/* ===== 新手指引 /index/ —— 页面专属样式，作用域 .page-faq ===== */

.page-faq {
  --faq-strip: var(--pitch);
  --faq-line: var(--rule);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 4vw, 44px) 0 clamp(40px, 6vw, 80px);
  border-bottom: 1px solid var(--rule);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(90deg, var(--rule) 1px, transparent 1px),
    linear-gradient(180deg, var(--rule) 1px, transparent 1px);
  background-size: var(--grid-unit) var(--grid-unit);
  opacity: .32;
  pointer-events: none;
}

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

.page-faq .faq-hero .breadcrumb {
  margin-bottom: clamp(28px, 5vw, 56px);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 56px);
}

.page-faq .faq-hero__accent {
  color: var(--pitch);
}

.page-faq .faq-hero__lead .lede {
  max-width: 46ch;
  margin-top: var(--sp-1);
}

.page-faq .faq-hero__aside {
  background: var(--ink);
  color: var(--paper);
  padding: clamp(20px, 3vw, 32px);
  display: flex;
  flex-direction: column;
  gap: 14px;
  border-left: 4px solid var(--lime);
}

.page-faq .faq-hero__tag {
  align-self: flex-start;
  background: var(--lime);
  color: var(--ink);
  font-size: 11px;
  letter-spacing: .16em;
  padding: 4px 10px;
  font-weight: 700;
}

.page-faq .faq-hero__asideText {
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--paper);
}

.page-faq .faq-hero__asideList {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
  border-top: 1px solid rgba(245, 241, 231, .22);
  padding-top: 14px;
}

.page-faq .faq-hero__asideList li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(245, 241, 231, .78);
}

.page-faq .faq-hero__asideList li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 6px;
  height: 6px;
  background: var(--lime);
}

/* ---------- 三样 ---------- */

.page-faq .faq-first__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  margin-top: var(--sp-2);
}

.page-faq .faq-first__item {
  background: var(--paper);
  padding: clamp(22px, 3vw, 36px);
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
}

.page-faq .faq-first__item--ink {
  background: var(--ink);
  color: var(--paper);
}

.page-faq .faq-first__idx {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--pitch);
  border: 1px solid var(--rule);
  padding: 3px 9px;
  align-self: flex-start;
}

.page-faq .faq-first__idx--lime {
  color: var(--lime);
  border-color: rgba(199, 241, 58, .5);
}

.page-faq .faq-first__title {
  margin: 0;
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 600;
  line-height: 1.25;
  color: inherit;
}

.page-faq .faq-first__body {
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-first__item--ink .faq-first__body {
  color: rgba(245, 241, 231, .76);
}

.page-faq .faq-first__hint {
  margin: auto 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--rule);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--pitch);
}

.page-faq .faq-first__item--ink .faq-first__hint {
  border-top-color: rgba(245, 241, 231, .22);
  color: var(--lime);
}

/* ---------- 四阶段 ---------- */

.page-faq .faq-stages__figure {
  margin: var(--sp-2) 0 0;
}

.page-faq .faq-stages__figure .figure__img {
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
}

.page-faq .faq-stages__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  border-top: none;
}

.page-faq .faq-stages__item {
  background: var(--paper);
  padding: clamp(20px, 2.6vw, 30px);
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
}

.page-faq .faq-stages__item:nth-child(2) { background: var(--paper-2); }
.page-faq .faq-stages__item:nth-child(4) { background: var(--paper-2); }

.page-faq .faq-stages__mark {
  font-family: var(--font-num);
  font-size: 40px;
  line-height: .9;
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--pitch);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-stages__item:nth-child(2) .faq-stages__mark {
  font-size: 30px;
  color: var(--orange);
}

.page-faq .faq-stages__item:nth-child(4) .faq-stages__mark {
  font-size: 30px;
  color: var(--ink);
}

