-trace__row {
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 0 24px;
  }

  .page-faq .faq-trace__row::before {
    left: 21px;
  }

  .page-faq .faq-trace__dot {
    width: 43px;
    height: 43px;
    font-size: 13px;
  }

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

  .page-faq .faq-next__links {
    justify-content: flex-end;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-step__extras {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* ---------- 窄屏收敛 ---------- */
@media (max-width: 560px) {
  .page-faq .faq-hero h1 {
    max-width: none;
  }

  .page-faq .faq-step__num {
    font-size: clamp(40px, 15vw, 64px);
  }

  .page-faq .faq-caps {
    gap: 7px;
  }

  .page-faq .faq-cap {
    font-size: 11px;
    padding: 7px 12px;
  }

  .page-faq .faq-next__links .btn {
    flex: 1 1 100%;
    justify-content: center;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-more__card {
    transition: none;
  }

  .page-faq .faq-more__card:hover,
  .page-faq .faq-more__card:focus-visible {
    transform: none;
  }
}