.page-faq .faq-stages__title {
  margin: 0;
  font-size: 17px;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--ink);
  padding-bottom: 12px;
  border-bottom: 1px solid var(--rule);
}

.page-faq .faq-stages__points {
  margin: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-stages__row {
  display: grid;
  gap: 4px;
}

.page-faq .faq-stages__row dt {
  font-size: 14px;
  font-weight: 700;
  color: var(--brown);
  letter-spacing: .02em;
}

.page-faq .faq-stages__row dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 指标 ---------- */

.page-faq .faq-metrics__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  margin-top: var(--sp-2);
}

.page-faq .faq-metric {
  background: var(--paper);
  padding: clamp(22px, 3vw, 34px);
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: background .22s ease;
}

.page-faq .faq-metric:hover,
.page-faq .faq-metric:focus-within {
  background: var(--paper-2);
}

.page-faq .faq-metric__name {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(26px, 3.6vw, 40px);
  font-weight: 300;
  line-height: 1.05;
  letter-spacing: -.015em;
  color: var(--ink);
}

.page-faq .faq-metric__desc {
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--muted);
  max-width: 46ch;
}

.page-faq .faq-metric__eg {
  margin: auto 0 0;
  padding: 10px 0 0 14px;
  border-left: 2px solid var(--rule);
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  transition: border-color .22s ease, color .22s ease;
}

.page-faq .faq-metric:hover .faq-metric__eg,
.page-faq .faq-metric:focus-within .faq-metric__eg {
  border-color: var(--pitch);
  color: var(--ink);
}

.page-faq .faq-metrics__sample {
  margin-top: var(--sp-2);
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  padding: clamp(20px, 3vw, 32px);
  display: grid;
  gap: 12px;
}

.page-faq .faq-metrics__sampleLabel {
  margin: 0;
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--lime);
  font-weight: 700;
}

.page-faq .faq-metrics__sampleText {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(245, 241, 231, .86);
  max-width: 62ch;
}

.page-faq .faq-metrics__sampleText a {
  color: var(--lime);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-metrics__sampleText a:hover {
  color: var(--paper);
}

/* ---------- 问答 ---------- */

.page-faq .faq-qa__jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: var(--sp-2) 0 var(--sp-3);
}

.page-faq .faq-qa__jumplink {
  display: inline-block;
  padding: 9px 16px;
  border: 1px solid var(--rule);
  color: var(--ink);
  font-size: 14px;
  letter-spacing: .02em;
  text-decoration: none;
  background: var(--paper);
  transition: background .2s ease, color .2s ease, border-color .2s ease;
}

.page-faq .faq-qa__jumplink:hover,
.page-faq .faq-qa__jumplink:focus-visible {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

.page-faq .faq-qa__groups {
  display: grid;
  gap: clamp(36px, 5vw, 64px);
}

.page-faq .faq-qa__group {
  --faq-strip: var(--pitch);
  border-left: 4px solid var(--faq-strip);
  padding-left: clamp(16px, 2.4vw, 30px);
}

.page-faq .faq-qa__group:nth-child(1) { --faq-strip: var(--pitch); }
.page-faq .faq-qa__group:nth-child(2) { --faq-strip: var(--ink); }
.page-faq .faq-qa__group:nth-child(3) { --faq-strip: var(--orange); }
.page-faq .faq-qa__group:nth-child(4) { --faq-strip: var(--brown); }

.page-faq .faq-qa__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 16px;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--rule);
}

.page-faq .faq-qa__badge {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: .18em;
  font-weight: 700;
  color: var(--faq-strip);
  border: 1px solid currentColor;
  padding: 3px 9px;
}

.page-faq .faq-qa__title {
  margin: 0;
  font-size: clamp(20px, 2.6vw, 28px);
  font-weight: 600;
  line-height: 1.25;
  color: var(--ink);
}

.page-faq .faq-qa__figure {
  margin: 20px 0 24px;
}

.page-faq .faq-qa__figure .figure__img {
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
}

.page-faq .faq-qa__item {
  border-bottom: 1px solid var(--rule);
}

.page-faq .faq-qa__item > summary {
  list-style: none;
  cursor: pointer;
  position: relative;
  padding: 16px 40px 16px 0;
  font-size: clamp(16px, 2vw, 19px);
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink);
  transition: color .18s ease;
}

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

.page-faq .faq-qa__item > summary::after {
  content: "+";
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-num);
  font-size: 22px;
  font-weight: 400;
  color: var(--faq-strip);
  line-height: 1;
}

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

.page-faq .faq-qa__item > summary:hover,
.page-faq .faq-qa__item > summary:focus-visible {
  color: var(--pitch);
}

.page-faq .faq-qa__item > p {
  margin: 0 0 18px;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--muted);
}

.page-faq .faq-qa__item > p a {
  color: var(--pitch);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-qa__item > p a:hover {
  color: var(--ink);
}

/* ---------- 联系 ---------- */

.page-faq .faq-ask .container {
  display: grid;
  gap: var(--sp-1);
}

.page-faq .faq-ask__panel {
  background: var(--ink-2);
  color: var(--paper);
  padding: clamp(24px, 4vw, 48px);
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  border-left: 4px solid var(--lime);
}

.page-faq .faq-ask__lead {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-faq .faq-ask .eyebrow--lime {
  color: var(--lime);
  margin: 0;
}

.page-faq .faq-ask__title {
  margin: 0;
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 600;
  line-height: 1.25;
  color: var(--paper);
}

.page-faq .faq-ask__text {
  margin: 0;
  max-width: 52ch;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(245, 241, 231, .8);
}

.page-faq .faq-ask__facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: rgba(245, 241, 231, .18);
}

.page-faq .faq-ask__fact {
  background: var(--ink-2);
  padding: 16px 0;
  display: grid;
  gap: 5px;
}

.page-faq .faq-ask__factKey {
  font-size: 11px;
  letter-spacing: .16em;
  color: rgba(245, 241, 231, .55);
}

.page-faq .faq-ask__factVal {
  font-size: 17px;
  font-weight: 700;
  color: var(--lime);
  word-break: break-all;
}

.page-faq .faq-ask__factNote {
  font-size: 13px;
  line-height: 1.6;
  color: rgba(245, 241, 231, .62);
}

.page-faq .faq-ask__more {
  margin: 0;
  font-size: 15px;
  color: var(--muted);
}

.page-faq .faq-ask__more a {
  color: var(--pitch);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 进阶路线 ---------- */

.page-faq .faq-next__steps {
  list-style: none;
  margin: var(--sp-2) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}

.page-faq .faq-next__step {
  background: var(--paper);
  padding: clamp(22px, 3vw, 34px);
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-faq .faq-next__num {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--orange);
  font-weight: 700;
}

.page-faq .faq-next__stepTitle {
  margin: 0;
  font-size: clamp(19px, 2.2vw, 24px);
  font-weight: 600;
  color: var(--ink);
}

.page-faq .faq-next__stepText {
  margin: 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--muted);
  max-width: 42ch;
}

.page-faq .faq-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: var(--sp-2);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-faq .faq-first__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-faq .faq-first__grid .faq-first__item:last-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 860px) {
  .page-faq .faq-first__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-faq .faq-first__grid .faq-first__item:last-child {
    grid-column: auto;
  }

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

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

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

@media (min-width: 1000px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
  }

  .page-faq .faq-ask__panel {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    align-items: start;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-stages__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (hover: none) {
  .page-faq .faq-metric__eg {
    border-left-color: var(--pitch);
    color: var(--ink);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-metric,
  .page-faq .faq-metric__eg,
  .page-faq .faq-qa__item > summary,
  .page-faq .faq-qa__jumplink {
    transition: none;
  }
}
</main>